Display adjustment method and apparatus

Abstract

To provide a display adjustment method and device for improving the accuracy of adjusting the position of a display.SOLUTION: The display adjustment apparatus may obtain the sensing information, where the sensing information is used to determine the facial area of the target user. The display adjustment apparatus further adjusts, based on the location of the facial area, the location of the display corresponding to the target user, so that the adjusted location of the display can be an easy-to-view location for the user. This may improve a visual effect of the target user, and therefore improve accuracy of adjusting the position of the display.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present application relates to the field of vehicle control, and in particular to a display adjustment method and apparatus. [Background technology]

[0002] In-vehicle infotainment systems are a focus of development for intelligent vehicles. In-vehicle displays are an important component of in-vehicle infotainment systems. In the driver's seat, the user's seat is usually fixed, and as a result, the range of user movement is limited. Therefore, in the above system, it is not suitable for a rear-seat user to select an appropriate viewing angle based on the position of the display from behind the front seat. In this case, the position of the display needs to be adjusted so that the display is in a position that is easy for the user to view. Display position adjustment includes, but is not limited to, adjusting the display's viewing direction and the horizontal and vertical positions of the display relative to the user. It can be understood that if the display's viewing direction is not easy for the user to view, the visual effect of the user viewing the display will be reduced, and the user experience will be affected.

[0003] However, the current method for adjusting the display position does not provide high accuracy. Summary of the Invention

[0004] The present application provides a display adjustment method and device for improving the accuracy of display position adjustment.

[0005] The display adjustment method provided herein may be performed by an electronic device supporting a display adjustment function. The electronic device may be abstracted as a computer system. The electronic device supporting the display adjustment function herein may alternatively be referred to as a display adjustment device. The display adjustment device may be the entire electronic device or some components in the electronic device, such as a chip related to the display adjustment function, such as a system chip or an image chip. The system chip may alternatively be referred to as a system on chip (SoC) or an SoC chip. Specifically, the display adjustment device may be a terminal device or an in-vehicle device, such as an in-vehicle computer or head unit in a vehicle, or may be a system chip, an image chip, or another type of chip that may be disposed in a computer system in the vehicle or in-vehicle device.

[0006] According to a first aspect, a display adjustment method is provided.

[0007] For example, the display adjustment device is an execution body. The method includes: the display adjustment device may obtain sensing information, where the sensing information is used to determine a facial area of ​​a target user. The display adjustment device may further adjust a position of a display corresponding to the target user based on a position of the facial area.

[0008] According to this method, the display adjustment device can adjust the display based on the position of the face area, so that the adjusted position of the display is a position that is easy for the user to see, which can improve the visual effect of the target user and therefore improve the accuracy of the adjustment of the display position.

[0009] In a possible design, the display adjustment device may adjust the position of the display when the position of the facial area exceeds the reference area so that the adjusted position of the facial area is within the reference area.

[0010] According to this design, the display adjustment device can adjust the position of the display based on the positional relationship between the face area and the reference region, and improve the accuracy of adjusting the position of the display.

[0011] In a possible design, the display adjustment device may adjust the position of the display when the distance between the position of the facial area and the position of the reference point exceeds the threshold so that the adjusted distance between the position of the facial area and the position of the reference point is lower than the threshold.

[0012] According to this design, the display adjustment device can adjust the position of the display based on the positional relationship between the face area and the reference point, and improve the accuracy of adjusting the display position.

[0013] In a possible design, the sensing information may include sensing information of a first region and sensing information of a second region, where the first region is an area imaged before the display is adjusted and the second region is an area imaged after the display is adjusted, and in the second region, the display adjustment device may adjust the position of the display when a distance between a position of the facial area of ​​the target user that is in the first region and a reference point in the first region is greater than or equal to the threshold value, such that a distance between the facial area of ​​the target user and a reference point in the second region is less than or equal to the threshold value.

[0014] According to this design, the adjusted position of the display may be closer to the position of the reference point determined based on the sensing information to further improve the accuracy of adjusting the position of the display.

[0015] In a possible design, the threshold is pre-configured or corresponds to a target user, and when the threshold corresponds to the target user, the display may be adjusted based on the user's personalized settings to further refine the adjustment of the display position for the target user.

[0016] In a possible design, the threshold value corresponds to a target user, and the display adjustment device may further obtain the threshold value from the server based on information of the target user.

[0017] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the display adjustment device may determine a target user from the multiple users based on the facial areas of the multiple users and distances between reference points within the first area.

[0018] According to this design, when multiple users can be determined by using the sensing information, a target user is determined from the multiple users based on the distances between the facial areas of the multiple users and the reference point in the first region, which further improves the accuracy of adjusting the display position for the target user, and the distance between the facial area of ​​the target user and the reference point is the smallest among the distances between the facial areas of the multiple users and the reference point.

[0019] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the display adjustment device may determine a user among the multiple users and having a first physical movement as the target user based on the facial areas of the multiple users.

[0020] According to this design, when multiple users can be determined by using the sensing information, a target user is determined from the multiple users based on the users' body movements, further improving the accuracy of adjusting the display position for the target user.

[0021] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the display adjustment device may determine one of the multiple users as the target user in response to a pointing action of the one of the multiple users.

[0022] According to this design, when multiple users can be determined by using the sensing information, a target user is determined from the multiple users based on the users' pointing actions, further improving the accuracy of adjusting the display position for the target user.

[0023] In a possible design, the display is disposed on a seat back of a first seat section of a vehicle, the first seat section being a front seat of a second seat section where the target user is positioned, and the display adjustment device may further adjust the position of the display based on first parameters to further improve the accuracy of the display adjustment, the first parameters including at least one of a distance between the first seat section and the second seat section, an inclination angle of the first seat section, an inclination angle of a headrest where the display is positioned, a length of the seat back of the first seat section, or a length of the headrest, where the headrest is positioned in the first seat section.

[0024] In a possible design, the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, or a perspective position of the display relative to the target user.

[0025] In a possible design, the sensed information is obtained by a visual sensor, the visual sensor including one or more of a camera and a radar.

[0026] In a possible design, the area of ​​the target user's face is the target user's eye area, to further improve the accuracy of the display adjustment.

[0027] According to a second aspect, the present application provides a display adjustment device, the device including a processing module and an input / output module.

[0028] The input / output module may be configured to acquire sensory information, where the sensory information is used to determine a facial area of ​​a target user, and the processing module may adjust a position of a display corresponding to the target user based on a position of the facial area.

[0029] In a possible design, the processing module may adjust the position of the display when the position of the facial area exceeds the reference area, so that the adjusted position of the facial area is within the reference area.

[0030] In a possible design, the processing module may adjust the position of the display when the distance between the position of the facial area and the position of the reference point exceeds the threshold so that the adjusted distance between the position of the facial area and the position of the reference point is lower than the threshold.

[0031] In a possible design, the sensing information may include sensing information of a first region and sensing information of a second region, where the first region is an area imaged before the display is adjusted and the second region is an area imaged after the display is adjusted, and in the second region, the processing module may adjust the position of the display when a distance between a position of the facial area of ​​the target user that is in the first region and a reference point in the first region is greater than or equal to the threshold, such that a distance between the facial area of ​​the target user and a reference point in the second region is less than or equal to the threshold.

[0032] In a possible design, the threshold is pre-configured or corresponds to a target user.

[0033] In a possible design, the input / output module may be further configured to obtain the threshold value from the server based on the target user's information, in which case the input / output module may include a transceiver or a communication interface.

[0034] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the processing module may determine a target user from the multiple users based on the facial areas of the multiple users and distances between reference points within the first area.

[0035] In a possible design, facial areas of the plurality of users may be determined based on first detection information, and a processing module may determine a user among the plurality of users having a first body movement as the target user.

[0036] In a possible design, facial areas of multiple users may be determined based on the first detection information, and a processing module may determine one of the multiple users as the target user in response to a pointing action of the user.

[0037] In a possible design, the display is disposed on a seat back of a first seat section of the vehicle, the first seat section being a front seat of a second seat section in which the target user is positioned, and the processing module may further adjust the position of the display based on first parameters, the first parameters including at least one of a distance between the first seat section and the second seat section, a tilt angle of the first seat section, a tilt angle of a headrest in which the display is positioned, a length of the seat back of the first seat section, or a length of the headrest, wherein the headrest is positioned in the first seat section.

[0038] In a possible design, the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, or a perspective position of the display relative to the target user.

[0039] In a possible design, the sensed information is obtained by a visual sensor, the visual sensor including one or more of a camera and a radar.

[0040] In a possible design, the area of ​​the target user's face is the target user's eye area, to further improve the accuracy of the display adjustment.

[0041] According to a third aspect, the present application provides a computing device including a processor, the processor connected to a memory, the memory storing computer programs or instructions, the processor configured to execute the computer programs or instructions stored in the memory, such that the computing device performs the method of the first aspect or any one of the possible implementations of the first aspect.

[0042] According to a fourth aspect, the present application provides a computer-readable storage medium storing a computer program or instructions that, when executed, enable a computer to perform the method according to the first aspect or any one of the possible implementations of the first aspect.

[0043] According to a fifth aspect, the present application provides a computer program product which, when executed by a computer, enables the computer to carry out the method of the first aspect or any one of the possible implementations of the first aspect.

[0044] According to a sixth aspect, the present application provides a chip, connected to a memory and configured to read and execute computer programs or instructions stored in the memory to implement the method of the first aspect or any one of the possible implementations of the first aspect.

[0045] According to a seventh aspect, the present application provides a vehicle, the vehicle including a display adjustment device according to the second aspect or any one of the possible implementations of the second aspect, thereby implementing the method according to the first aspect or any one of the possible implementations of the first aspect.

