Head-up display system, head-up display method and related device

Abstract

The present invention provides a head-up display system, a head-up display method and a related device, which can improve the viewing effect of images in a head-up display mode for users. The head-up display system may comprise: an ambient light detection module arranged in a first display area of target glass, wherein an ambient light acquisition module is configured to acquire a target ambient light signal, and the target ambient light signal represents an ambient light signal at the first display area; and an image processing module configured to project a target image to a second display area in the first display area, wherein the second display area is determined on the basis of a brightness parameter of the target ambient light signal.

Description

A head-up display system, head-up display method and related devices

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410831537.6, filed on June 25, 2024, entitled "A Head-Up Display System, Head-Up Display Method and Related Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to the field of display technology, and in particular to a head-up display system, head-up display method and related apparatus. Background Technology

[0004] A head-up display (HUD) shows vehicle speed, gear position, lane departure warning, and other information on the windshield to help the driver monitor the vehicle's status. The content displayed is generally referred to as the HUD content. In real-world applications, stray light from outside and inside the vehicle can negatively impact the visibility of the HUD for the driver. Summary of the Invention

[0005] This invention provides a head-up display system, head-up display method, and related apparatus, which can improve the user's viewing experience of images in head-up display mode.

[0006] In a first aspect, embodiments of this application provide a head-up display system, which may include:

[0007] An ambient light detection module is set in the first display area of ​​the target glass. The ambient light acquisition module is used to acquire the target ambient light signal, and the target ambient light signal represents the ambient light signal at the first display area.

[0008] An image processing module is used to project a target image onto a second display area within the first display area, wherein the second display area is determined based on the brightness parameters of the target ambient light signal.

[0009] In one possible implementation, the head-up display system provided in this application includes an ambient light detection module comprising multiple brightness detection units, each of which is used to collect ambient light signals.

[0010] The brightness parameters of the target ambient light signal include the brightness parameters of the ambient light signal collected by each brightness detection unit.

[0011] In one possible implementation, in the head-up display system provided in this application, the plurality of brightness detection units are arranged in an array along a first direction.

[0012] In a possible implementation, the head-up display system provided by the present application is configured to:

[0013] adjust the upper boundary position and the lower boundary position of the second display area in the first direction based on the luminance parameters output by the luminance detection units, wherein the luminance parameters of the ambient light signals collected by the luminance detection units in the second display area are less than or equal to a target luminance threshold.

[0014] In a possible implementation, the head-up display system provided by the present application is configured to:

[0015] In a possible implementation, the head-up display system provided by the present application is configured to:

[0016] if the length of the adjusted second display area in the first direction satisfies a first image adjustment condition, reduce the size of the target image so that all the contents of the target image are projected in the second display area, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction.

[0017] In a possible implementation, the head-up display system provided by the present application is configured to:

[0018] if the length of the adjusted second display area in the first direction satisfies a second image adjustment condition, reduce the size of the target image, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction; and crop the reduced target image according to a preset cropping manner, and project the image reserved after the cropping in the second display area.

[0019] In a second aspect, the embodiments of the present application provide an image display method, which can include:

[0020] obtaining a target ambient light signal of a first display area of a target object, wherein the target object is a target glass, or the target object is a display device;

[0021] adjusting a second display area in the first display area based on the target ambient light signal;

[0022] displaying part or all of a target image in the second display area.

[0023] In a possible implementation, in the image display method provided by the application, the brightness parameter of the target ambient light signal comprises a brightness parameter of an ambient light signal collected by each of a plurality of brightness detection units, each of the brightness detection units is configured to collect an ambient light signal, and the plurality of brightness detection units are arranged in the first display area along the first direction.

[0024] In a possible implementation, in the image display method provided by the application, the adjusting the second display area in the first display area comprises:

[0025] adjusting a position of an upper boundary and a position of a lower boundary of the second display area in the first direction based on the brightness parameter output by each of the brightness detection units, wherein the brightness parameter of the ambient light signal collected by the brightness detection unit in the second display area is less than or equal to a target brightness threshold.

[0026] In a possible implementation, in the image display method provided by the application, the displaying part or all of the target image in the second display area comprises:

[0027] displaying all of the target image in the second display area; or

[0028] reducing the size of the target image, and displaying all of the reduced target image in the second display area, wherein a reduction ratio of a length of the target image in the first direction is the same as a reduction ratio of a length of the target image in the second direction; or

[0029] reducing the size of the target image, wherein a reduction ratio of a length of the target image in the first direction is the same as a reduction ratio of a length of the target image in the second direction, and cropping the reduced target image according to a preset cropping manner, and displaying the image reserved after the cropping in the second display area.

[0030] In a third aspect, an electronic device is provided, which can include:

[0031] a processor;

[0032] a memory configured to store processor-executable instructions;

[0033] wherein the processor is configured to execute the instructions to implement the image display method of any one of the second aspect.

[0034] In a fourth aspect, a storage medium is provided, and when instructions in the storage medium are executed by a processor, the processor can execute the image display method of any one of the second aspect.

[0035] In a fifth aspect, the embodiments of the present application provide a vehicle, which can comprise the head-up display system according to any one of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application and, do not limit the present application.

