Intersection guidance display method and device, electronic equipment and computer readable medium
By adjusting the size of the guidance arrow in AR-HUD, the visual width of the windshield of the front windshield of the vehicle and projected into the corresponding position to solve the problem of poor guidance arrows in the existing technology, and realize that the guidance arrow is fitted with the pavement. Improve driving safety and reliability.
Patent Information
- Application Number
- CN202310934945.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-27
- Publication Date
- 2025-01-28
AI Technical Summary
In the existing AR-HUD technology, the projection effect of the guide arrow is poor and cannot fit with the road surface, which causes the driver to be unable to control the road surface through the AR-HUD and cannot improve driving safety and reliability.
By obtaining the current visual width and location of the windshield of the front windshield of the vehicle, the guidance arrow is extracted from the map, and the size of the guidance arrow is adjusted according to the current visual width, and the adjusted guidance arrows are eventually projected into the current visual position.
It improves the projection effect of guiding arrows in AR-HUD, enabling them to fit with the pavement, and the driver can easily control the conditions of the pavement, thereby improving the safety and reliability of driving.
Smart Images
Figure CN119374625A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of driving guidance, and in particular to a method, device, electronic device and computer-readable medium for displaying intersection guidance. Background Art
[0002] With the continuous development of driving guidance technology, people's demand for various functions of automobiles is increasing. AR-HUD (Augmented Reality-Head Up Display) is a display that projects important driving information such as speed and navigation onto the windshield in front of the driver, allowing the driver to see the navigation information without lowering or turning his head.
[0003] In the related technology, only the projection position is calculated, and the AR generation effect of the guide arrow is not involved, and the guide arrow is not adjusted before projection. The projection effect is poor, and the guide arrow cannot fit the road surface, causing the driver to be unable to control the road conditions through AR-HUD and unable to improve driving safety and reliability. Summary of the invention
[0004] In view of this, the present application aims to propose a method, device, electronic device and computer-readable medium for intersection guidance display, which can adjust the guidance arrows, improve the projection effect of the guidance arrows in the AR-HUD, and make the guidance arrows fit the road surface. The driver can easily control the road conditions through the guidance arrows in the AR-HUD, thereby achieving the technical effect of improving driving safety and reliability.
[0005] In a first aspect of an embodiment of the present application, a method for displaying a road intersection guide is provided, the method comprising:
[0006] Obtain the current visual width and current visual position of the target intersection on the front windshield of the vehicle;
[0007] Extracting the guide arrow of the target intersection from the map;
[0008] According to the current visual width, the size of the guide arrow is adjusted;
[0009] The resized guide arrow is projected onto the current visual position.
[0010] In one embodiment, the method further comprises:
[0011] Acquire a first current distance between the vehicle and the target intersection;
[0012] Projecting the resized guide arrow onto the current visual position includes:
[0013] When the first current distance is a target distance in a target distance set, the guide arrow after size adjustment is projected onto the current visual position, and the target distance set includes at least one target distance.
[0014] In one embodiment, the method further comprises:
[0015] When the first current distance is smaller than a target distance in the target distance set, the guide arrow after the size adjustment is hidden.
[0016] In one embodiment, the target distance set includes at least two target distances, and further includes:
[0017] Determine, from the target distance set, a first target distance that is smaller than the first current distance and has a minimum difference with the first current distance;
[0018] According to the current visual width, the size of the guide arrow is adjusted, including:
[0019] Acquire a first visual width of the target intersection on the front windshield of the vehicle when a first current distance between the vehicle and the target intersection is the first target distance;
[0020] According to the first visual width, the size of the guide arrow is adjusted.
[0021] In one embodiment, the method further comprises:
[0022] When a first current distance between the vehicle and the first target intersection is less than a minimum target distance in the target distance set, a second visual width and a second visual position of the second target intersection on a front windshield of the vehicle are obtained.
[0023] In one implementation, adjusting the size of the guide arrow according to the current visual width includes:
[0024] The shape of the guide arrow is kept unchanged, and the width of the guide arrow is adjusted to be the same as the current visual width.
[0025] In one embodiment, after extracting the guide arrow of the target intersection from the map, the method further includes:
[0026] The guide arrows extracted from the map are rendered.