[0046] According to an eighth aspect, the present application provides a vehicle, the vehicle including a chip according to the sixth aspect and an execution device for implementing the method according to the first aspect or any one of the possible implementations of the first aspect.

[0047] Based on the technical solutions provided in this application, the display adjustment device can obtain the detection information and adjust the position of the display corresponding to the target user based on the face area determined by using the detection information, so that the adjusted position of the display is a position that is easy for the user to see, which can improve the visual effect of the target user and therefore improve the accuracy of adjusting the display position.

[0048] Optionally, the display adjustment device may further improve the accuracy of the adjustment based on a positional relationship between the target user's facial area and a reference area or point, which may be set to a fixed position or may be changeable, and may be determined based on different user postures or based on user history data.

[0049] Optionally, when the detection information includes detection information of a first region and detection information of a second region (where the detection information of the first region is captured before the display is adjusted and the detection information of the second region is captured after the display is adjusted), the display adjustment device may adjust the position of the display based on the distance between the position of the face area that is within the first region and the reference point within the first region being greater than or equal to a threshold, such that the distance between the position of the face area that is within the second region and the reference point within the second region is less than (or equal to) the threshold, further improving the accuracy of the adjustment.

[0050] Optionally, thresholds may be set for the target user, for example, as the target user's past settings, to adjust the display based on the user's personalized settings.

[0051] Optionally, the facial areas of the multiple users may be determined by using the detection information, and the display adjustment device may determine one of the multiple users as a target user based on the facial area of ​​each user and the distance between a reference point in the first area, and the user's first physical movement or pointing movement, thereby further improving the accuracy of adjusting the display for the target user.

[0052] Optionally, the display adjustment device may further improve the accuracy of the display adjustment by flexibly adjusting the position of the display based on at least one of the following parameters: the distance between the first seat section and the second seat section, the tilt angle of the first seat section, the tilt angle of the headrest on which the display is positioned, the length of the backrest of the first seat section, or the length of the headrest.

[0053] Optionally, the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, or a perspective position of the display relative to the target user.

[0054] Optionally, the sensed information is obtained by a visual sensor, the visual sensor including one or more of a camera and a radar.

[0055] Optionally, the area of ​​the target user's face is an eye area of ​​the target user, and adjusting the position of the display based on the eye area of ​​the target user may further improve the accuracy of the display adjustment. [Brief explanation of the drawings]

[0056] [Figure 1] 1 is a schematic diagram of an application scenario according to an embodiment of the present application;

[0057] [Figure 2] FIG. 2 is a schematic diagram of another application scenario according to an embodiment of the present application;

[0058] [Figure 3] 1 is a schematic diagram of a display direction of a display according to an embodiment of the present application;

[0059] [Figure 4] 10 is a schematic diagram of a display direction of another display according to an embodiment of the present application;

[0060] [Figure 5] 10 is a schematic diagram of a display direction of another display according to an embodiment of the present application;

[0061] [Figure 6] 1 is a schematic flowchart of a display adjustment method according to an embodiment of the present application.

[0062] [Figure 7A] FIG. 2 is a schematic diagram of a first image according to an embodiment of the present application.

[0063] [Figure 7B] FIG. 10 is a schematic diagram of another first image according to an embodiment of the present application.

[0064] [Figure 8] FIG. 2 is a schematic diagram of a first parameter according to an embodiment of the present application.

[0065] [Figure 9] FIG. 2 is a schematic diagram of the logic of a PID control method according to an embodiment of the present application.

[0066] [Figure 10] 1 is a schematic diagram of the logic of a display adjustment method according to an embodiment of the present application;

[0067] [Figure 11] 1 is a schematic diagram of the structure of a display adjustment device according to an embodiment of the present application;

[0068] [Figure 12] FIG. 10 is a schematic diagram of the structure of another display adjustment device according to an embodiment of the present application;

[0069] [Figure 13] FIG. 10 is a schematic diagram of the structure of another display adjustment device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0070] This application is primarily applied to adjusting the position of a display located on the back of a front seat, where the position of the display is adjusted based on the position of the target user's face area to improve the visual effect of the adjusted display.

[0071] Scenarios in which the display to be adjusted in the present application is located include, but are not limited to, a vehicle, an airplane, a train, or similar scenarios, and may also include public places such as waiting rooms, hospitals, or movie theaters. This specification does not specifically limit this. Figure 1 illustrates possible application scenarios of the present application by using a vehicle as an example. As shown in Figure 1, adjusting a display on a vehicle is one of the core scenarios of the present invention, but it should not be understood to apply to all scenarios applicable to the present application.

[0072] In this application, "and / or" describes a correspondence between related objects and indicates that three relationships may exist. For example, A and / or B may indicate the following: a is present alone, both A and B are present, and B is present alone, where A and B may be singular or plural. The character " / " generally indicates an "or" relationship between related objects. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of a single item or multiple items. For example, "at least one of a, b, or c" may refer to a, b, c, a and b, a and c, b and c, or a, b, and c, where a, b, and c may be singular or plural.

[0073] The displays described herein may have a display function and be configured to display images, such as photos or videos, to a user. The displays may be located in a position such as a seat back, a wall, a central control console, or a vehicle roof. For example, as shown in FIG. 2, when a display is located in a multi-row seating scenario, the display may be located behind the front seats, and the viewers facing the display are the users seated in the rear seats. In other words, the front of the display faces the users. Additionally, the display may alternatively be located in a position such as a wall in front of the seats, a central control console, or a vehicle roof, and the viewers facing the display are the users seated in the seats. For example, in a single-row seating scenario, the display may be located in a fixture in front of a single seat, or in a multi-row seating scenario, the display may be located in a fixture in front of the front seats. The display may be located directly in front of the seat where the user is seated, or diagonally forward of the seat where the user is seated. This is not specifically limited in the present application.

[0074] Optionally, the display may have an image capturing function. For example, the display may be integrated with or connected to a visual sensor. The visual sensor may be a camera or a radar. The visual sensor may be configured to capture image data. In this application, the image data may be a photograph or video captured by a camera, or a point cloud captured by a radar.

[0075] Optionally, the processor may acquire data captured by an independently disposed visual sensor. The processor may be co-located with the display, or may be located separately from the display and connected via a communication link. The visual sensor may include one or more sensors, such as a radar and a camera. For example, the processor may use an interface circuit to acquire detection information from the visual sensor connected to the processor, determine the position of the user's face based on the detection information, and adjust the position of the display. The processor and the visual sensor may be connected via a wired or wireless link. This is not a limitation of the present application.

[0076] In a possible implementation, the display may have a photographing function, or in other words, a device with a photographing function is built into the display. Alternatively, the display is connected to a device with a photographing function. The photographing function is, for example, a function for taking pictures or taking videos. The device with a photographing function is, for example, a camera, a camera module, or a camera driver module. In this application, an example in which the device with a photographing function is a camera is used for explanation.

[0077] Specifically, the camera can be built into the display or can be connected to the camera to support the shooting function. When the display is connected to the camera, it is necessary to ensure that the positions of the display and the camera are relatively fixed. In other words, the display and the camera are connected in a hard-connected manner. In addition, it is further necessary to ensure that the display's viewing direction is consistent with the camera's shooting direction. In this application, the camera's shooting direction is a direction perpendicular to the camera's optical element and facing the shooting object.

[0078] In another possible implementation, the display may have a radar scanning function, or a device with a radar scanning function may be built into the display. Alternatively, the display may be connected to a device with a radar scanning function. The radar scanning function is, for example, a function for acquiring point cloud information through scanning. The point cloud information may include three-dimensional model data or image data within the radar scanning range and may reflect the position information of an object in three directions, i.e., the x-axis, the y-axis, and the z-axis. Therefore, referring to face recognition technology, the position of the user's face area within the point cloud in three directions, i.e., the x-axis, the y-axis, and the z-axis, may be acquired. The device with radar scanning function is, for example, a radar (including, but not limited to, a laser radar, an ultrasonic radar, or a millimeter-wave radar), a radar module, or a radar system. In this application, it may be ensured that the display direction of the display coincides with the scanning direction of the radar, or in other words, the radar may scan the direction in which the user is positioned. For example, the scanning direction of the radar on the backrest of the first seat may face the direction of the second seat in which the user is positioned.

[0079] Additionally, in this application, the position of the display includes at least one of the viewing direction of the display, the horizontal direction of the display relative to the user, or the vertical direction of the display relative to the user.

[0080] It should be understood that the display direction of a display is a direction perpendicular to the display and facing the user. The display direction can be divided into a vertical display direction and a horizontal display direction. FIG. 3 is used as an example. The display can be projected onto a plane directly in front of the seat where the user is positioned to obtain a side view of the display. The vertical display direction can be understood as a direction perpendicular to the projection of the display on the plane in FIG. 3 where the x-axis and y-axis are positioned and facing the seat where the user is positioned. In FIG. 3, a tilt angle can be used to represent the display direction in the vertical direction. In addition, the display can be further projected onto a plane in which the x-axis and z-axis are positioned. The x-axis is the x-axis shown in FIG. 3, and the z-axis is perpendicular to the x-axis and y-axis shown in FIG. 3. In this case, the horizontal display direction can be understood as a direction perpendicular to the projection of the display on the plane in which the x-axis and z-axis are positioned and facing the seat where the user is positioned.