[0037] FIG. 1 shows a schematic diagram of an application scenario;

[0038] FIG. 2 shows a schematic diagram of an application scenario;

[0039] FIG. 3 shows a schematic diagram of a structure of a head-up display system;

[0040] FIG. 4 shows a schematic diagram of a luminance detection unit;

[0041] FIG. 5 shows a schematic diagram of a structure of a head-up display system;

[0042] FIG. 6 shows a schematic diagram of a first display area and a second display area;

[0043] FIG. 7a shows a schematic diagram of an adjusted second display area;

[0044] FIG. 7b shows a schematic diagram of an adjusted second display area;

[0045] FIG. 7c shows a schematic diagram of an adjusted second display area;

[0046] FIG. 8 shows a schematic diagram of a target image in the adjusted second display area;

[0047] FIG. 9a shows a schematic diagram of a process of processing the target image;

[0048] FIG. 9b shows a schematic diagram of a process of processing the target image;

[0049] FIG. 9c shows a schematic diagram of a process of processing the target image;

[0050] FIG. 9d shows a schematic diagram of a process of processing the target image;

[0051] FIG. 9e shows a schematic diagram of a part of the target image in the adjusted second display area;

[0052] FIG. 10 is a schematic flowchart of an image display method according to an exemplary embodiment;

[0053] FIG. 11 is a schematic flowchart illustrating an image display method according to an exemplary embodiment;

[0054] FIG. 12 is a schematic view of a vehicle according to an exemplary embodiment;

[0055] FIG. 13 is a schematic view of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0056] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0057] At least one of the embodiments of the present application described herein includes one or more. In this case, the plurality means more than or equal to two. In addition, it should be understood that the terms "first", "second", and the like used in the description of the present application are used to distinguish the description and are not understood to indicate or imply relative importance. Also, it should be understood that the terms "A and / or B" in the description of the present application include three schemes, respectively, including A, including B, and including A and B.

[0058] In the embodiments, the term "when" or "after" can be interpreted to mean "if" or "after" or "in response to determining" or "in response to detecting" according to the context. Similarly, according to the context, the phrase "upon determining" or "if detecting (the stated condition or event)" can be interpreted to mean "if determining" or "in response to determining" or "upon detecting (the stated condition or event)" or "in response to detecting (the stated condition or event)".

[0059] In this specification, the reference "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" or "in other embodiments" or "in additional embodiments" or the like, in various places in the specification are not necessarily all referring to the same embodiment, unless otherwise noted. The terms "including", "containing", "having", and variations thereof mean "including but not limited to", unless otherwise noted.

[0060] The application scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. It can be known by those skilled in the art that, with the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0061] FIG. 1 shows an application scenario. The windshield of a vehicle is usually composed of two layers of glass and a plastic interlayer sandwiched between the two layers of glass, and has a certain thickness. Because the refractive index of air and glass is different, light is refracted and reflected when passing through the glass. Because the two reflected lights are not completely coincident, two virtual images with the same object but different positions, that is, ghosting phenomenon, will occur. Therefore, the windshield used for head-up display usually adopts a wedge-shaped angle design, as shown in FIG. 1, that is, the plastic interlayer with uniform thickness is changed to a wedge-shaped design, that is, a wedge-shaped angle is arranged between the two layers of glass. Through the wedge-shaped angle design, the images refracted by the two surfaces are coincident, so as to eliminate ghosting.

[0062] Please refer to FIG. 2. In actual application scenarios, the influence of environmental light irradiation, when the intensity of environmental light is too large or the angle of incidence to the windshield is in a certain range, will affect the human eye to watch the head-up display content. In order to improve the effect of the human eye to watch the head-up display content, the present application provides a head-up display system, an image display method and related devices.

[0063] FIG. 3 exemplarily shows a head-up display system. The head-up display system can include an environmental light detection module and an image processing module. The environmental light detection module can be arranged in a first display area of a target glass, and the environmental light acquisition module can be used to acquire a target environmental light signal. The target environmental light signal represents the environmental light signal at the first display area. The image processing module can be used to project a target image to a second display area in the first display area, wherein the second display area is determined based on a brightness parameter of the target environmental light signal.

[0064] FIG. 3 is used to introduce that the first display area is a region on the target glass. It is not used as a limitation on the specific position of the first display area on the target glass, nor as a specific limitation on the outline of the first display area, nor as a specific limitation on the outline of the target glass. In some scenarios, the first display area can be located at the lower left, lower right, upper left or upper right of the target glass. In some scenarios, the outline of the first display area can be rectangular, trapezoidal, circular, strip-shaped or irregular. The embodiments of the present application do not make too many limitations on this. The outline of the first display area is taken as a rectangle as an example for introduction.

[0065] In one possible implementation, the head-up display system can further include the aforementioned target glass. In some examples, the target glass can be implemented as a windshield for a vehicle, which can be composed of two layers of glass with a wedge-shaped plastic interlayer in between. In other examples, the target glass can be implemented as a glass in a glass imaging device, which can include but is not limited to devices based on glass imaging technology, where the target glass can be a wedge-shaped glass.

[0066] The image processing module can project the target image containing the target content onto the target glass by means of light incidence, reflection, refraction, etc., so that the human eye can view the image of the target image, such as a virtual image of the target image. The target content contained in the target image can include but is not limited to one or more combinations of text, symbols, graphics, etc., and the embodiments of the present application do not make excessive limitations on the content contained in the target image.

[0067] The first display area of the target glass can be understood as an area (or range) of the target glass for the human eye to view (or observe) the image of the target image. The image processing module projects the target image onto the target glass by means of light incidence, reflection, refraction, etc., so that the human eye can view or observe the image of the target image in the first display area, realizing the human eye viewing the content in the target image.

[0068] In the embodiments of the present application, the image processing module can adjust or change the projection mode of the target image, so that the human eye can view the image of the target image in part or all of the first display area of the target glass, which is convenient for distinguishing, and part or all of the first display area of the target glass is recorded as a second display area. It can be understood in this way that the user can view the image of the target image through the second display area, and the user cannot view the image of the target image in other areas of the first display area except the second display area.

[0069] The image processing module can have the ability to adjust the second display area and project the target image to the second display area, realizing that the human eye can see the target image through the second display area. Wherein, the image processing module can adjust the second display area based on the aforementioned target ambient light signal.