[0027] In a second aspect of an embodiment of the present application, a road intersection guidance display device is provided, the device comprising:
[0028] An acquisition module, used to acquire the current visual width and current visual position of the target intersection on the front windshield of the vehicle;
[0029] An extraction module, used for extracting the guide arrow of the target intersection from the map;
[0030] An adjustment module, used for adjusting the size of the guide arrow according to the current visual width;
[0031] The projection module is used to project the guide arrow with adjusted size onto the current visual position.
[0032] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the method described in the first aspect.
[0033] According to a fourth aspect of the embodiments of the present application, a computer-readable medium is provided, on which a computer program is stored, wherein when the program is executed by a processor, the method described in the first aspect is implemented.
[0034] Beneficial effects of this application:
[0035] The embodiment of the present application provides a method, device, electronic device and computer-readable medium for displaying intersection guidance, which obtains the current visual width and current visual position of the target intersection on the front windshield of the vehicle; extracts the guide arrow of the target intersection from the map; adjusts the size of the guide arrow according to the current visual width; and projects the guide arrow after the size adjustment to the current visual position. The guide arrow can be adjusted to improve the projection effect of the guide arrow in the AR-HUD, so that the guide arrow can fit the road surface, and the driver can easily control the road surface conditions through the guide arrow in the AR-HUD, thereby achieving the technical effect of improving driving safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.
[0037] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0038] Figure 1 This is a flow chart of a method for displaying intersection guidance provided by an embodiment of the present application;
[0039] Figure 2 It is an enlarged view of an intersection in a method for displaying intersection guidance provided by an embodiment of the present application;
[0040] Figure 3 A guide arrow extracted from an enlarged view of an intersection in an enlarged view of an intersection provided by an embodiment of the present application;
[0041] Figure 4 is a flow chart of another intersection guidance display method provided by an embodiment of the present application;
[0042] Figure 5 It is a schematic diagram of the framework of a road intersection guidance display device provided in one embodiment of the present application. DETAILED DESCRIPTION
[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.
[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0045] AR-HUD is an augmented reality head-up display. As the next generation of HUD, it replaces traditional mechanical instruments in the automotive field. The existing HUD head-up display can display speed information, speed limit information, mileage information, navigation information, vehicle status information and other information on the front windshield, while AR-HUD can combine traditional navigation with actual roads. The driver does not need to lower his head to check the navigation information on the mobile phone or the car's central control navigation screen to determine how to drive under the current road conditions. Instead, the driver can use the guidance information virtual image projected on the front windshield by AR-HUD to determine at a glance how to drive next.
[0046] In the existing AR-HUD technology, since only the projection position is calculated, the AR generation effect of the guide arrow is not involved, and the guide arrow is not adjusted before projection, resulting in poor projection effect, the guide arrow cannot fit the road surface, and the driver cannot control the road condition through AR-HUD, and the driving safety and reliability cannot be improved. Therefore, it is necessary to propose a road intersection guidance display method to address these problems.
[0047] Figure 1 is a flow chart of a method for displaying intersection guidance provided by an embodiment of the present application. Figure 2is an enlarged view of an intersection in a method for displaying intersection guidance provided by an embodiment of the present application, Figure 3 is a guide arrow extracted from an enlarged view of an intersection in an enlarged view of an intersection provided by an embodiment of the present application, such as Figure 1 As shown, this embodiment provides a method for displaying intersection guidance, the method comprising:
[0048] In step S101, the current visual width and current visual position of the target intersection on the front windshield of the vehicle are obtained;
[0049] In step S102, a guide arrow of the target intersection is extracted from a map;
[0050] In step S103, the size of the guide arrow is adjusted according to the current visual width;
[0051] In step S104, the guide arrow after resizing is projected onto the current visual position.
[0052] First, in step S101, the current visual width and current visual position of the target intersection at the front windshield of the vehicle are obtained. The target intersection is the intersection in front of the driver's vehicle. The driver can directly see the road section before the target intersection in front of the vehicle through the front windshield. The visual width and visual position of the target intersection seen by the driver through the front windshield are different from the actual width and actual position of the target intersection. In addition, due to different drivers driving different vehicles, different heights of drivers sitting in the driver's seat, different distances between the vehicle driven by the driver and the target intersection, or different distances between the front windshield of the vehicle and the driver's pupil, the visual width and visual position of the same target intersection seen by different drivers' pupils looking straight at the front windshield of the vehicle are different. Therefore, it is necessary to determine the current visual width and current visual position of the target intersection presented in the driver's field of vision through the front windshield.