[0081] In a vehicle-like scenario, the position of the rear seat is relatively fixed and typically does not move in the horizontal direction of the seat. Therefore, the display orientation in the horizontal direction may be fixed. For example, as shown in FIG. 2, the display is disposed on the back of the front seat 1, and the horizontal rotation of the display is limited. As a result, the display orientation in the horizontal direction is always the display orientation in the horizontal direction that is easy for the user to view and is shown in FIG. 2. Therefore, when the display orientation in the horizontal direction does not need to be adjusted, the present application may be applied to solve the problem of the accuracy of adjusting the display orientation in the vertical direction.

[0082] In addition, in some other scenarios, the method provided herein can be appropriately modified so that the method can be applied to solve the problem of the accuracy of adjusting the display orientation in the horizontal direction. For example, a rear seat position where a user is positioned is shown in FIG. 2, and the display is disposed on the backrest of front seat 2. Alternatively, the user is positioned in the rear seat area directly behind front seat 2, and the display is disposed on the backrest of front seat 1. Alternatively, the user is positioned in the middle area of ​​the rear seat, and the display is disposed on the backrest of front seat 1 or front seat 2. Therefore, the display orientation in the horizontal and vertical directions needs to be adjusted so that the display orientation is easy for the user to see.

[0083] It should be understood that in the following, the vertical direction is used as an example to describe the manner of adjusting the display orientation, and for the manner of adjusting the display orientation in the horizontal direction, please refer to the manner of adjusting the display orientation in the vertical direction.

[0084] It should be understood that in this application, the viewing direction of the display in the vertical direction can be adjusted by increasing or decreasing the tilt angle of the display. FIG. 3 is still used as an example, and the tilt angle is the included angle between the display in side view and the horizontal direction (i.e., the x direction shown in FIG. 3), and is represented as angle a. It should be understood that in the coordinate system shown in FIG. 3, when the display is rotated counterclockwise, the tilt angle of the display increases, and as a result, the viewing direction of the display in the vertical direction can be higher. When the display is rotated clockwise, the tilt angle of the display decreases, and as a result, the viewing direction of the display in the vertical direction can be lower.

[0085] In this specification, the subject of adjusting the display orientation will be described with reference to the scenario shown in FIG. 4. In FIG. 4, the display is disposed behind the headrest of the front seat, and the user is positioned in the rear seat. When the display orientation of the display falls within a range of display orientations that are easy for the user to see (hereinafter referred to as a preferred range), the user's visual effect will be better. The vertical display orientation is used as an example. If the vertical display orientation of the display falls within the range of vertical display orientations that are easy for the user to see, the vertical display orientation does not need to be adjusted. If the vertical display orientation of the display does not fall within the preferred range, the vertical display orientation needs to be adjusted so that the vertical display orientation falls within the preferred range, as shown in FIG. 5. The preferred range is represented by a sector area in FIGS. 4 and 5. It should be understood that the preferred range may be related to the user's height and sitting posture. Therefore, the preferred range may vary from user to user.

[0086] As shown in FIG. 4 , if the display orientation in the vertical direction is low for the user, i.e., if the display orientation is lower than the lower limit of the preferred range shown in FIG. 4 , in this case, the user needs to adjust their sitting posture to move their head downward to obtain a better viewing experience. In this case, the tilt angle of the display may be increased. In other words, the display is rotated counterclockwise. If the display orientation in the vertical direction is high for the user, i.e., if the display orientation is higher than the upper limit of the preferred range shown in FIG. 4 , the user needs to adjust their sitting posture to move their head upward to obtain a better viewing experience. In this case, the tilt angle of the display may be decreased. In other words, the display is rotated clockwise. If the display orientation in the vertical direction is low for the user, i.e., if the display orientation is lower than the preferred range shown in FIG. 4 , the user needs to adjust their sitting posture to move their head downward to obtain a better viewing experience. In this case, the tilt angle of the display may be increased. In other words, the display is rotated counterclockwise.

[0087] It should be understood that the preferred range is at least related to the height of the user's head when the user is sitting in the seat. In other words, the preferred range may be different when the user's height is different or when the user's sitting posture is different. In addition, the preferred range is further related to the height of the display. For example, when the display is disposed in the front seat, the preferred range is further related to factors such as the length of the backrest of the front seat where the display is located, the tilt angle of the seatback, and the height and tilt angle of the display on the seatback.

[0088] Similar to the display orientation, the horizontal and vertical positions of the display relative to the user (hereinafter referred to as the horizontal and vertical positions of the display for short) can also affect the user's viewing experience. Figure 3 is used as an example. The horizontal position is the position of the display in the direction of the z-axis (not shown), which is perpendicular to the x-axis and y-axis, and the vertical position is the position of the display in the direction of the y-axis. Therefore, in some cases, the horizontal and vertical positions of the display need to be adjusted to improve the user's viewing experience.

[0089] In the following, the display direction modulation method is used as an example to explain the problems that exist in the current display position adjustment method. Currently, the most commonly used means for adjusting the display direction are manual adjustment or partial electrical adjustment in manual and electrical methods. These methods need to be performed under manual control, and therefore have the problem of low adjustment precision. Therefore, the user's visual requirements cannot be met well.

[0090] In order to improve the accuracy of adjusting the position of the display, an embodiment of the present application provides a display adjustment method, which can be implemented by a display position adjustment device, hereinafter referred to as adjustment device for short.

[0091] For example, as shown in FIG. 1 , the adjustment device may be used as a connection between the headrest and the display, and may be configured to secure the display to the back of the headrest. In other examples, there may be other connections between the adjustment device and the display. For example, the adjustment device may be used as an internal module or component of the display, or the adjustment device may be connected to the display in a wired or wireless manner. This is not specifically required in the present application.

[0092] The adjustment device and the display to be adjusted may be arranged in a system scenario. For example, if the display to be adjusted is located in a vehicle, the adjustment device may also be arranged in the vehicle. For example, the adjustment device may be implemented by a central control system or multimedia system of the vehicle. In addition, the adjustment device may alternatively be arranged separately from the display to be adjusted. For example, the adjustment device supports adjusting the display orientation in a remote control manner.

[0093] In this application, the adjustment device refers to an electronic device that supports the display adjustment function, and may be the entire electronic device or some components within the electronic device, such as a chip related to the display adjustment function, such as a system chip or an image chip. The system chip may alternatively be referred to as an SoC or an SoC chip. Specifically, the display adjustment device may be a terminal device or an in-vehicle device such as an in-vehicle computer or a head unit in a vehicle, or may be a system chip, an image chip, or another type of chip that can be disposed in a computer system in a vehicle or an in-vehicle device, or may be a server (e.g., a cloud server) or a chip within a server. The display adjustment device may alternatively be abstracted as a computer system.

[0094] For example, the adjustment device may be a terminal device, and the terminal device may provide at least the following functions: acquiring detection information and adjusting the position of the display based on the position of the face area indicated by the detection information.

[0095] In the present application, the detection information may be obtained from a visual sensor. The detection information may be, for example, image information or point cloud information captured by the visual sensor, or information captured by the visual sensor and processed by the visual sensor. For example, the visual sensor may be a camera, and the detection information may be photo (or video) information captured by the camera, or other information obtained by analyzing the photo information, such as location information of a user's face area obtained by analyzing the photo information. In another example, the visual sensor may be a radar, and the detection information may be a point cloud captured by the radar, or information obtained by analyzing the point cloud, such as location information of a user's face area obtained by analyzing the point cloud information. It should be understood that the visual sensor may alternatively be a device such as an ultrasonic sensor.

[0096] In this application, the adjustment device and the visual sensor may be arranged in a separate manner, and the position of the display may be adjusted based on communication between the adjustment device and the visual sensor. Alternatively, the adjustment device and the visual sensor may be integrated, and the adjustment device may read the detection information to implement the position adjustment of the display. In this application, A and B being integrated may mean that A and B are connected in a hard-connected manner. Specifically, when the position of A changes, the position of B changes, and the position change manner of A is consistent with the position change manner of B, and the position change amplitude of A is consistent with the position change amplitude of B.

[0097] Hereinafter, the present application will be described with reference to the display adjustment method provided in the embodiment of the present application.

[0098] As shown in FIG. 6, the display adjustment method provided in the embodiment of the present application may include the following steps:

[0099] S101: Obtain sensing information, where the sensing information is used to determine the facial area of ​​the target user.

[0100] As described above, the sensed information may be image data captured by a visual sensor such as a camera or radar, or may be information obtained after processing, such as analysis, performed on the image data. For example, if the visual sensor is a camera, the image data may be photographs, videos, or similar data types. If the visual sensor is a radar, the image data may be point cloud information.

[0101] In S101, the adjustment device may identify the facial area of ​​the target user, or the detection information may include location information of the facial area of ​​the target user. For example, the detection information may be a photo taken by a camera, and the facial area in the photo may be extracted through an edge detection algorithm or a similar method.

[0102] It should be understood that a target user is a viewer of the display. For example, when the display is positioned in the front seat, the target user may be one of the users in the back seat. For example, there may be multiple users in the back seat shown in FIG. 2, and the target user may be one of the multiple users.

[0103] Optionally, when the image data captured by the visual sensor includes facial areas of multiple users, the coordinator may be further configured to determine a target user from the multiple users. In other words, the coordinator may be further configured to determine facial areas of the multiple users based on the detection information, and determine a facial area of ​​the target user from the facial areas of the multiple users, or determine a target user from the multiple users.

[0104] In a method for determining a target user, when the detection information includes detection information of a first region, the target user can be determined from the plurality of users based on the distance between the facial areas of the plurality of users and a reference point within the first region. The first region can be a region of image data captured by a visual sensor or a partial region of the image data. For example, when the visual sensor is a camera, the first region can include the entire pixel region of a photograph captured by the camera. In addition, the reference point in this application can be a specific pixel within the first region, such as a central pixel or a pixel at a vertex position within the first region. This is not specifically limited.