[0070] The ambient light detection module can include one or more luminance detection units. In some examples, the luminance detection unit can include, but is not limited to, an illumination intensity sensor that collects a light signal and converts it into an electrical signal that can represent the illumination intensity of the light signal. In other examples, as shown in FIG. 4, the luminance detection unit can include several parts such as a photoelectric conversion unit, a floating diffusion capacitor, a source follower, a programmable amplifier, and an analog-to-digital converter. Incident photons are converted into electrons and stored in a potential well, and these charges will be transferred to the floating diffusion capacitor through the floating diffusion node, thus completing the conversion from charge to voltage. The converted voltage is read out by the source follower, amplified by the programmable amplifier, and finally converted from an analog signal to a digital signal by the digital-to-analog converter, which can represent the illumination intensity of the incident light signal.

[0071] In one possible implementation, as shown in FIG. 5, the image processing module can include a processing unit and an image projection unit. The processing unit can be configured to generate an image, and determine a second display area, and provide the generated image and information of the second display area to the image projection unit.

[0072] The image projection unit can project the image provided by the processing unit to the second display area based on the received information of the second display area, so that the human eye can view the image generated by the processing unit through the second display area.

[0073] In some examples, the processing unit can generate a target image containing target content. The processing unit can perform scaling processing and / or cropping processing on the target image. The scaling processing can include zooming out processing and zooming in processing. In some scenarios, the processing unit can provide a first image obtained by performing scaling processing on the target image to the image projection unit, and the image projection unit can project the first image. In other scenarios, the processing unit can provide a second image obtained by performing cropping processing on the target image to the image projection unit. The image projection unit can project the second image. In yet other scenarios, the processing unit can provide a third image obtained by performing cropping processing on a first image obtained by performing scaling processing on the target image to the image projection unit. The image projection unit can project the third image.

[0074] In some examples, the processing unit can determine the second display area based on the luminance parameter of the target ambient light signal, thereby achieving the function of the aforementioned image processing module that determines the second display area based on the luminance parameter of the target ambient light signal.

[0075] According to any one of the foregoing embodiments, the image processing module can receive an electrical signal corresponding to the target ambient light signal provided by the ambient light detection module, and the image processing module can determine the luminance parameter corresponding to the target ambient light signal according to the electrical signal. Alternatively, the image processing module can receive the luminance parameter of the target ambient light signal provided by the ambient light detection module.

[0076] In one possible implementation, FIG. 6 schematically shows a first display area. The ambient light detection module includes a plurality of luminance detection units, and each of the plurality of luminance detection units is located in the first display area. The luminance detection unit is configured to collect an ambient light signal. The luminance parameter of the target ambient light signal includes a luminance parameter of the ambient light signal collected by each luminance detection unit.

[0077] In the operation of determining the second display area based on the luminance parameter of the target ambient light signal, the image processing module can determine the second display area based on the luminance parameters of the ambient light signals corresponding to the plurality of luminance detection units. For ease of description, the luminance parameter of the ambient light signal corresponding to the luminance detection unit is referred to as the luminance parameter corresponding to the luminance detection unit.

[0078] In some examples, in combination with FIG. 6, the plurality of luminance detection units can be arranged in an array along a first direction, where the first direction can be a width direction of the target glass. The plurality of luminance detection units can be arranged in an array along the first direction. The ambient light signals collected by the plurality of luminance detection units can reflect the ambient light conditions at different positions of the first display area. The image processing module can determine the second display area according to the ambient light conditions at different positions of the first display area, so that the human eye has a good effect when viewing the target image through the second display area. The second display area is shown in the dashed box in FIG. 6. The outline of the second display area can be in a similar relationship with the outline of the first display area, and / or the outline of the second display area can be a rectangle.

[0079] In some application scenarios, the upper boundary and the lower boundary of the second display area are parallel. The upper boundary of the second display area is parallel to a second direction, and the second direction can be a length direction of the target glass. Optionally, the upper boundary and the lower boundary of the first display area are parallel, and the upper boundary of the first display area is parallel to the second direction.

[0080] Optionally, in the first display area, the largest inscribed rectangle in the range between the upper boundary position and the lower boundary position of the second display area can be used as the second display area. Alternatively, the outline of the second display area is in a similar relationship with the outline of the first display area.

[0081] The image processing module can adjust the upper boundary position and the lower boundary position of the second display area according to the luminance parameter corresponding to each luminance detection unit.

[0082] For example, the position ordering of the plurality of luminance detection units is ordered from top to bottom along the first direction. The image processing module can order the luminance parameters corresponding to the plurality of luminance detection units according to the position ordering.

[0083] The image processing module can compare the luminance parameters corresponding to the plurality of luminance detection units with the target luminance threshold R respectively. If the luminance parameter corresponding to one of the plurality of luminance detection units is greater than the target luminance threshold R, it reflects that the light intensity at the luminance detection unit is too high, and the effect of viewing the target image is poor. If the luminance parameter corresponding to one of the plurality of luminance detection units is less than or equal to the target luminance threshold R, it reflects that the light intensity at the luminance detection unit is low, and the effect of viewing the target image is good. For the convenience of introduction, it is assumed below that the number of the plurality of luminance detection units is n, and n is a positive integer greater than or equal to 2.

[0084] In one possible case, in the ordering of the luminance parameters corresponding to the plurality of luminance detection units, the luminance parameters corresponding to the first j luminance detection units are less than or equal to the target luminance threshold R respectively, and the luminance parameters corresponding to the last n-j luminance detection units are greater than the target luminance threshold R respectively, j can be a positive integer greater than or equal to 1, and j is less than n. The image processing module can determine that the upper boundary position of the second display area is the same as the upper boundary position of the first display area, and determine the lower boundary position of the second display area according to that the luminance parameters corresponding to the first j luminance detection units are less than or equal to the target luminance threshold R respectively, and the luminance parameters corresponding to the last n-j luminance detection units are greater than the target luminance threshold R respectively, wherein the range between the lower boundary position of the second display area and the upper boundary position of the second display area includes part of the jth luminance detection unit or includes all of the jth luminance detection unit. As shown in FIG. 7a, the lower boundary of the second display area can pass through the jth luminance detection unit, and optionally, the lower boundary of the second display area can pass through the center position of the jth luminance detection unit.