[0053] Preferably, the driver's facial image can be captured in real time by a vehicle-mounted camera, the movement trajectory of the pupil in the facial image can be determined, and the three-dimensional coordinates of the pupil can be obtained. According to the three-dimensional coordinates of the driver's pupil and the target intersection, the current visual position and current visual width of the target intersection seen by the driver on the front windshield of the vehicle are calculated, such as using the line between the three-dimensional coordinates of the driver's pupil and the center point of the target intersection or the road in front of the target intersection as the driver's line of sight, and the intersection between the driver's line of sight and the windshield is the current visual position; such as using the line between the three-dimensional coordinates of the driver's pupil and the center points of the two side boundaries of the target intersection or the road in front of the target intersection as the driver's line of sight that can observe both sides of the target intersection boundary, and the distance between the intersection points between the driver's line of sight on both sides of the windshield is the current visual width.
[0054] Preferably, the on-board camera can also record the preset three-dimensional coordinates of the driver's pupils for different drivers, and calculate the average of the three-dimensional coordinates of the driver's pupils within one month by counting the three-dimensional coordinates of the driver's pupils in a recent period of time (such as 1 month) The preset three-dimensional coordinates of the driver's pupils can be used as the coordinate position of the driver's pupils when the driver drives the vehicle in a normal posture or a usual posture. In this way, the current visual width and the current visual width of the target intersection on the front windshield of the vehicle can be directly obtained through the pre-calculated preset three-dimensional coordinates of the driver's pupils without a significant movement of the preset three-dimensional coordinates of the driver's pupils, thereby quickly providing the driver with the projection of the intersection guide arrow.
[0055] Preferably, the current visual width and current visual width of the target intersection on the front windshield of the vehicle can change in real time according to the change of the three-dimensional coordinates of the driver's pupils or the change of the distance between the driver's vehicle and the target intersection. In other embodiments, the current visual width and current visual width of the target intersection on the front windshield of the vehicle can also be determined by other means, which are not specifically limited here.
[0056] Further, in step S102, the guide arrow of the target intersection is extracted from the map. Since the guide arrow projected on the front windshield of the vehicle is extracted from the map, the corresponding guide arrow can be extracted from the enlarged view of the intersection in the standard map. Figure 2 As shown, standard maps usually include a basic function: a magnified intersection map. The specific function of the magnified intersection map is to display a picture when the vehicle is approaching the target intersection. The picture includes the travel guidance through the target intersection. The guidance method is to draw a guide arrow at the target intersection to be passed. The guide arrow has the same shape as the target intersection, and the shape, size and proportion are regular.
[0057] Further, in step S103, the size of the guide arrow is adjusted according to the current visual width. Since the height and width of the enlarged view of the intersection returned by the standard map are fixed, the size of the guide arrow obtained from the enlarged view of the intersection is also fixed. In order to make the guide arrow on the front windshield seen by the driver fit the actual target intersection when the guide arrow is projected on the front windshield of the vehicle, it is necessary to adjust the size of the guide arrow extracted from the enlarged view of the intersection. Therefore, according to the current visual width of the target intersection on the front windshield of the vehicle obtained in step S101, the size of the guide arrow extracted from the enlarged view of the intersection is adjusted so that the width of the adjusted guide arrow is the same as the current visual width of the target intersection on the front windshield of the vehicle or the difference between the width of the guide arrow and the current visual width of the target intersection on the front windshield of the vehicle is less than a preset distance.
[0058] Finally, in step S104, the guide arrow after the size adjustment is projected onto the current visual position. The guide arrow adjusted in step S103 is projected onto the front windshield of the vehicle. Specifically, the center point of the adjusted guide arrow can be made to coincide with the current visual position of the target intersection on the front windshield, so that the guide arrow seen by the driver is in a state of being fitted with the actual road surface, thereby increasing the projection effect and facilitating improving the safety and reliability of driving.
[0059] Optionally, the method further comprises:
[0060] Acquire a first current distance between the vehicle and the target intersection;
[0061] Projecting the resized guide arrow onto the current visual position includes:
[0062] When the first current distance is a target distance in a target distance set, the guide arrow after size adjustment is projected onto the current visual position, and the target distance set includes at least one target distance.