[0105] For example, a user whose face area is closest to a reference point in the first region may be selected as the target user, or a user whose face area is the shortest distance from a reference point in the first region is determined as the target user.

[0106] In another possible manner of determining a target user, a user among a plurality of users and having a first physical motion is determined as the target user, where the first physical motion is, for example, a gesture or motion such as raising a hand, nodding, pulling left, or pulling right. The first physical motion may be acquired by using a visual sensor such as a camera, radar, or ultrasonic sensor. In this specification, an example in which a gesture made by a user is captured using a camera is used to explain a manner of identifying the first physical motion. The camera may capture multiple consecutive frames of images, and position change features of the characteristic pixels in the multiple frames of images are determined by identifying characteristic pixels in the images. For example, the characteristic pixels are edge images of the user's fingers, palm, or face acquired by using an edge detection algorithm. If the position change features satisfy a predetermined feature, the meaning of the mid-air gesture operation may be determined to be the predetermined meaning corresponding to the feature. For example, the characteristic pixels include edge images of the user's fingers and palm. In multiple frames of the image, the edge images of the user's fingers and palm exhibit a downward-to-upward movement trend over time. In this case, the gesture performed by the user can be identified as a hand raise, and the user who performed the hand raise action can further be determined as the target user. For example, the user whose face area is closest to the edge images of the fingers and palm is determined as the target user.

[0107] Optionally, the first physical action may be performed by the target user based on information output by the adjustment device, for example, the adjustment device may prompt the target user to perform the first physical action via a speaker, a display, and / or in a similar manner to facilitate identification of the target user among multiple users.

[0108] Yet another possible manner of determining the target user is as follows: determining one of the multiple users as the target user in response to a user's pointing action, where the pointing action is, for example, a touch operation, such as touch, tap, slide, or press, performed by the user on the display. For example, after the multiple users' face areas are identified, the display displays the multiple users' face areas and detects the user's touch operation on the user's face area. If the touch operation is detected on the user's face area, the user is used as the target user, and the user's face area is the target user's face area.

[0109] Alternatively, the instruction action may include a user's button trigger operation, such as a tap or double-tap operation. For example, identified facial areas of multiple users may be displayed on a display, and the facial areas of the multiple users may be identified by using identifiers such as virtual icons, text, or numbers. Then, a button trigger operation performed by a user and corresponding to the virtual icon, text, or number on the display is detected, and the facial area corresponding to the button on which the trigger operation occurred is used as the facial area of ​​the target user. Each button may correspond to an area of ​​the user's face. For example, each button includes a virtual icon, text, or number corresponding to an area of ​​the user's face. When it is detected that a user triggers an operation on a button, the user to which the facial area corresponding to the button belongs is used as the target user. The button in this specification may be a virtual button on the display or a physical button. This is not particularly limited.

[0110] S102: Adjust the position of the display corresponding to the target user based on the position of the target user's face area.

[0111] The display corresponding to the target user is the display being viewed by the target user. For example, the above description describes a method for determining the target user when an image captured by a display includes facial areas of multiple users. Similarly, in the present application, in a scenario where multiple displays exist, each display may determine the target user by using a similar method, i.e., determine the correspondence between the target user and the display, so that the position of the display corresponding to the target user may be adjusted based on the position of the target area of ​​the target user. In addition, if there is only one display in the driver's seat (or in another scenario), that display is the display corresponding to the target user.

[0112] For example, the adjustment device may adjust the position of the display based on the location of the target user's facial area in the first image.

[0113] According to the aforementioned method, the position of the display can be adjusted based on the position of the target user's facial area, so that the adjusted position of the display is easier for the user to see and improves the visual effect of the target user.

[0114] Optionally, in S102, the first image is used as an example. When the position of the display is adjusted based on the face area of ​​the target user, the adjustment device may extract the human eye area in the image acquired through shooting through an edge detection algorithm or in a similar manner, and adjust the display based on the human eye area, thereby improving the accuracy of the display adjustment.

[0115] In a possible example of S102, the adjustment device may determine the facial area of ​​the target user based on the detection information, and when it determines that the distance between the facial area of ​​the target user and the reference point exceeds (or is greater than, equal to, or not lower than) a threshold, adjust the position of the display so that the distance between the adjusted position of the facial area and the position of the reference point does not exceed (or is less than, equal to, or not greater than) the threshold.

[0116] Specifically, when the detection information includes detection information for a first region and detection information for a second region, as described above, the first region may be a region of image data captured by a visual sensor or a region of a portion of the image data. The second region is similar to the first region, with the difference being that the first region and the second region have different capture times. The detection information for the first region may be a region captured before the display is adjusted, and the second region may be a region captured after the display is adjusted. In this case, when the distance between the facial area and the reference point in the first image exceeds a threshold, the position of the display may be adjusted so that, in the second region, the distance between the facial area of ​​the target user and the reference point in the second region does not exceed the threshold. In addition, for the method of setting the reference point, see the above description. The position of the reference point in the first region is the same as the position of the reference point in the second region. For example, the reference point in the first region is the center pixel of the first region, and the reference point in the second region is the center pixel of the second region. The first region and the second region may be images of the target user captured by the same visual sensor.

[0117] It should be understood that when the distance between the area of ​​the target user's face and the reference point in the image captured by the visual sensor (including the first area and / or the second area) does not exceed a threshold, the position of the display may be considered to belong to the suitable range. In other words, when the distance between the area of ​​the target user's face and the reference point in the image captured by the visual sensor exceeds a threshold, the position of the display may be considered not to belong to the suitable range, and the position of the display needs to be adjusted.

[0118] Optionally, after the target region is determined based on the sensing information, the position of the display may be adjusted when the position of the facial area exceeds the reference region of the first region, so that the adjusted position of the facial area is located in the reference region of the second region. Similar to the reference point, the position of the reference region in the first region is the same as the position of the reference region in the second region. Optionally, when both the reference point and the reference region exist, the position of the reference region may include the position of the reference point, or the reference point is located inside the reference region.

[0119] The reference area may be an area where the target user can comfortably view the display with the human eye. For example, if the target area is located in the reference area, the position of the display may be considered to be within a suitable range. In other words, when the position of the face area exceeds the reference area, the position of the display is adjusted so that the adjusted position of the face area is within the reference area.

[0120] In the following, to facilitate understanding of the present application, an example is used to describe a possible scheme for adjusting the display position based on the target user's facial area.

[0121] Method 1: The distance between the target user's face area and the reference point in the first image is represented by the distance between the center pixel of the target user's face area (or eye area) and the reference point.

[0122] 7A is used as an example. The reference point is assumed to be the center pixel of the image captured by the camera, and the coordinates of the center pixel are shown as (m0, n0). The adjustment device can identify the user's face area, determine the value relationship between the distance between the face area and the reference point, and the threshold, and determine whether the position of the display needs to be adjusted. If the distance between the center pixel of the eye area and the center pixel of the first image is used as the distance between the face area and the reference point, for example, the coordinates of the center pixel of the eye area are determined as (m1, n1), and the distance between the pixel and the center pixel in the first image is

number

[0123] For example, in one adjustment method, the display orientation of the display is adjusted so that the distance between the central pixel of the eye area and the central pixel of the first image becomes shorter. FIG. 7A is used as an example. When m1 is greater than m0, the tilt angle of the display may be large. Conversely, when m1 is smaller than m0, the tilt angle of the display may be small. When n1 is greater than n0, the display angle in the horizontal direction may be rotated to the right. Conversely, when n1 is smaller than n0, the display angle in the horizontal direction may be rotated to the left. Left and right are described for reference by using the display orientation when the first image was captured.

[0124] In addition, the horizontal and / or vertical position of the display may be adjusted so that the distance between the central pixel of the eye area and the central pixel of the first image is shorter. FIG. 7A is used as an example. When m1 is greater than m0, the display can be moved along the direction of decreasing x-axis values ​​shown in FIG. 7A. When m1 is less than m0, the display can be moved along the direction of increasing x-axis values ​​shown in FIG. 7A. When n1 is greater than n0, the display can be moved along the direction of increasing y-axis values ​​as shown in FIG. 7A. On the other hand, when n1 is less than n0, the display can be moved along the direction of decreasing y-axis values ​​as shown in FIG. 7A.

[0125] Method 2: The distance between the target user's face area and the reference point in the first image is represented by the distance between the target user's face area (or eye area) and the reference region in the first image.

[0126] 7B is used as an example. The reference point is the center pixel of the first image, the reference area in the first image includes the reference point, the shape of the reference area is rectangular, the center pixel of the rectangle is the center pixel of the first image, and the vertical coordinate of the pixel in the reference area belongs to the range of [x1, x2]. The adjustment device can identify the user's face area, determine the distance between the face area and the reference area, and determine whether the display orientation of the display in the vertical direction needs to be adjusted based on the value relationship between the distance and a threshold. The eye area is used as an example. The vertical coordinate of the center pixel of the eye area is x0, and the distance between the pixel and the range of the vertical coordinate of the pixel in the reference area is

number

[0127] For example, in one adjustment scheme, the viewing direction of the display is adjusted so that the distance between the vertical coordinate of the center pixel of the eye area and the reference region becomes shorter. 7B is used as an example. If x1 is smaller than x0, the tilt angle of the display may be large; or if x2 is larger than x0, the tilt angle of the display may be small.

