A method and related device for evaluating the visual clarity of the driver's side window of a car.

CN121007717BActive Publication Date: 2026-09-01SAIC MOTOR
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Patent Information

Application Number
CN202410647825.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2026-09-01
Estimated Expiration
2044-05-23

AI Technical Summary

Technical Problem

但是,现有对角窗的尺寸设计多是基于既往设计经验,并未基于角窗尺寸与驾驶员视觉的关联性进行设计,导致设计的角窗无法满足驾驶员对视野清晰度的需求,降低了用户体验感,甚至对驾驶员视野产生干扰,使其无法准确发现A柱视野盲区内存在的安全隐患

Benefits of technology

[0044]Using the above technical solution, this application provides a method and related device for evaluating the visual clarity of the driver's side corner window of an automobile. By configuring the center of the ellipsoid of the target eye closest to the driver's side door on the driver's model as the starting point, the guide groove of the driver's side corner window is projected onto a first projection plane and a second projection plane, thus obtaining the projection of the boundary of the driver's side corner window onto the projection plane. Subsequently, using the center point of the left eye ellipsoid and the center of the right eye ellipsoid as starting points, the visible boundary of the driver's side corner window is projected onto the first projection plane and the second projection plane respectively, thereby obtaining the projections of the visible areas of the left and right eyes through the corner window onto each projection plane. Since greater overlap in the visual areas of both eyes leads to higher visual clarity, and the obstruction of the visual area by the guide channel can be avoided when the visual areas of both eyes fall on the same side, this application achieves a visual clarity assessment result for the driver's side corner window on the projection plane. This is because the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points on the same projection plane is not less than a preset threshold, and the projections of each visible boundary on the projection plane are all located on the side where the guide channel projection points towards the front of the vehicle. This outputs a visual clarity assessment result indicating that the clarity of the driver's side corner window on the projection plane is acceptable. This achieves an accurate assessment of the visual clarity of the driver's side corner window, thus providing a reference for automakers when designing corner windows and improving the user experience. Therefore, this application achieves an accurate assessment of the visual clarity of the driver's side corner window and improves the user experience.

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Abstract

This application discloses a method and related apparatus for evaluating the visual clarity of the driver's side window of a car, relating to the field of automotive design. The method includes: obtaining the projection of the guide groove of the driver's side window onto a first projection plane and a second projection plane; projecting the driver's side window onto the first and second projection planes respectively, using the centers of the left and right eye ellipsoids as starting points; ensuring that the overlapping area of ​​the projections of each driver's side window on the same projection plane is not less than a preset threshold; and that the projections of each driver's side window on the same projection plane are all located on the side where the guide groove projection points towards the front of the vehicle; and outputting a visual clarity evaluation result indicating that the clarity of the driver's side window on that projection plane is acceptable. Based on the overlapping area of ​​the projections of the driver's side window and the positional relationship between the projection of the driver's side window and the guide groove projection, this application achieves an accurate evaluation of the visual clarity of the driver's side window, improving the user experience.
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Description

Technical Field

[0001] This application relates to the field of automotive design technology, and in particular to a method and related device for evaluating the visibility of the driver's side window of an automobile. Background Technology

[0002] Corner windows on car doors are a common design feature in the automotive industry. By incorporating corner windows, the vehicle's structural strength can be enhanced while reducing blind spots caused by A-pillar obstruction, thus improving the driver's visibility. However, existing corner window designs are mostly based on past design experience and do not consider the correlation between corner window size and driver vision. This results in corner windows that fail to meet the driver's need for clear visibility, reducing the user experience and even interfering with the driver's vision, making it difficult for them to accurately detect safety hazards in the A-pillar blind spot. Summary of the Invention

[0003] In view of the above problems, this application provides a method and related device for evaluating the visibility clarity of the driver's side corner window of a car, so as to achieve accurate evaluation of the visibility clarity of the driver's side corner window, thereby providing a reference for car manufacturers when designing corner windows and improving the user experience. The specific solution is as follows:

[0004] The first aspect of this application provides a method for evaluating the visibility clarity of the driver's side window of a car, including:

[0005] The guide groove of the driver's side corner window is projected onto the first and second projection planes. The first and second projection planes are both perpendicular to the plane where the lowest points of each tire of the vehicle are located. The first and second projection planes are both in front of the foremost point of the vehicle. The distance between the first projection plane and the foremost point of the vehicle is less than the distance between the second projection plane and the foremost point of the vehicle. The first and second projection planes are both perpendicular to the vehicle centerline in the plane where the lowest points of each tire of the vehicle are located. The vehicle centerline is the projection of the line connecting the foremost point and the rearmost point of the vehicle onto the plane where the lowest points of each tire of the vehicle are located. The starting point of the guide groove projection is the center of the target eye ellipsoid closest to the driver's side door of the driver model. The target eye ellipsoid is either the left eye ellipsoid or the right eye ellipsoid.

[0006] Starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid, the visible boundary of the driver's side corner window is projected onto the first projection plane and the second projection plane, respectively.

[0007] For the first projection surface and the second projection surface: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection surface is not less than a preset threshold, and when the projections of each of the visible boundaries in the projection surface are all located on the side of the guide groove pointing towards the front of the vehicle in the projection surface, the output content is the visual clarity evaluation result of the driver's side corner window in the projection surface, indicating that the clarity is qualified.

[0008] In one possible implementation, the method for evaluating the visual clarity of the driver's side window of a vehicle further includes:

[0009] For the first projection surface and the second projection surface: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection surface is less than the preset threshold, and the projections of each of the visible boundaries in the projection surface are not uniformly located on the side of the guide groove projection pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window being unqualified in the projection surface.

[0010] In one possible implementation, before the guide groove of the driver's side corner window is projected onto the first and second projection planes, the method for evaluating the visual clarity of the driver's side corner window further includes:

[0011] With the center line of the driver's neck as the axis, the left eye ellipsoid and the right eye ellipsoid are rotated synchronously so that the field of vision pointing ray passes through the center point of the driver's side corner window. The starting point of the field of vision pointing ray is the center point of the line connecting the center of the left eye ellipsoid and the center of the right eye ellipsoid. The field of vision pointing ray is parallel to the major axis direction line of the left eye ellipse and / or the right eye ellipse.

[0012] In one possible implementation, obtaining the guide groove projection of the driver's side corner window onto the first and second projection planes includes:

[0013] Starting from the center of the target eye ellipsoid, a first ray and a second ray are generated respectively. The first ray passes through the first end point of the guide groove, and the second ray passes through the second end point of the guide groove.

[0014] A diverging surface is constructed based on the first ray, the second ray, and the outer edge of the guide groove. The projection of the diverging surface onto the first projection surface is determined as the guide groove projection onto the first projection surface, and the projection of the diverging surface onto the second projection surface is determined as the guide groove projection onto the second projection surface.

[0015] In one possible implementation, projecting the visible boundary of the driver's side corner window onto the first projection plane and the second projection plane, respectively, starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid, includes:

[0016] Starting from the target eye ellipsoid, multiple rays are generated, each ray passing through one end of the corner window, and the end points passed by each ray are different;

[0017] An initial divergence surface is constructed based on two rays passing through the two endpoints of the target edge and the target edge, which is an edge line of the driver's side corner window;

[0018] When all the diverging surfaces meet the preset conditions, the intersection curves of each initial diverging surface and the driver's side corner window are obtained respectively;

[0019] Multiple diverging surfaces are constructed based on each of the rays and each of the intersecting curves. The closed surface formed by the curves intersecting each of the diverging surfaces and the first projection surface is determined as the projection of the visible boundary of the driver's side corner window onto the first projection surface. The closed surface formed by the curves intersecting each of the diverging surfaces and the second projection surface is determined as the projection of the visible boundary of the driver's side corner window onto the second projection surface.

[0020] In one possible implementation, the preset conditions include:

[0021] The diverging surface does not intersect with the interfering surface, which is any one of the following: the door panel trim, the corner window sealing strip, the corner window black edge, the corner window guide groove, and the door panel outer water cut.