[0063] Specifically, since the current visual position and current visual width of the target intersection seen by the driver will change with the distance between the vehicle and the target intersection, it is necessary to project corresponding guide arrows at different distances between the vehicle and the target intersection. When the first current distance between the vehicle and the target intersection is the same as the corresponding target distance between the vehicle and the target intersection, the size-adjusted guide arrow can be projected and displayed on the front windshield of the vehicle. For example, the target distance set can include multiple target distances, and the target distances can be 1500m, 1000m, 500m, 200m, 100m, 20m, etc. The target distance can be set according to actual needs and is not limited here.
[0064] During the driving process of the vehicle, when the first current distance between the vehicle and the target intersection is the same as the target distance in the pre-target distance set, a guide arrow will be projected, and the projection size of the guide arrow each time will be adjusted accordingly according to the current visual position and current visual width of the target intersection, so that the driver can intuitively observe that the guide arrow is in line with the actual road surface, thereby increasing the projection effect and improving driving safety and reliability.
[0065] Optionally, the method further comprises:
[0066] When the first current distance is smaller than a target distance in the target distance set, the guide arrow after the size adjustment is hidden.
[0067] Specifically, during the driving process of the vehicle, each time a target distance is traveled, the resized guide arrow corresponding to the target distance traveled will be hidden, so as to avoid affecting the presentation effect of the resized guide arrow displayed when the vehicle travels to the next target distance. For example, if the current distance between the vehicle and the target intersection is 900m, it means that the vehicle has completed the display of the resized guide arrow corresponding to the target distance of 1000m. Therefore, before the vehicle reaches the next target distance of 500m, the resized guide arrow corresponding to 1000m will be hidden, so that the resized guide arrow presented when the vehicle reaches the next target distance of 500m will not be repeated with the resized guide arrow corresponding to 1000m, so as to avoid affecting the driver's driving experience and improve the safety and reliability of driving.
[0068] Optionally, the target distance set includes at least two target distances and further includes:
[0069] Determine, from the target distance set, a first target distance that is smaller than the first current distance and has a minimum difference with the first current distance;
[0070] According to the current visual width, the size of the guide arrow is adjusted, including:
[0071] Acquire a first visual width of the target intersection on the front windshield of the vehicle when a first current distance between the vehicle and the target intersection is the first target distance;
[0072] According to the first visual width, the size of the guide arrow is adjusted.
[0073] Specifically, when the vehicle is about to reach a certain target distance, the visual width of the target intersection on the front windshield of the vehicle can be obtained according to the target distance. For example, the first current distance between the current vehicle and the target intersection is 600m. According to the target distances in the target distance set, the target distance with the smallest difference from the first current distance of 600m is 500m. The target distance of 500m is taken as the first target distance, and when the vehicle is 600m away from the target intersection, the first visual width of the target intersection on the front windshield of the vehicle is obtained in advance. In this way, when the vehicle has not yet reached a certain target distance from the target intersection, the first visual width of the target intersection on the front windshield of the vehicle at the target distance is pre-calculated or the first visual width recorded in the historical data of the vehicle passing the target intersection in the past is pre-extracted. According to the first visual width, the size of the guide arrow is adjusted in advance, so that when the vehicle travels to a distance of 500m from the target intersection, the guide arrow with the pre-adjusted size can be directly displayed, thereby quickly providing the driver with the intersection guidance display function.
[0074] Optionally, the method further comprises:
[0075] When a first current distance between the vehicle and the first target intersection is less than a minimum target distance in the target distance set, a second visual width and a second visual position of the second target intersection on a front windshield of the vehicle are obtained.
[0076] Specifically, since the vehicle will pass through multiple target intersections during driving, it is necessary to prepare for the display of the guide arrow of the next target intersection at the current target intersection, so that when the target distance is between the vehicle and the next target intersection, the pre-adjusted guide arrow can be directly displayed. According to the above content, when the vehicle is about to pass the first target intersection, the current visual width and current visual position of the second target intersection on the front windshield of the vehicle can be obtained in advance based on the target distance between the vehicle and the second target intersection. For example, the first current distance between the current vehicle and the first target intersection is 15m, which is less than the minimum target distance of 20m in the target distance set. , the second current distance 1600m between the current vehicle and the second target intersection is obtained, and according to the above embodiment, the target distance with the smallest difference from the second current distance 1600m in the target distance set is 1500m. Therefore, it is necessary to use the target distance 1500m as the second target distance, and when the vehicle is 1600m away from the second target intersection, obtain in advance the second visual width and the second visual position of the second target intersection on the front windshield of the vehicle, so as to achieve the preparation for adjusting the size of the guide arrow of the second target intersection in advance when the vehicle has not passed the first target intersection, thereby achieving the technical effect of quickly providing the driver with the intersection guidance display function.