[0128] In addition, the position of the display may be adjusted so that the distance between the central pixel of the eye area and the central pixel of the first image is shorter. Figure 7B is used as an example. If x1 is smaller than x0, the display may be moved along the direction of increasing values ​​on the x-axis shown in Figure 7B; or if x2 is larger than x0, the display may be moved along the direction of decreasing values ​​on the x-axis shown in Figure 7B.

[0129] Similarly, in Method 2, whether the display orientation and / or horizontal position of the display in the horizontal direction needs to be adjusted can be determined based on the horizontal coordinate range of the reference area and the position of the face area in the first image. If necessary, the display orientation in the horizontal direction can be adjusted by referring to the adjustment method for adjusting the vertical direction of the display.

[0130] Method 3: The position of the display is adjusted based on the positional relationship between the target user's face area and the reference area, so that the adjusted target area is within the reference area. The reference area may be the reference area in the first image.

[0131] For example, the detection information may include detection information of a first region and detection information of a second region. As described above, the detection information of the first region may be an area imaged before the display is adjusted, and the detection information of the second region may be an area imaged after the display is adjusted. If the target user's facial area in the first region is outside the reference region of the first region, the adjustment device may adjust the position of the display so that the target user's facial area in the second region is within the reference region of the second region.

[0132] The reference area may be an area where the target user can comfortably view the display with the human eye. Using the first area as an example, the reference area may be a central area of ​​the first area. The size and shape of the reference area may be set. For example, the shape of the reference area may be circular, rectangular, square, or irregular. Optionally, the size and shape of the reference area may be set based on the size and shape of the first image.

[0133] Optionally, the locations of the reference regions and / or reference points herein may be determined empirically.

[0134] Optionally, in Methods 1 to 3, when adjusting the position of the display, the adjustment device may adjust the display's viewing direction based on a specific angle (e.g., adjust by one degree (or another value) each time) and / or adjust the horizontal and / or vertical position of the display based on specific steps. Alternatively, the adjustment device may adjust the display's position based on a difference between a distance and a threshold. For example, a correspondence between the difference between the distance and the threshold and the adjustment angle in the viewing direction may be set, and the adjustment device determines the adjustment angle of the display in the viewing direction based on the difference between the distance and the threshold; and / or a correspondence between the difference between the distance and the threshold and the adjustment angle in the viewing direction may be set, and the adjustment device determines the adjustment step value of the display's horizontal and / or vertical position based on the difference between the distance and the threshold. The difference between the distance and the threshold is positively correlated with the adjustment angle or step value to improve adjustment efficiency.

[0135] After the position of the display is adjusted, the visual sensor may capture the image data again and repeat the above-described adjustment method. In other words, after the position is adjusted, S101 to S102 may be repeated until after at least one adjustment, and the user's eye area in the second image captured by the visual sensor is positioned within the reference area of ​​the image captured by the visual sensor.

[0136] The above describes the implementation of adjusting the display position based on the target user's facial area in Method 1 and Method 2. In actual use, it should not be understood that the implementation of adjusting the display position based on the target user's facial area is limited to the above examples.

[0137] In addition, at least one of the reference point, threshold, and size, shape, or position of the reference area in this application may be associated with a target user. In other words, at least one of the reference point, threshold, and size, shape, or position of the reference area may have different values ​​when different target users are involved. For ease of explanation, at least one of the reference point, threshold, and size, shape, or position of the reference area may be referred to as a user parameter hereinafter.

[0138] For example, the user parameters may relate to user information (also referred to as user's information), such as a user account, a facial area image, an identifier, a mobile phone number, or a vehicle infotainment account.

[0139] For example, the adjustment device may store or retrieve a binding relationship (also called a mapping relationship or correspondence relationship) between user parameters and user information from a server (e.g., a cloud server) and search for user information that is bound to the user information of a target user when determining whether the display needs to be adjusted.

[0140] In the following, an example is used to explain how to obtain the binding relationship between the user parameters and the user information.

[0141] Optionally, in the case of user information, the target user may input the user information to the coordinating device or server by using the display or another input device before or during the process of viewing the display. Alternatively, the visual sensor may capture image data including the area of ​​the user's face, and the image data of the area of ​​the user's face may be used as the user information.

[0142] In the case of user parameters, the target user may further change the position of the display in the manner of manually adjusting the display. In this case, the adjustment device or server may determine the user parameters of the target user based on the position of the display manually adjusted by the user, so that a binding relationship between the target user's user information and the user parameters may be obtained. For example, after the target user last adjusts the display and / or the display starts playing a multimedia file such as audio and video, image data is captured by using a visual sensor, the position of the target user's facial area in the image is determined, the center position of the target user's facial area in the image is used as a reference point, and / or the reference region is determined based on the adjusted position of the target user's facial area. In addition, optionally, the user may input user parameters to the adjustment device or server by using the display or another input device.

[0143] If the adjustment device determines that the adjustment device or server stores user parameters associated with information about the target user, the adjustment device may determine whether the position of the display needs to be adjusted based on the user parameters. For example, the user parameters include coordinates of a reference point and a threshold value. After determining the coordinates of the reference point associated with the target user, the adjustment device, in Method 1, determines the distance between the target user's facial area in the first region and the reference point in the first region based on the coordinates, and determines whether the position of the display needs to be adjusted based on the value relationship between the distance and the threshold value. If necessary, the position of the display is adjusted so that the distance between the target user's facial area in the second image of the adjusted second region is less than or equal to the threshold value.

[0144] If the adjustment device determines that the adjustment device or server does not store user parameters associated with information about the target user, default user parameters may be used to determine whether the display position needs to be adjusted. If necessary, the display position may be adjusted based on the default user parameters. For example, in the default user parameters, the reference point is the center pixel of the image captured by the visual sensor, and parameters such as the threshold value and the size, shape, or position of the reference area are all preset values.

[0145] In a possible example, in the method provided in the embodiment of the present application, the adjustment device may further adjust the position of the display based on a first parameter, wherein the first parameter includes at least one of the following parameters: a distance between a first seat section where the display is positioned and a second seat section where the target user is positioned, a tilt angle of the first seat section, a tilt angle of a headrest where the display is positioned, a length of a backrest of the first seat section, or a length of a headrest where the display is positioned, wherein the headrest is positioned in the first seat section.

[0146] Optionally, adjusting the position of the display based on the first parameter may be performed after a position or attitude of a first seat section where the display is positioned and / or a second seat section where the target user is positioned is adjusted. Thus, the position of the display may be adjusted based on changes in left-right position and attitude to improve the viewing experience. Adjusting the position of the first seat section and / or the second seat section where the target user is positioned may cause a change in the distance between the first seat section and the second seat section, and adjusting the attitude of the first seat section may cause a change in at least one of the tilt angle of the first seat section, the tilt angle of the headrest where the display is positioned, the length of the backrest of the first seat section, or the length of the headrest where the display is positioned.

[0147] It should be understood that the steps of adjusting the position of the display based on the first transmission and adjusting the position of the display based on the position of the target user's face area in the first image shown in Fig. 6 may be implemented separately or in a combined manner. For example, in the present application, the position of the display may be adjusted at least once based on the first parameter, and the position of the display may be adjusted at least once based on the position of the target user's face area in the first image, thereby further improving the accuracy of the adjustment of the display position and providing a better viewing experience.

[0148] 8, a method for adjusting the tilt angle of the display (i.e., the display direction in the vertical direction) based on the first parameter will be described below. It should be understood that the step of adjusting the display direction angle in the horizontal direction, the horizontal position, or the vertical position based on the first parameter may refer to the implementation.

[0149] 8, the first seat section where the display is positioned and the second seat section where the user is positioned are positioned in the same coordinate system, the position of the second seat section is the origin of the coordinates, and the first seat section and the second seat section can be positioned on the x-axis. In addition, in Fig. 8, a represents the length of the first seat section, α represents the tilt angle of the first seat section, b represents the length of the headrest where the display on the first seat section is positioned, β represents the tilt angle of the headrest, k is the distance between the first seat section and the second seat section, and h is the height (i.e., vertical coordinate) of the center position of the region of interest, where a and / or b can be set to fixed values.

[0150] h may be the center position of the region of interest. The meaning of the region of interest is that the tilt angle of the display is controlled so that when a vertical line perpendicular to the center point of the display overlaps with the region of interest, the tilt angle of the display may be determined to be most viewable for most users. The position of the region of interest may be determined based on the size (including height and width) of the region of interest and h, where the size of the region of interest may be a specific value. h may be a specified value or may be determined based on values ​​such as the height of the first seat section, the height of the second seat section, or the average height of users.

[0151] For example, if h is the height of the first seat section, h satisfies the following equation: h=a*sin α

[0152] It should be understood that the region of interest determined according to the above method may generally represent a comfortable viewing position for a user, as comfortable viewing positions may vary from user to user due to changes in the user's height and sitting posture.

[0153] For example, according to FIG. 8, the adjustment device may determine the coordinates (m,n) of the center point of the display in the coordinate system, where (m,n) satisfies the following equation:

number

[0154] In Equation 1, for ease of calculation, the display is set to be positioned at half the length of the headrest of the first seat section.

[0155] Furthermore, for ease of calculation, a vertical line of the center point of the display that passes through the center position of the region of interest can be used as the adjustment target to determine the tilt angle of the display that needs to be adjusted. In this application, the vertical line of the display is a ray that is perpendicular to the display and facing the direction of the user, or a ray that is perpendicular to the front surface of the display.

[0156] For example, the tilt angle of the display is adjusted based on the angle γ between the display and the horizontal direction when it is determined according to Equation 1 that the vertical line of the center point of the display passes through the center point of the region of interest. In this case, the angle γ indicates the included angle between the vertical line and the horizontal direction when the vertical line of the center point of the display passes through the center point of the region of interest. γ may satisfy the following equation: γ=arctan[(nh) / m] (Equation 2)

[0157] m and n are the horizontal and vertical coordinates of the center point of the display, respectively, and the values ​​of m and n may be determined according to Equation 1.