[0085] The luminance parameters corresponding to the first j luminance detection units being less than or equal to the target luminance threshold R respectively can reflect that the upper region in the first display area is suitable for a user to view the target image, and can provide a good viewing effect. The image processing module can project the target image to the second display area to provide a good viewing effect for the user.

[0086] In another possible scenario, in the sorting of the luminance parameters corresponding to the luminance detection units, the luminance parameters corresponding to the first p luminance detection units are respectively greater than the target luminance threshold R, and the luminance parameters corresponding to the last n-p luminance detection units are respectively less than or equal to the target luminance threshold R, p can be a positive integer greater than or equal to 1, and p is less than n. The image processing module can determine, according to the luminance parameters corresponding to the first p luminance detection units being respectively greater than the target luminance threshold R and the luminance parameters corresponding to the last n-p luminance detection units being respectively less than or equal to the target luminance threshold R, that the lower boundary position of the second display region is the same as the lower boundary position of the first display region, and determine the upper boundary position of the second display region, wherein the range between the upper boundary position of the second display region and the lower boundary position of the second display region includes part of the (p+1)th luminance detection unit or includes the entire (p+1)th luminance detection unit. As shown in FIG. 7b, the lower boundary of the second display region can pass through the (p+1)th luminance detection unit, and optionally, the lower boundary of the second display region can pass through the center position of the (p+1)th luminance detection unit.

[0087] The luminance parameters corresponding to the last n-p luminance detection units being respectively less than or equal to the target luminance threshold R can reflect that the lower region in the first display region is suitable for a user to view the target image, and can provide a good viewing effect. The image processing module can project the target image to the second display region to provide a good viewing effect for the user.

[0088] In a possible scenario, n is a positive integer greater than 2. In the sorting of the luminance parameters corresponding to the luminance detection units, the luminance parameters corresponding to the first s luminance detection units are respectively greater than the target luminance threshold R, and the luminance parameters corresponding to the last t luminance detection units are respectively greater than the target luminance threshold R, and the luminance parameters corresponding to the (s+1)th to (t-1)th luminance detection units are respectively less than or equal to the target luminance threshold R. s can be a positive integer greater than or equal to 1, and s is less than n, and t can be a positive integer greater than or equal to 1, and t is less than n.

[0089] The image processing module can determine the upper boundary position of the second display region and determine the lower boundary position of the second display region according to the fact that the luminance parameters corresponding to the first s luminance detection units are respectively greater than the target luminance threshold R, the luminance parameters corresponding to the last t luminance detection units are respectively greater than the target luminance threshold R, and the luminance parameters corresponding to the (s+1)th to (t-1)th luminance detection units are respectively less than or equal to the target luminance threshold R. The range between the upper boundary position of the second display region and the lower boundary position of the second display region includes part of the (s+1)th luminance detection unit or all of the (s+1)th luminance detection unit, and the range also includes part of the (t-1)th luminance detection unit or all of the (t-1)th luminance detection unit. As shown in FIG. 7c, the upper boundary of the second display region can pass through the (s+1)th luminance detection unit, and the lower boundary of the second display region can pass through the (t-1)th luminance detection unit. Alternatively, the upper boundary of the second display region can pass through the center position of the (s+1)th luminance detection unit, and the lower boundary of the second display region can pass through the center position of the (t-1)th luminance detection unit.

[0090] The fact that the luminance parameters corresponding to the (s+1)th to (t-1)th luminance detection units are respectively less than or equal to the target luminance threshold R can reflect that the middle region of the first display region is suitable for a user to view the target image and can provide a good viewing effect. The image processing module can project the target image to the second display region to provide a good viewing effect for the user.

[0091] In another possible case, the fact that the luminance parameters corresponding to the luminance detection units are respectively greater than the target luminance threshold R can reflect that the effect of viewing the target image through the first display region is poor at present. The image processing module can stop the operation of projecting the target image containing the target content to the first display region according to the fact that the luminance parameters corresponding to the luminance detection units are respectively greater than the target luminance threshold R, and it can also be understood that the length of the second display region in the first direction is 0. In some examples, the head-up display system is applied in a vehicle scene, and when the image processing module stops projecting the target image containing the target content, the display device in the vehicle can display the target content. The display device in the vehicle can include but is not limited to a center screen or an instrument panel. Alternatively, the user can be reminded of the key information in the target content through a voice mode. For example, the user can be reminded of the key information in the target content through a voice mode when approaching a corresponding limit value, such as a navigation road reminder, a vehicle speed, fuel consumption, and the like.

[0092] As can be clear from the above description, the image processing module adjusts the upper boundary position and the lower boundary position of the second display region, which can ensure that the user can view a better image imaging effect through the second display region.

[0093] In one possible design, the image processing module can obtain a first region width threshold H1. If the length H2 of the second display region in the first direction (i.e., the distance between the upper boundary and the lower boundary of the second display region) is greater than or equal to the first region width threshold H1, the user can view the entire target image through the second display region after the target image is projected to the second display region according to the default size. If the length H2 of the second display region in the first direction is less than the first region width threshold H1, the user cannot view the entire target image through the second display region after the target image is projected to the second display region according to the default size. The user can view a portion of the target image through the second display region, and the second display region is not sufficient to display the projected target image.