[0077] Optionally, adjusting the size of the guide arrow according to the current visual width includes:
[0078] The shape of the guide arrow is kept unchanged, and the width of the guide arrow is adjusted to be the same as the current visual width.
[0079] Specifically, since the size of the guide arrow in the enlarged image of the intersection is different from the size of the guide arrow actually projected onto the front windshield of the vehicle, if the guide arrow in the enlarged image of the intersection is directly projected according to the size, the driver may not be able to see the projected guide arrow clearly on the front windshield of the vehicle; therefore, it is necessary to first extract the shape of the guide arrow from the enlarged image of the intersection through image algorithm processing. The extracted guide arrow is as follows: Figure 3 As shown, while keeping the shape of the guide arrow unchanged, the width of the guide arrow is adjusted to be the same as the current visual width of the target intersection on the front windshield of the vehicle.
[0080] In other embodiments, the width of the guide arrow can also be adjusted according to actual needs, so that the driver can observe from the front windshield of the vehicle that the projected guide arrow is aligned with the target intersection. The purpose is to provide auxiliary guidance for the driver during driving.
[0081] Optionally, after extracting the guide arrow of the target intersection from the map, the method further includes:
[0082] The guide arrows extracted from the map are rendered.
[0083] Optionally, since the guide arrows extracted from the map are relatively rough, in order to make the virtual image of the guide arrows on the front windshield of the vehicle finally present a 3D effect, the guide arrows can be further rendered. Specifically, the page data can be rendered in any available way, which is not limited to this embodiment of the present application.
[0084] Figure 4 is a flow chart of another intersection guidance method provided by an embodiment of the present application. Figure 4 As shown, this embodiment provides a method for intersection guidance.
[0085] In actual application, when the vehicle driven by the driver is connected to the standard map system and the navigation function in the standard map system is turned on to start driving, the standard map system triggers and displays the enlarged view of the intersection where the current vehicle is located by calling back the navigation data, which is the information of each intersection recorded in the historical navigation. The shape of the guide arrow in the enlarged view of the intersection of the current target intersection is extracted according to the image algorithm processing, and the extracted guide arrow is rendered, so that the guide arrow with 3D effect can be presented on the front windshield of the vehicle. At the same time, by calling back the navigation data, the distance between the current vehicle and the target intersection is extracted. The size of the guide arrow extracted from the enlarged image of the intersection is adjusted according to the current distance between the vehicle and the target intersection, the current distance between the vehicle and the target intersection, and the visual width and visual position of the target intersection on the front windshield of the vehicle, and the size-adjusted guide arrow is projected on the front windshield of the vehicle to realize AR display, so as to achieve the technical effect of making the guide arrow fit with the road surface, and the driver can easily control the road condition through the guide arrow in the AR-HUD, thereby improving the safety and reliability of driving.
[0086] Figure 5 is a schematic diagram of a framework of a road intersection guidance device provided by an embodiment of the present application, such as Figure 5 As shown, this embodiment provides a road intersection guidance device, the device comprising:
[0087] An acquisition module 11 is used to acquire the current visual width and current visual position of the target intersection on the front windshield of the vehicle;
[0088] An extraction module 12 is used to extract the guide arrow of the target intersection from the map;
[0089] An adjustment module 13, used for adjusting the size of the guide arrow according to the current visual width;
[0090] The projection module 14 is used to project the guide arrow after the size adjustment onto the current visual position.
[0091] Optionally, the device further comprises:
[0092] A first acquisition unit, used to acquire a first current distance between the vehicle and the target intersection;
[0093] The first projection unit is used to project the guide arrow after the size adjustment onto the current visual position, including:
[0094] The first projection subunit is used to project the size-adjusted guide arrow onto the current visual position when the first current distance is a target distance in a target distance set, wherein the target distance set includes at least one target distance.