[0158] When the tilt angle of the display is adjusted based on the angle γ, the adjustment device may determine a first target angle θ and subsequently adjust the angle between the vertical and horizontal directions of the display to the first target angle θ. The first target angle θ may alternatively be referred to as an expected angle.

[0159] For example, θ may satisfy the following equation: γ = 180° - θ - γ (Equation 3)

[0160] Optionally, in Formula 2, an example in which the vertical line of the center point of the display passes through the center point of the area of ​​interest is used in the calculation to determine the angle γ. The present application does not exclude that in actual adjustment, another reference point other than the center point of the area of ​​interest is selected, for example, based on the vertical coordinate of the reference point on the y-axis being h', where h-h0≦h'≦h+h0, and the height of the area of ​​interest is 2*h0. In this case, the angle γ' is determined and may indicate the included angle between the vertical line and the horizontal direction when the vertical line of the center point of the display passes through the reference point. For example, γ' may satisfy the following formula: γ'=arctan[(n-h') / m] (Equation 4)

[0161] When the first target angle θ is determined based on the angle γ′, γ in Equation 3 can be replaced with γ′.

[0162] Optionally, the adjustment device in this application may adjust the tilt angle of the display based on the first target angle θ by using a proportional integral differential (PID) algorithm. Specifically, the angle difference error=θ-θ′ may be used as an input to the PID algorithm, and the included angle between the vertical and horizontal directions of the display is adjusted through closed-loop control. θ′ is the included angle between the vertical and horizontal directions of the center point of the display before adjustment (hereinafter referred to as the current angle for short).

[0163] The processing logic of the PID algorithm is shown in FIG. 9. The adjustment device may be connected to a motor (also referred to as a drive motor) or may include a motor, which may be configured to adjust the position of the display. In each round of adjustment, the adjustment device may determine a first target angle θ (i.e., the predicted angle shown in FIG. 9) based on the first parameter, determine an angle difference based on the current angle θ′ before this round of adjustment and the first target angle, and use the angle difference as an input to the PID algorithm. The PID controller controls the motor using the PID algorithm to adjust the tilt angle of the display and updates the current angle based on the adjustment result. The above steps are then repeated in the next round of adjustment. In any round of adjustment, an angle difference may be determined based on the first target angle after the previous round of adjustment and the current angle, and the angle difference is used as an input to perform PID control.

[0164] As shown in FIG. 10 , a micro control unit (MCU) in the adjusting device may alternatively be used to obtain the button control result, i.e., obtain the first parameter, determine the predicted angle based on the current angle and the first parameter, perform PID control based on the angle difference between the current angle and the predicted angle, and control the motor for driving the tilt angle of the display to be adjusted based on the PID control result by using the motor control signal.

[0165] Based on the above content and the same concept, the present application further provides an adjustment device configured to implement the function of adjusting the display position in the display adjustment method described in the above method embodiment. Therefore, the adjustment device has the beneficial effects of the above method embodiment. The adjustment device may include any of the structures in Figures 11 to 13, or may be implemented by a combination of any of the structures in Figures 11 to 13.

[0166] For example, FIG. 11 is a schematic diagram of a possible coordination device structure. The structure may include a processing module 1110 and an input / output module 1120. For example, the structure shown in FIG. 11 may be a terminal device or a functional component having the coordination device described herein. When the structure is a terminal device or another electronic device, the input / output module 1120 may include a visual sensor and may further include a device configured to support human-computer interaction functions (also referred to as a human-computer interaction device), such as a touchscreen, a speaker, or a microphone, and a transceiver supporting wired and / or wireless communication of the coordination device. Alternatively, the input / output module 1120 may support communication with a device configured to support human-computer interaction functions or communication functions, such as a visual sensor, a touchscreen, a camera, a speaker, or a microphone. For example, the input / output module 1120 is a communication interface. The processing module 1110 may be a processor, such as a central processing unit (CPU). When the structure is a functional component of the coordination device described herein, the input / output module 1120 may be an interface circuit configured to communicate with a device configured to support human-computer interaction functions, such as a touchscreen, a visual sensor, a radar, or a speaker-sensing microphone. The processing module 1110 may be a processor. When the structure is a chip or a chip system, the input / output module 1120 may be an input / output interface of the chip, and the processing module 1110 may be a processor of the chip and may include one or more central processing units. It should be understood that the processing module 1110 in the embodiments of the present application may be implemented by a processor or processor-related circuit components, and the input / output module 1120 may be implemented by a transceiver, a device configured to support human-computer interaction functions, or related circuit components.

[0167] It should be understood that the input / output module 1120 may be a functional module, and a functional module may complete both an output operation and an input operation. The process of receiving and transmitting information is used as an example, and when a transmitting operation is performed, the input / output module 1120 may be considered as a transmitting module, and when a receiving operation is performed, the input / output module 1120 may be considered as a receiving module. Alternatively, the input / output module 1120 may include two functional modules. The input / output module 1120 may be considered as a collective term for the two functional modules. The two functional modules are a transmitting module and a receiving module, and the transmitting module is configured to complete the transmitting operation.

[0168] The adjustment device shown in Fig. 11 may be a terminal or a vehicle, or may be a chip in the terminal or the vehicle. The adjustment device may implement the display adjustment method shown in Fig. 6 and the above-mentioned optional embodiments. The adjustment device may include a processing module 1110 and an input / output module 1120.

[0169] The processing module 1110 may be configured to perform S102 in the method shown in Figure 6, or may be configured to perform any one of the steps related to target region identification, target user identification, obtaining first parameters, calculating predicted angle, obtaining current angle, adjusting display, etc. in the optional embodiments described above. The input / output module 1120 may be configured to perform S101 in the method shown in Figure 6, or may be configured to perform any step related to imaging and / or human-computer interaction in the optional embodiments described above.

[0170] When performing the step indicated in S101, the input / output module 1120 may be configured to acquire sensing information, where the sensing information is used to determine the facial area of ​​the target user. When performing the step indicated in S102, the processing module 1110 may be configured to adjust the position of the display corresponding to the target user based on the position of the facial area of ​​the target user.

[0171] Specifically, when the position of the facial area exceeds the reference region, the processing module 1110 may adjust the position of the display so that the adjusted position of the facial area is within the reference region.

[0172] Alternatively, when the distance between the position of the facial area and the position of the reference point exceeds a threshold, the processing module 1110 may adjust the position of the display so that the distance between the adjusted position of the facial area and the position of the reference point is less than the threshold.

[0173] The input / output module 1120 may include a visual sensor such as a camera or radar, or may support communication with a visual sensor to receive sensory information from the visual sensor.

[0174] In a possible design, the sensing information may include sensing information of a first region and sensing information of a second region, where the first region is an area imaged before the display is adjusted and the second region is an area imaged after the display is adjusted. For the second region, the processing module 1110 may adjust the position of the display when a distance between a position of the facial area of ​​the target user that is within the first region and a reference point within the first region is greater than or equal to the threshold, such that a distance between the facial area of ​​the target user and a reference point within the second region is less than or equal to the threshold.

[0175] In a possible design, the threshold is pre-configured or corresponds to a target user.

[0176] In a possible design, the input / output module 1120 may be further configured to obtain the threshold value from a server based on the information of the target user, in which case the input / output module 1120 may include a transceiver or a communication interface.

[0177] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the processing module 1110 may determine a target user from the multiple users based on the facial areas of the multiple users and distances between reference points within the first area.

[0178] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the processing module 1110 may determine a user among the multiple users having a first body movement as the target user.

[0179] In a possible design, facial areas of multiple users may be determined based on the first detection information, and the processing module 1110 may determine one of the multiple users as the target user in response to a pointing action of the user.

[0180] In a possible design, the processing module 1110 may further adjust the position of the display based on a first parameter, which includes at least one of a distance between the first seat section and the second seat section, a tilt angle of the first seat section, a tilt angle of a headrest at which the display is positioned, a length of the backrest of the first seat section, or a length of the headrest, where the headrest is positioned at the first seat section.

[0181] In a possible design, the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, or a perspective position of the display relative to the target user.

[0182] In a possible design, the sensed information is obtained by a visual sensor, the visual sensor including one or more of a camera and a radar.

[0183] In a possible design, the area of ​​the target user's face is the target user's eye area, to further improve the accuracy of the display adjustment.

[0184] FIG. 12 is a schematic diagram of the structure of another adjustment device configured to perform the operations performed by the adjustment device according to an embodiment of the present application. The adjustment device may be a terminal or a vehicle, or may be a chip within the terminal or vehicle. As shown in FIG. 12, the adjustment device may include at least one component of a processor, a memory, a communication interface, an input device, or an output device. The processor is primarily configured to implement the processing operations provided in the embodiments of the present application, such as executing a software program to control the adjustment device to implement the display adjustment method provided in the embodiments of the present application. The memory is primarily configured to store software programs and data. The input device may include a visual sensor or a human-computer interaction device such as a microphone or an ultrasonic sensor, and a receiver supporting wired and / or wireless reception of the adjustment device. The input device may be configured to perform operations such as capturing sensing information, capturing gestures, or receiving information from a server according to an embodiment of the present application. The output device may include a display, a speaker, or a transmitter supporting wired and / or wireless transmission of the adjustment device. The output device may be configured to present information to a user. For example, the input device may be configured to prompt a user to perform an action, such as performing a first gesture operation and transmitting information to a server. When the adjustment apparatus does not include an input device and / or an output device, the communication interface may be configured to communicate with the input device and / or the output device.