[0094] The image processing module can also perform a reduction process on the target image and project the reduced target image to the second display region. The image processing module can obtain a second region width threshold H0 and / or a maximum compression ratio threshold k0. Although the image processing module can project the reduced target image to the second display region, the user can view the entire content of the target image through the second display region. However, the clarity and detail level of the target image will decrease after the target image is reduced to a certain extent. If the length H2 of the adjusted second display region in the first direction is less than the second region width threshold H0 or the scaling ratio of the target image is greater than k0, the image processing module can project the reduced target image to the second display region, so that the user can view the content of the target image through the second display region, but the clarity and detail level is poor. If the length H2 of the second display region in the first direction is greater than the second region width threshold H0 and the scaling ratio of the target image is less than or equal to k0, the image processing module can project the reduced target image to the second display region, so that the user can view the entire content of the target image through the second display region, and the clarity and detail level is good. The image processing module can also perform a reduction process on the target image and project the reduced target image to the second display region. The image processing module can obtain a second region width threshold H0 and / or a maximum compression ratio threshold k0. Although the image processing module can project the reduced target image to the second display region, the user can view the entire content of the target image through the second display region. However, the clarity and detail level of the target image will decrease after the target image is reduced to a certain extent. If the length H2 of the adjusted second display region in the first direction is less than the second region width threshold H0 or the scaling ratio of the target image is greater than k0, the image processing module can project the reduced target image to the second display region, so that the user can view the content of the target image through the second display region, but the clarity and detail level is poor. If the length H2 of the second display region in the first direction is greater than the second region width threshold H0 and the scaling ratio of the target image is less than or equal to k0, the image processing module can project the reduced target image to the second display region, so that the user can view the entire content of the target image through the second display region, and the clarity and detail level is good. The image processing module can also perform a reduction process on the target image and project the reduced target image to the second display region. The image processing module can obtain a second region width threshold H0 and / or a maximum compression ratio threshold k0. Although the image processing module can project the reduced target image to the second display region, the user can view the entire content of the target image through the second display region. However, the clarity and detail level of the target image will decrease after the target image is reduced to a certain extent. If the length H2 of the adjusted second display region in the first direction is less than the second region width threshold H0 or the scaling ratio of the target image is greater than k0, the image processing module can project the reduced target image to the second display region, so that the user can view the content of the target image through the second display region, but the clarity and detail level is poor. If the length H2 of the second display region in the first direction is greater than the second region width threshold H0 and the scaling ratio of the target image is less than or equal to k0, the image processing module can project the reduced target image to the second display region, so that the user can view the entire content of the target image through the second display region, and the clarity and detail level is good.

[0095] Optionally, when the image processing module performs the scaling-down processing on the target image, the image processing module adopts the equal scaling-down manner, and the scaling-down ratio of the length of the target image in the first direction is same as the scaling-down ratio of the length of the target image in the second direction. As shown in FIG. 8, before the image processing module adjusts the second display area, the length of the second display area in the first direction is H1 (which is also the first area width threshold H1), the length of the target image in the first direction is b1, and the length of the target image in the second direction is a1. After the image processing module adjusts the second display area, the length of the second display area in the first direction is H2, and H2 is less than H1. The image processing module performs the scaling-down processing on the target image, and the length of the target image in the first direction after the scaling-down processing is b2, and the length of the target image in the second direction after the scaling-down processing is a2, wherein b2 can be equal to H2,

[0096] In the embodiments of the present application, the image processing module can further determine whether the length of the adjusted second display area in the first direction meets the first image adjustment condition. If the first image adjustment condition is met, it can be reflected that the target image after the scaling-down processing can have better definition and detail level when projected onto the second display area. On the contrary, if the first image adjustment condition is not met, it can be reflected that the target image does not need to be scaled down, or the definition and detail level of the target image after the scaling-down processing is poor when projected onto the second display area.

[0097] The first image adjustment condition can include the following conditions:

[0098] The first condition is that the length H2 of the adjusted second display area in the first direction is less than the first area width threshold H1.

[0099] The second condition is that the length H2 of the adjusted second display area in the first direction is greater than or equal to the second area width threshold H0, and the scaling ratio of the target image is less than k0.

[0100] When the length H2 of the adjusted second display area in the first direction meets the first condition and the second condition, the first image adjustment condition is met. When the length H2 of the adjusted second display area in the first direction does not meet the first condition or the second condition, the first image adjustment condition is not met.

[0101] ​In a possible design, the resolution and the level of detail of the target image projected to the second display area are poor after the scaling down processing, in which case, the image processing module can perform cropping on the scaled-down target image according to the preset cropping manner after the scaling down processing, and project the image retained after the cropping to the second display area. Optionally, in the operation of the image processing module for the cropping, the image is cropped into two parts of an upper part and a lower part, and the upper part image is retained.

[0102] The image processing module can further determine whether the length of the adjusted second display area in the first direction satisfies a second image adjustment condition. If the second image adjustment condition is satisfied, it can be reflected that the resolution and the level of detail of the target image projected to the second display area can be good after the scaling down processing. Conversely, if the second image adjustment condition is not satisfied, it can be reflected that the target image does not need to be scaled down, or the resolution and the level of detail of the target image projected to the second display area are poor after the cropping processing.

[0103] The second image adjustment condition can include the following conditions:

[0104] The third condition is that the length H2 of the adjusted second display area in the first direction is less than the second area width threshold H0, or the scaling ratio of the target image is less than or equal to k0.

[0105] The fourth condition is that the length H2 of the adjusted second display area in the first direction is less than the first area width threshold H1, and the length H2 of the adjusted second display area in the first direction is greater than the third area width threshold HC.

[0106] The third area width threshold HC can be understood as a minimum display area width threshold. If the length H2 of the adjusted second display area in the first direction is less than the third area width threshold HC, it can be reflected that the resolution and the level of detail of the target image projected to the second display area are poor after the scaling down processing and the cropping processing, and it is not suitable to continue projecting the target image to provide the head-up display content for the user, and the image processing module can stop projecting the target image to the second display area, that is, stop projecting the target image.

[0107] If the length H2 of the adjusted second display area in the first direction is greater than the third area width threshold HC, it can be reflected that the resolution and the level of detail of the target image projected to the second display area are good after the scaling down processing and the cropping processing.