[0095] Optionally, the device further comprises:
[0096] The first hiding unit is used to hide the guide arrow after the size adjustment when the first current distance is smaller than the target distance in the target distance set.
[0097] Optionally, the device further comprises:
[0098] A first determining unit, configured to determine, from the target distance set, a first target distance that is smaller than the first current distance and has a minimum difference with the first current distance;
[0099] The first adjustment unit is used to adjust the size of the guide arrow according to the current visual width, including:
[0100] A second acquisition unit, configured to acquire a first visual width of the target intersection on a front windshield of the vehicle when a first current distance between the vehicle and the target intersection is the first target distance;
[0101] The first adjustment subunit is used to adjust the size of the guide arrow according to the first visual width.
[0102] Optionally, the device further comprises:
[0103] The third acquisition unit is used to acquire a second visual width and a second visual position of the second target intersection on the front windshield of the vehicle when a first current distance between the vehicle and the first target intersection is less than a minimum target distance in the target distance set.
[0104] Optionally, the adjustment module 13 includes:
[0105] The second adjustment unit is used to keep the shape of the guide arrow unchanged and adjust the width of the guide arrow to be the same as the current visual width.
[0106] Optionally, the device further comprises:
[0107] The first rendering unit is used to render the guide arrow extracted from the map after the guide arrow of the target intersection is extracted from the map.
[0108] Based on the same inventive concept, another embodiment of the present application further provides an electronic device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement any of the methods described above.
[0109] Based on the same inventive concept, another embodiment of the present application further provides a computer-readable medium on which a computer program is stored, wherein when the program is executed by a processor, any of the methods described above is implemented.
[0110] As for the device, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
[0111] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0112] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, devices, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0113] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, 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 other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0114] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.
[0115] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.
[0116] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.
[0117] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.
[0118] The above is a detailed introduction to a method, device, electronic device and computer-readable medium for intersection guidance display provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A method for displaying intersection guidance, characterized in that: The method comprises: Obtain the current visual width and current visual position of the target intersection on the front windshield of the vehicle; Extracting the guide arrow of the target intersection from the map; According to the current visual width, the size of the guide arrow is adjusted; The resized guide arrow is projected onto the current visual position.
2. The intersection guidance display method according to claim 1, characterized in that: The method further comprises: Acquire a first current distance between the vehicle and the target intersection; Projecting the resized guide arrow onto the current visual position includes: When the first current distance is a target distance in a target distance set, the guide arrow after size adjustment is projected onto the current visual position, and the target distance set includes at least one target distance.
3. The intersection guidance display method according to claim 2, characterized in that: The method further comprises: When the first current distance is smaller than a target distance in the target distance set, the guide arrow after the size adjustment is hidden.
4. The intersection guidance display method according to claim 2, characterized in that: The target distance set includes at least two target distances, and further includes: Determine, from the target distance set, a first target distance that is smaller than the first current distance and has a minimum difference with the first current distance; According to the current visual width, the size of the guide arrow is adjusted, including: Acquire a first visual width of the target intersection on the front windshield of the vehicle when a first current distance between the vehicle and the target intersection is the first target distance; According to the first visual width, the size of the guide arrow is adjusted.
5. The intersection guidance display method according to claim 1, characterized in that: The method further comprises: When a first current distance between the vehicle and the first target intersection is less than a minimum target distance in the target distance set, a second visual width and a second visual position of the second target intersection on a front windshield of the vehicle are obtained.
6. The intersection guidance display method according to claim 1, characterized in that: The adjusting the size of the guide arrow according to the current visual width includes: The shape of the guide arrow is kept unchanged, and the width of the guide arrow is adjusted to be the same as the current visual width.
7. The intersection guidance display method according to claim 1, characterized in that: After extracting the guide arrow of the target intersection from the map, the method further includes: The guide arrows extracted from the map are rendered.
8. A road intersection guidance display device, characterized in that: The device comprises: An acquisition module, used to acquire the current visual width and current visual position of the target intersection on the front windshield of the vehicle; An extraction module, used for extracting the guide arrow of the target intersection from the map; An adjustment module, used for adjusting the size of the guide arrow according to the current visual width; The projection module is used to project the guide arrow with adjusted size onto the current visual position.
9. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory, wherein the processor executes the computer program to implement the method according to any one of claims 1 to 7.
10. A computer-readable medium, characterized in that A computer program is stored thereon, wherein when the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.