[0185] For ease of explanation, only one memory and one processor are shown in FIG. 12. In an actual adjustment device product, there may be one or more processors and one or more memories. The memory may alternatively be referred to as a storage medium, a storage device, or the like. The memory may be located independently of the processor or integrated into the processor. The embodiment of the present application is not limited thereto.

[0186] Optionally, the processor may execute the steps of the processing module 1110 shown in FIG. 11, and at least one of the communication interface, input device, or output device implements the steps of the input / output device 1120 shown in FIG. 11.

[0187] It should be understood that a processor can be a chip, for example, a field programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system on a chip (SoC), a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or another integrated chip.

[0188] It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip and have signal processing capabilities. In some implementation processes, the steps in the above-described method embodiments may be implemented by a hardware integrated logic circuit in the processor or by using instructions in the form of software. The processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The processor may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the methods disclosed with reference to the embodiments of the present application may be directly executed and completed by a hardware decoding processor, or may be executed and completed by using a combination of hardware and software modules in the decoding processor. The software modules may be located in storage media mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above-described method in combination with the processor's hardware.

[0189] It will be understood that the memory in the embodiments of the present application may be volatile memory or nonvolatile memory, or may include volatile memory and nonvolatile memory. Nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) used as an external cache. Many types of RAM may be used, such as, for example, static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct Rambus random access memory (direct Rambus RAM, DR RAM), by way of example and not limitation. It should be noted that the memory of the systems and methods described herein includes, but is not limited to, these and any other suitable type of memory.

[0190] Another possible structure of the adjustment device will be described below with reference to the structure shown in Fig. 13. As shown in Fig. 13, the adjustment device may include a display angle control unit and a display unit.

[0191] For example, in this application, the display unit may capture an image of the rear user's face, identify the location of the eye area in the image, and send the image to the display angle control unit, which then adjusts the viewing direction of the display based on the location of the eye area in the image to implement the display adjustment.

[0192] In addition, as shown in Figure 13, the display angle control unit may include an MCU, a seat status sensor, a button operation unit, and a human eye positioning unit. The display unit may include a camera, a display, an attitude adjustment device, a drive motor, and an angle sensor.

[0193] With reference to the structure shown in FIG. 13, the following describes an example of a display position adjustment method provided in the embodiment of the present application.

[0194] Specifically, after the position or attitude of the first seat section where the display is positioned and / or the second seat section where the user is positioned is adjusted, the seat status sensor may input the acquired first seat section parameters of the first seat section and / or the second seat section to the MCU, and the button operation unit may be configured to transmit the second seat section parameters after the first seat section and / or the second seat section are adjusted to the MCU. The first seat section parameters include, but are not limited to, the horizontal position of the first seat section and / or the second seat section, and the horizontal position may be used to determine the distance between the first seat section and the second seat section. The second seat parameters include, but are not limited to, the tilt angle of the seat and / or the tilt angle of the seat headrest. In addition, when the length of the seat and the length of the headrest are adjustable, the seat parameters may further include the length of the seat and / or the length of the headrest. It should be understood that the seat status sensor and the button operation unit may be arranged as a unit, a module, or a physical component.

[0195] The MCU may be configured to determine the expected angle based on the received seat position parameters.

[0196] The attitude adjustment device may be configured to: obtain a predicted angle from the MCU, obtain a current angle from the angle sensor, perform PID control based on a difference between the predicted angle and the current angle, and control the drive motor to adjust the tilt angle of the display based on a PID control result. The attitude adjustment device may include a PID controller or may be connected to a PID controller.

[0197] Next, the camera captures a first image, and the human eye positioning unit performs detection and positioning on the target user's eye area in the first image, determines the position of the eye area in the first image, and transfers the position information to the MCU. The position information may indicate the coordinates of the eye area in the image.

[0198] The MCU then determines whether the position of the display needs to be adjusted based on the position information. If the position of the display needs to be adjusted, the position of the display can be adjusted by the attitude adjustment device or the MCU.

[0199] For the execution of the operations performed by the modules, units, or components in the adjustment device shown in FIG. 13 , please refer to the description in the method embodiment of the present application. It should be understood that in the embodiment of the present application, the module division is an example and is merely a logical functional division. In actual implementation, other division schemes may exist. In addition, the functional modules in the embodiment of the present application may be integrated into one processor, may exist physically alone, or two or more modules may be integrated into one module. The integrated module may be implemented in the form of hardware or in the form of a software functional module.

[0200] It should be understood that the structures of the display adjustment device shown in any one of Figures 11 to 13 can be combined with each other. The related design details and optional embodiments of the display adjustment device shown in any one of Figures 11 to 13 may refer to each other, or may refer to the related design details of the display adjustment method and optional embodiments shown in Figure 6. The details will not be described again in this specification.

[0201] Based on the above content and the same concept, the present application provides a computing device including a processor, the processor being connected to a memory, the memory being configured to store computer programs or instructions, and the processor being configured to execute the computer programs stored in the memory, such that the computing device performs the method in the above method embodiments.

[0202] Based on the above content and the same concept, the present application provides a computer-readable storage medium, which stores a computer program or instruction, and when the computer program or instruction is executed, enables a computing device to perform the method in the above method embodiment.

[0203] Based on the above content and the same concept, the present application provides a computer program product, which, when executed by a computer, enables the computing device to perform the method in the above method embodiments.

[0204] Based on the above content and the same concept, the present application provides a chip, which is connected to a memory and configured to read and execute computer programs or instructions stored in the memory, so that a computing device performs the method in the above method embodiment.

[0205] Based on the above content and the same concept, an embodiment of the present application provides an apparatus, which includes a processor and an interface circuit, the interface circuit being configured to receive a computer program or instruction and transmit the computer program or instruction to the processor, and the processor executing the computer program or instruction to perform the method in the above method embodiment.

[0206] It should be understood that in the embodiments of the present application, the module division is an example and is merely a logical division of functions. In actual implementation, other division methods may exist. In addition, the functional modules in the embodiments of the present application may be integrated into one processor, may exist physically alone, or two or more modules may be integrated into one module. The integrated module may be implemented in the form of hardware or in the form of a software functional module.

[0207] Those skilled in the art will appreciate that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, the present application may take the form of a hardware-only embodiment, a software-only embodiment, or an embodiment using a combination of software and hardware. Additionally, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0208] The present application has been described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the present application. It should be understood that each procedure and / or block in the flowcharts and / or block diagrams, and combinations of procedures and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or another programmable data processing device to create a machine, such that the instructions, executed by the processor of the computer or another programmable data processing device, can create an apparatus for implementing the particular function(s) in one or more procedures in the flowcharts and / or one or more blocks in the block diagrams.

[0209] These computer program instructions are stored in a computer-readable memory that can instruct a computer or any other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable memory can generate an artifact that includes an instruction apparatus that implements a particular function in one or more processes of the flowcharts and / or one or more blocks of the block diagrams.

[0210] The computer program instructions may alternatively be loaded onto a computer or other programmable data processing device such that a sequence of operations and steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing a particular function in one or more steps of the flowcharts and / or one or more blocks of the block diagrams.