[0108] ​The length H2 of the adjusted second display area in the first direction meets the second image adjustment condition when the length H2 meets the third condition and meets the fourth condition. The length H2 of the adjusted second display area in the first direction does not meet the second image adjustment condition when the length H2 does not meet the third condition or does not meet the fourth condition.

[0109] In the embodiments of the present application, the image processing module can further determine whether the length of the adjusted second display area in the first direction meets the second image adjustment condition. If the second image adjustment condition is met, it can reflect that the target image after the reduction processing and the cropping processing can have better clarity and detail level when projected onto the second display area. Conversely, if the second image adjustment condition is not met, it can reflect that the target image does not need to be reduced, or the clarity and detail level of the target image after the reduction processing and the cropping processing is poor when projected onto the second display area.

[0110] The length H2 of the adjusted second display area in the first direction meeting the second image adjustment condition can include the following multiple cases. The length of the adjusted second display area in the first direction is denoted as H2, the first area width threshold is denoted as H1, the second area width threshold is denoted as H0, the third area width threshold is denoted as HC, and the maximum compression ratio threshold is denoted as k0. Wherein, H1 is greater than H0.

[0111] In the first case, H2>H0, H2>HC. As shown in FIG. 9a, in the first case, the image processing module can perform equal-scale reduction processing on the target image to obtain a first image, wherein the length of the first image in the first direction is The value is greater than H2. The length of the first image in the first direction is greater than the length H2 of the adjusted second display area in the first direction.

[0112] The image processing module can perform cropping processing on the first image according to the first cropping manner. The image processing module crops the first image into two parts, the upper part of the first image in the first direction is equal to H2, and the length of the lower part in the first direction is The upper part of the first image is denoted as the second image, and the image processing module can retain the second image and project the second image on the adjusted second display area, so that the user can see part of the target content in the target image, which generally can reflect the key information of the target content. For example, the case of part of the target image in the adjusted second display area shown in FIG. 9e

[0113] In the second case, H2<H0, H2> HC. As shown in FIG. 9b, in the second case, the image processing module can perform equal scale reduction on the target image to obtain a third image, wherein the length of the third image in the first direction is H0.

[0114] The image processing module can perform the cropping on the third image according to the second cropping manner. The image processing module crops the third image into two parts, the upper part of the third image has a length equal to H2 in the first direction, and the lower part has a length of H0-H2 in the first direction. The upper part of the third image is recorded as a fourth image, and the image processing module can retain the fourth image and project the fourth image on the adjusted second display area, so that the user can see a part of the target content in the target image, which generally embodies the key information of the target content. For example, the case of the part of the target image in the adjusted second display area shown in FIG. 9e.

[0115] In the third case, H2< H0, H2> HC. In the third case, the situation that may occur, as shown in FIG. 9c, the image processing module can perform equal scale reduction on the target image to obtain a third image, wherein the length of the third image in the first direction is H0. The image processing module can perform the cropping on the third image according to the second cropping manner. The image processing module crops the third image into two parts, the upper part of the third image has a length equal to H2 in the first direction, and the lower part has a length of H0-H2 in the first direction. The upper part of the third image is recorded as a fourth image, and the image processing module can retain the fourth image and project the fourth image on the adjusted second display area, so that the user can see a part of the target content in the target image, which generally embodies the key information of the target content. For example, the case of the part of the target image in the adjusted second display area shown in FIG. 9e.

[0116] In the third case, the situation that may occur, as shown in FIG. 9d, the image processing module can perform equal scale reduction on the target image to obtain a first image, wherein the length of the first image in the first direction is which is greater than H2. The length of the first image in the first direction is greater than the length H2 of the adjusted second display area in the first direction.

[0117] The image processing module can perform the cropping on the first image according to the first cropping manner. The image processing module crops the first image into two parts, the upper part of the first image has a length equal to H2 in the first direction, and the lower part has a length of H0-H2 in the first direction. The upper part of the first image is recorded as a second image. The image processing module can retain the second image and project the second image on the adjusted second display area, so that the user can see a part of the target content in the target image, which generally embodies the key information of the target content. For example, the case of a part of the target image in the adjusted second display area shown in FIG. 9e

[0118] Through the above introduction, the use or function of the first image adjustment condition and the second image adjustment condition can be clear. Those skilled in the art can adjust the specific value of the threshold in the first image adjustment condition and the specific value of the threshold in the second image adjustment condition according to the actual application needs. The present application does not specifically limit the threshold in the first image adjustment condition and the threshold in the second image adjustment condition.

[0119] In addition, the present application also provides an image display method, which can be applied to any head-up display system provided by the foregoing embodiments, and can also be applied to a display device or a display apparatus comprising an ambient light detection module. The image display method can be executed by a processor or the foregoing image processing module. Hereinafter, the processor is taken as an example for introduction. FIG. 10 exemplarily shows an image display method, which can comprise the following steps:

[0120] S1001, obtaining a target ambient light signal of a first display area of a target object.

[0121] In specific implementation, the target object can be implemented as the foregoing target glass, or the target object can be implemented as a display apparatus. The display apparatus can have a display function. The display apparatus can be a device with a display module. The display apparatus can be implemented as a device with any type of display screen. Or the display apparatus can be implemented as a device based on glass imaging technology.

[0122] The processor can receive an electrical signal capable of representing the target ambient light signal of the first display area of the target object. Or the processor can receive a luminance parameter capable of representing the target ambient light signal of the first display area of the target object.

[0123] S1002, adjusting a second display area in the first display area based on the target ambient light signal.

[0124] S1003, displaying part or all of a target image in the second display area.

[0125] In the case that the target object is implemented as the aforementioned target glass, the processor displays part or all of the target image in the second display area, which can mean that the part or all of the target image is projected in the second display area, and the user can view the part or all of the target image through the second display area to realize the display of the target image.