[0211] It is obvious to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of protection of the present application, in which case the present application intends to cover these modifications and variations of the present application as long as they fall within the scope of the claims and their equivalents. [Other possible items] [Item 1] A display adjustment method, comprising: acquiring sensory information, wherein the sensory information is used to determine a facial area of ​​the target user; and adjusting a position of a display corresponding to the target user based on the position of the facial area. A method comprising: [Item 2] adjusting a position of a display corresponding to the target user based on the position of the facial area, adjusting the position of the display when the position of the facial area exceeds the reference area so that the adjusted position of the facial area is within the reference area. Item 1. The method according to item 1, comprising: [Item 3] adjusting a position of a display corresponding to the target user based on the position of the facial area, adjusting the position of the display when the distance between the position of the facial area and the position of the reference point exceeds a threshold value so that the adjusted distance between the position of the facial area and the position of the reference point is below the threshold value. Item 1. The method according to item 1, comprising: [Item 4] the sensing information includes sensing information of a first region and sensing information of a second region, the first region being an area imaged before the display is adjusted, and the second region being an area imaged after the display is adjusted; and adjusting the position of the display when the distance between the position of the facial area and the position of the reference point exceeds a threshold so that the adjusted distance between the position of the facial area and the position of the reference point is lower than a threshold; adjusting the position of the display when a distance between a position of the facial area of ​​the target user that is in the first region and a reference point in the first region is greater than or equal to the threshold value, so that in the second region, a distance between the facial area of ​​the target user and a reference point in the second region is less than or equal to the threshold value; Item 3. The method according to item 3, comprising: [Item 5] The sensing information includes sensing information of a first region, and the method further comprises: determining facial areas of a plurality of users based on the detected information; and determining the target user from the plurality of users based on the facial areas of the plurality of users and distances between reference points within the first region; 5. The method according to any one of items 1 to 4, comprising: [Item 6] The method further comprises: determining face areas of a plurality of users based on the detection information; and determining a user among the plurality of users and having a first body motion as the target user; 5. The method according to any one of items 1 to 4, comprising: [Item 7] The method further comprises: determining face areas of a plurality of users based on the detection information; and determining one of the plurality of users as the target user in response to a pointing action of the one of the plurality of users; 5. The method according to any one of items 1 to 4, comprising: [Item 8] The display is disposed on a seat back of a first seat section within a vehicle, the first seat section being a front seat of a second seat section in which the target user is positioned, and the method further comprises: adjusting the position of the display based on a first parameter where The first parameter includes at least one of a distance between the first seat section and the second seat section, a tilt angle of the first seat section, a tilt angle of a headrest on which the display is positioned, a length of the backrest of the first seat section, or a length of the headrest, wherein the headrest is positioned on the first seat section. 8. The method according to any one of items 1 to 7. [Item 9] 9. The method of any one of items 1 to 8, wherein the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, or a perspective position of the display relative to the target user. [Item 10] 10. The method of any one of items 1 to 9, wherein the detection information is acquired by a visual sensor, the visual sensor including one or more of a camera and a radar. [Item 11] A display adjustment device, a processing module and an input / output module; The input / output module is configured to acquire sensing information, wherein the sensing information is used to determine a facial area of ​​a target user; The apparatus, wherein the processing module is configured to adjust a position of a display corresponding to the target user based on a position of the facial area. [Item 12] The processing module includes: Item 12. The device of item 11, specifically configured to adjust the position of the display when the position of the facial area exceeds the reference area, such that the adjusted position of the facial area is within the reference area. [Item 13] The processing module includes: Item 12. The device of item 11, specifically configured to adjust the position of the display when a distance between the position of the facial area and the position of the reference point exceeds a threshold, so that the adjusted distance between the position of the facial area and the position of the reference point is lower than a threshold. [Item 14] the sensing information includes sensing information of a first region and sensing information of a second region, the first region being an area imaged before the display is adjusted, and the second region being an area imaged after the display is adjusted; and The processing module includes: In the second region, when a distance between a position of the facial area of ​​the target user that is in the first region and a reference point in the first region is greater than or equal to the threshold, the position of the display is adjusted so that a distance between the facial area of ​​the target user and a reference point in the second region is less than or equal to the threshold. Item 14. The device according to item 13, specifically configured as follows: [Item 15] The sensing information includes sensing information of a first region, and the processing module further comprises: determining facial areas of a plurality of users based on the detection information; and determining the target user from the plurality of users based on the facial areas of the plurality of users and distances between reference points within the first region; 15. The apparatus of any one of items 11 to 14, configured to perform [Item 16] The processing module further comprises: determining facial areas of a plurality of users based on the detection information; and determining a user among the plurality of users who has a first body motion as the target user; 15. The apparatus of any one of items 11 to 14, configured to perform [Item 17] The processing module further comprises: determining facial areas of a plurality of users based on the detection information; and In response to an instruction action of one of the plurality of users, determining the user as the target user. 15. The apparatus of any one of items 11 to 14, configured to perform [Item 18] The display is disposed on a seat back of a first seat section in a vehicle, the first seat section being a front seat of a second seat section in which the target user is positioned, and the processing module further comprises: adjusting the position of the display based on a first parameter It is structured as follows: The first parameter includes at least one of a distance between the first seat section and the second seat section, a tilt angle of the first seat section, a tilt angle of a headrest on which the display is positioned, a length of the backrest of the first seat section, or a length of the headrest, wherein the headrest is positioned on the first seat section. 18. The device according to any one of items 11 to 17. [Item 19] 19. The device of any one of items 11 to 18, wherein the position of the display includes at least one of a display orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, or a perspective position of the display relative to the target user. [Item 20] 20. The apparatus of items 11 to 19, wherein the detection information is acquired by a visual sensor, the visual sensor including one or more of a camera and a radar. [Item 21] A computing device comprising a processor, the processor connected to a memory, the memory storing a computer program or instructions, the processor configured to execute the computer program or instructions stored in the memory, such that the computing device performs the method according to any one of items 1 to 10. Computing devices. [Item 22] 11. A computer-readable storage medium having stored thereon a computer program or instructions that, when executed by a computing device, enable the computing device to perform the method of any one of items 1 to 10. [Item 23] A chip comprising at least one processor and an interface, wherein: the interface is configured to provide computer programs, instructions, or data to the at least one processor; The at least one processor is configured to execute the computer program or the instructions, so that the method according to any one of items 1 to 10 is performed. Tips.

Claims

1. A display adjustment method, comprising: acquiring sensory information, wherein the sensory information is used to determine a facial area of ​​the target user, the sensory information comprising image data from a camera; and adjusting a position of a display corresponding to the target user based on the position of the facial area. A method comprising:

2. adjusting a position of a display corresponding to the target user based on the position of the facial area, adjusting the position of the display when the position of the facial area exceeds the reference area so that the adjusted position of the facial area is within the reference area. The method of claim 1 , comprising:

3. adjusting a position of a display corresponding to the target user based on the position of the facial area, adjusting the position of the display when the distance between the position of the facial area and the position of the reference point exceeds a threshold value so that the adjusted distance between the position of the facial area and the position of the reference point is below the threshold value. The method of claim 1 , comprising:

4. the sensing information includes sensing information of a first region and sensing information of a second region, the first region being an area imaged before the display is adjusted, and the second region being an area imaged after the display is adjusted; and adjusting the position of the display when the distance between the position of the facial area and the position of the reference point exceeds a threshold so that the adjusted distance between the position of the facial area and the position of the reference point is lower than a threshold, adjusting the position of the display when a distance between a position of the facial area of ​​the target user and a reference point in the first region is greater than or equal to the threshold value, such that in the second region, a distance between the facial area of ​​the target user and a reference point in the second region is less than or equal to the threshold value; The method of claim 3, comprising:

5. The sensing information includes sensing information of a first region, and the method further comprises: determining face areas of a plurality of users based on the detected information; and determining the target user from the plurality of users based on a distance between the face area of ​​the plurality of users and a reference point in the first region, or determining a user among the plurality of users and having a first body motion as the target user, or determining one of the plurality of users as the target user in response to a user's instruction motion. The method of any one of claims 1 to 4, comprising:

6. The method further comprises: determining face areas of a plurality of users based on the detected information; and determining a user among the plurality of users and having a first body motion as the target user; The method of any one of claims 1 to 4, comprising:

7. The method further comprises: determining face areas of a plurality of users based on the detected information; and determining one of the plurality of users as the target user in response to a user's instruction action; The method of any one of claims 1 to 4, comprising:

8. The display is disposed in a seat back of a first seat section within a vehicle, the first seat section being a front seat of a second seat section in which the target user is positioned, and the method further comprises: adjusting the position of the display based on a first parameter where The first parameters include at least one of a distance between the first seat section and the second seat section, a tilt angle of the first seat section, a tilt angle of a headrest on which the display is positioned, a length of the backrest of the first seat section, and a length of the headrest, wherein the headrest is positioned on the first seat section.

8. The method according to any one of claims 1 to 7.

9. 9. The method of claim 1, wherein the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, and a perspective position of the display relative to the target user.

10. A display adjustment device, a processing module and an input / output module; the input / output module is configured to acquire sensory information, where the sensory information is used to determine a facial area of ​​a target user, the sensory information comprising image data from a camera; The apparatus, wherein the processing module is configured to adjust a position of a display corresponding to the target user based on a position of the facial area.

11. The processing module includes:

11. The device of claim 10, configured to adjust the position of the display when the position of the facial area exceeds the reference area, such that the adjusted position of the facial area is within the reference area.

12. The processing module includes:

11. The device of claim 10, configured to adjust the position of the display when a distance between the position of the facial area and the position of the reference point exceeds a threshold, such that the adjusted distance between the position of the facial area and the position of the reference point is lower than the threshold.

13. the sensing information includes sensing information of a first region and sensing information of a second region, the first region being an area imaged before the display is adjusted, and the second region being an area imaged after the display is adjusted; and The processing module includes:

13. The device of claim 10, wherein the device is configured to adjust the position of the display when a distance between a position of the facial area of ​​the target user and a reference point in the first region is greater than or equal to a threshold value, such that in the second region, the distance between the facial area of ​​the target user and a reference point in the second region is less than or equal to a threshold value.

14. The sensing information includes sensing information of a first region, and the processing module further comprises: determining facial areas of a plurality of users based on the detection information; and determining the target user from the plurality of users based on a distance between a reference point in the first region and the face area of ​​the plurality of users, or determining a user among the plurality of users and having a first body motion as the target user, or determining one of the plurality of users as the target user in response to a user's instruction motion.

14. The apparatus of claim 10, configured to:

15. The processing module further comprises: determining facial areas of a plurality of users based on the detected information; and determining a user among the plurality of users who has a first body motion as the target user; 14. The apparatus of claim 10, configured to:

16. The processing module further comprises: determining facial areas of a plurality of users based on the detected information; and determining one of the plurality of users as the target user in response to a user's instruction action; 14. The apparatus of claim 10, configured to:

17. The display is disposed on a seat back of a first seat section in a vehicle, the first seat section being a front seat of a second seat section in which the target user is positioned, and the processing module further comprises: Adjusting the position of the display based on a first parameter It is structured as follows: The first parameters include at least one of a distance between the first seat section and the second seat section, a tilt angle of the first seat section, a tilt angle of a headrest on which the display is positioned, a length of the backrest of the first seat section, and a length of the headrest, wherein the headrest is positioned on the first seat section.

17. Apparatus according to any one of claims 10 to 16.

18. 18. The device of claim 10, wherein the position of the display includes at least one of a viewing orientation of the display, a horizontal position of the display relative to the target user, a vertical position of the display relative to the target user, and a perspective position of the display relative to the target user.

19. A computer program product for causing a computing device to carry out the method of any one of claims 1 to 9.

20. A chip comprising at least one processor and an interface, wherein: the interface is configured to provide computer programs, instructions, or data to the at least one processor; The at least one processor is configured to execute the computer program or instructions, so that the method of any one of claims 1 to 9 is performed. Tips.

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