[0126] In the case that the display device is implemented as the aforementioned display device, the processor displays part or all of the target image in the second display area of the display screen of the display device.

[0127] In the embodiments of the present application, the target ambient light signal of the first display area is used to adjust the second display area, so that part or all of the target image can have good viewing effect in the second display area, and the user can easily view the key information of the content contained in the target image.

[0128] In a possible implementation, the luminance parameter of the target ambient light signal includes a luminance parameter of an ambient light signal collected by each luminance detection unit, each luminance detection unit is configured to collect the ambient light signal, the plurality of luminance detection units are located in the first display area, and the plurality of luminance detection units are arranged in an array along the first direction.

[0129] In the operation of adjusting the second display area in the first display area, the processor can adjust the upper boundary position and the lower boundary position of the second display area in the first direction based on the luminance parameter output by each luminance detection unit, wherein the luminance parameter of the ambient light signal collected by the luminance detection unit in the second display area is less than or equal to a target luminance threshold. The process of adjusting the upper boundary position and the lower boundary position of the second display area in the first direction can refer to the related operations of the image processing module in the foregoing embodiments, and will not be described here.

[0130] In a possible implementation, in the operation of displaying part or all of the target image in the second display area, the processor can display all of the target image in the second display area, or reduce the size of the target image and display all of the target image after the size reduction in the second display area, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction, or the size of the target image is reduced, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction, and the target image after the size reduction is cropped according to a preset cropping manner, and the image reserved after the cropping is displayed in the second display area.

[0131] In a possible design, in a possible implementation, the processor can perform the following process in the operation of displaying part or all of the target image in the second display area:

[0132] If the width of the adjusted second display area is greater than the first area width threshold H1, all of the target image can be displayed in the second display area.

[0133] If the width of the adjusted second display area satisfies the first image adjustment condition, the size of the target image can be reduced, and all of the reduced target image can be displayed in the second display area, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction.

[0134] If the width of the adjusted second display area satisfies the second image adjustment condition, the size of the target image can be reduced, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction; and the reduced target image is cropped in a preset cropping manner, and the image remaining after cropping is displayed in the second display area.

[0135] If the width of the adjusted second display area is less than the first area width threshold H1, and does not satisfy the first image adjustment condition and the second image adjustment condition, the operation of displaying the target image in the first display area can be stopped.

[0136] FIG. 11 exemplarily shows an image display method, which can include the following steps:

[0137] S1101, obtaining a target ambient light signal of a first display area of a target object.

[0138] S1102, adjusting a second display area in the first display area based on the target ambient light signal.

[0139] S1103, determining whether the width H2 of the adjusted second display area is greater than the first area width threshold H1, if yes, the next step is S1104, if no, the next step is S1105.

[0140] S1104, determining whether the width H2 of the adjusted second display area satisfies the first image adjustment condition, if yes, the next step is S1106, if no, the next step is S1107.

[0141] S1105, if all of the current target image is located in the adjusted second display region, the position of the target image is not adjusted, or if a part of the current target image is not in the adjusted second display region, the position of the target image is adjusted so that all of the target image is located in the adjusted second display region.

[0142] S1106, the size of the target image is reduced, and all of the reduced target image is displayed in the second display region, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction.

[0143] S1107, it is judged whether the width H2 of the adjusted second display region satisfies the second image adjustment condition, if yes, the next step S1108 is executed, if no, the display of the target image is stopped.

[0144] After the processor stops displaying the target image, the operations in steps S1101-S1108 are repeatedly executed.

[0145] S1108, the size of the target image is reduced, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction; and the target image after reduction is cropped according to a preset cropping mode, and the image reserved after cropping is displayed in the second display region.

[0146] In a specific implementation, the width of the image reserved after cropping is the width H2 of the adjusted second display region.

[0147] In the embodiments provided in the present application, the method provided by the embodiments of the present application is introduced from the perspective of the processor as the execution subject. In order to realize each function in the method provided by the embodiments of the present application, the processor can include a hardware structure and / or a software module, and the above-mentioned functions are realized in the form of hardware structure, software module, or hardware structure plus software module. Whether a certain function in the above-mentioned functions is executed in the form of hardware structure, software module, or hardware structure plus software module depends on the specific application of the technical solution and the design constraint conditions.

[0148] In addition, the embodiments of the present application provide a computer readable storage medium for storing a computer program, when the computer program runs on a computer, so that the computer executes the steps or operations in any one of the above-mentioned image display methods.

[0149] In the above embodiments, all or part of them can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part of them can be realized in the form of a computer program product.

[0150] The embodiments of the present application also provide a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)) and the like. In the case of no conflict, the solutions of the above embodiments can be combined.

[0151] Based on the head-up display system and the image display method provided in the above embodiments, the embodiments of the present application also provide a vehicle, as shown in FIG. 12. The vehicle can include the head-up display system and the target glass provided in the above embodiments. The head-up display system can include an ambient light detection module and an image processing module. The ambient light detection module is arranged in the first display area of the target glass, and the ambient light detection module is configured to collect a target ambient light signal, and the target ambient light signal represents an ambient light signal at the first display area. The image processing module is configured to project a target image to a second display area in the first display area, and the second display area is determined based on a brightness parameter of the target ambient light signal.

[0152] In a possible implementation, the vehicle can further include a display device and / or a voice module. When the head-up display system stops displaying the target image containing the target content on the target glass, the display device can display the target image, and the voice module can voice remind the target content in the target image.

[0153] Based on the image display method provided in the above embodiments, the embodiments of the present application also provide an electronic device. FIG. 13 shows a structural schematic diagram of an electronic device provided by the embodiments of the present application. The electronic device can include a processor 1301 and a memory 1302 storing computer program instructions.

[0154] In particular, the processor 1301 can include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or can be configured to implement one or more integrated circuits that embody the embodiments of the present application.

[0155] The memory 1302 can include a mass storage that stores data or instructions. For example, but not limited to, the memory 1302 can include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. The memory 1302 can include removable or non-removable (or fixed) media, as appropriate. The memory 1302 can be internal or external to the data processing apparatus, as appropriate. In a particular embodiment, the memory 1302 is a non-volatile solid-state memory. In a particular embodiment, the memory 1302 includes read-only memory (ROM). The ROM can be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these, as appropriate.

[0156] The processor 1301 implements the image display method in the above-described embodiments by reading and executing computer program instructions stored in the memory 1302.

[0157] In one example, the electronic device can further include a communication interface 1303 and a bus 1310. As shown in FIG. 13, the processor 1301, the memory 1302, and the communication interface 1303 are connected through the bus 1310 and complete communication with each other.

[0158] The communication interface 1303 is mainly used to realize the communication between the modules, devices, units and / or equipment in the embodiments of the present application.

[0159] Bus 1310 includes hardware, software, or both, to couple components of the electronic device to each other and to couple components to other components in the environment. While Figure 1 shows bus 1310 as a single bus, bus 1310 can be implemented via one or more buses, such as a system bus or buses to connect the central processing unit(s) 1302 to memory 1304, peripheral devices, and to each other. Bus 1310 can include any interconnection or combination of interconnections suitable to implement a bus structure, including an Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), HyperTransport, Industry Standard Architecture (ISA) bus, InfiniBand, Low Pin Count (LPC) bus, memory bus, Micro Channel Architecture (MCA) bus, Peripheral Component Interconnect (PCI) bus, PCI Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association local (VLB) bus, or another suitable bus or interconnect. Bus 1310 can be implemented using any suitable bus structure or combination of bus structures.

[0160] Those skilled in the art will appreciate that embodiments of the present application can be readily used as a method, apparatus, or computer program product. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, and the like) embodying computer readable program code.

[0161] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions specified in the flowchart block or blocks or in the flowchart or block diagram block or blocks.

[0162] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks or in the flowchart or block diagram block or blocks.

[0163] These computer program instructions can also be loaded into computer or other programmable data processing devices, so that a series of operation steps are performed on the computer or other programmable devices to generate computer-implemented processes, thus the instructions executed on the computer or other programmable devices provide steps for implementing the functions specified in one or more flows of the flowchart and / or one or more blocks of the block diagram.

[0164] Although preferred embodiments of the application have been described, those skilled in the art will recognize that additional modifications and variations are possible in light of the above teachings. It is therefore intended that the appended claims be interpreted as including all such modifications and variations as fall within the scope of the application.

Claims

1. A head-up display system, wherein, include: An ambient light detection module is set in the first display area of ​​the target glass. The ambient light acquisition module is used to acquire the target ambient light signal, and the target ambient light signal represents the ambient light signal at the first display area. An image processing module is used to project a target image onto a second display area within the first display area, wherein the second display area is determined based on the brightness parameters of the target ambient light signal.

2. The system as claimed in claim 1, wherein, The ambient light detection module includes multiple brightness detection units, each of which is used to collect ambient light signals. The brightness parameters of the target ambient light signal include the brightness parameters of the ambient light signal collected by each brightness detection unit.

3. The system as described in claim 2, wherein, The plurality of brightness detection units are arranged in an array along the first direction.

4. The system as described in claim 2 or 3, wherein, The image processing module is specifically used for: Based on the brightness parameters output by each brightness detection unit, the upper and lower boundary positions of the second display area in the first direction are adjusted, wherein the brightness parameters of the ambient light signal collected by the brightness detection unit in the second display area are less than or equal to the target brightness threshold.

5. The system as described in claim 4, wherein, The upper and lower boundaries of the second display area are parallel in the first direction.

6. The system of claim 5, wherein, The image processing module is also used for: If the length of the adjusted second display area in the first direction meets the first image adjustment condition, then the size of the target image is reduced so that the entire content of the target image is projected onto the second display area, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction.

7. The system as claimed in claim 5, wherein, The image processing module is also used for: If the length of the adjusted second display area in the first direction meets the second image adjustment condition, then the size of the target image is reduced, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction; and the reduced target image is cropped according to a preset cropping method, and the cropped image is projected onto the second display area.

8. An image display method, wherein, include: Acquire the target ambient light signal of the first display area of ​​the target object, wherein the target object is a target glass or a display device; Based on the target ambient light signal, adjust the second display area within the first display area; Display part or all of the target image in the second display area.

9. The method of claim 8, wherein, The brightness parameters of the target ambient light signal include the brightness parameters of the ambient light signal collected by each of the multiple brightness detection units. Each brightness detection unit is used to collect the ambient light signal. The multiple brightness detection units are located in the first display area and are arranged in an array along the first direction.

10. The method of claim 9, wherein, Adjusting the second display area within the first display area includes: Based on the brightness parameters output by each brightness detection unit, the upper and lower boundary positions of the second display area in the first direction are adjusted, wherein the brightness parameters of the ambient light signal collected by the brightness detection unit in the second display area are less than or equal to the target brightness threshold.

11. The method as described in any one of claims 8-10, wherein, Displaying part or all of the target image in the second display area includes: Display the entire target image in the second display area; or... The size of the target image is reduced, and the entire reduced target image is displayed in the second display area, wherein the reduction ratio of the target image's length in the first direction is the same as the reduction ratio of the target image's length in the second direction; or... The size of the target image is reduced, wherein the reduction ratio of the length of the target image in the first direction is the same as the reduction ratio of the length of the target image in the second direction; and the reduced target image is cropped according to a preset cropping method, and the cropped image is displayed in the second display area.

12. A computer storage medium, wherein, When the instructions in the storage medium are executed by the processor, the processor is able to perform the image display method as described in any one of claims 8 to 11.

13. A vehicle, wherein, Including the head-up display system as described in any one of claims 1-7.

Images