[0022] A second aspect of this application provides a system for evaluating the visibility of a vehicle's driver's side window, comprising:

[0023] The first projection module is used to obtain the projection of the guide groove of the driver's side corner window onto the first projection plane and the second projection plane. The first projection plane and the second projection plane are both perpendicular to the plane where the lowest point of each tire of the vehicle is located. The first projection plane and the second projection plane are both in front of the foremost point of the vehicle. The distance between the first projection plane and the foremost point of the vehicle is less than the distance between the second projection plane and the foremost point of the vehicle. The first projection plane and the second projection plane are both perpendicular to the vehicle centerline in the plane where the lowest point of each tire of the vehicle is located. The vehicle centerline is the projection of the line connecting the foremost point of the vehicle and the rearmost point of the vehicle onto the plane where the lowest point of each tire of the vehicle is located. The starting point of the guide groove projection is the center of the target eye ellipsoid closest to the driver's side door of the driver model. The target eye ellipsoid is either the left eye ellipsoid or the right eye ellipsoid.

[0024] The second projection module is used to project the visible boundary of the driver's side corner window onto the first projection plane and the second projection plane, respectively, starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid.

[0025] The evaluation module is used to evaluate the visual clarity of the driver's side corner window on the projection surface when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points on the first projection surface and the second projection surface is not less than a preset threshold, and the projections of each visible boundary on the projection surface are all located on the side where the guide groove projection points towards the front of the vehicle.

[0026] In one possible implementation, the evaluation module is further configured as follows:

[0027] For the first projection surface and the second projection surface: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection surface is less than the preset threshold, and the projections of each of the visible boundaries in the projection surface are not uniformly located on the side of the guide groove projection pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window being unqualified in the projection surface.

[0028] In one possible implementation, the system for assessing the visibility of the driver's side window of a car further includes: a preprocessing module.

[0029] The preprocessing module is used to synchronously rotate the left eye ellipsoid and the right eye ellipsoid around the center line of the driver's neck model before the guide groove of the driver's side corner window is projected onto the first projection plane and the second projection plane, so that the visual field pointing ray passes through the center point of the driver's side corner window. The starting point of the visual field pointing ray is the center point of the line connecting the center of the left eye ellipsoid and the center of the right eye ellipsoid. The visual field pointing ray is parallel to the major axis direction line of the left eye ellipse and / or the right eye ellipse.

[0030] In one possible implementation, the first projection module is configured as follows:

[0031] Starting from the center of the target eye ellipsoid, a first ray and a second ray are generated respectively. The first ray passes through the first end point of the guide groove, and the second ray passes through the second end point of the guide groove.

[0032] A diverging surface is constructed based on the first ray, the second ray, and the outer edge of the guide groove. The projection of the diverging surface onto the first projection surface is determined as the guide groove projection onto the first projection surface, and the projection of the diverging surface onto the second projection surface is determined as the guide groove projection onto the second projection surface.

[0033] In one possible implementation, the second projection module is configured as follows:

[0034] Starting from the target eye ellipsoid, multiple rays are generated, each ray passing through one end of the corner window, and the end points passed by each ray are different;

[0035] An initial divergence surface is constructed based on two rays passing through the two endpoints of the target edge and the target edge, which is an edge line of the driver's side corner window;

[0036] When all the diverging surfaces meet the preset conditions, the intersection curves of each initial diverging surface and the driver's side corner window are obtained respectively;

[0037] Multiple diverging surfaces are constructed based on each of the rays and each of the intersecting curves. The closed surface formed by the curves intersecting each of the diverging surfaces and the first projection surface is determined as the projection of the visible boundary of the driver's side corner window onto the first projection surface. The closed surface formed by the curves intersecting each of the diverging surfaces and the second projection surface is determined as the projection of the visible boundary of the driver's side corner window onto the second projection surface.

[0038] In one possible implementation, the preset condition in the second projection module is set as follows:

[0039] The diverging surface does not intersect with the interfering surface, which is any one of the following: the door panel trim, the corner window sealing strip, the corner window black edge, the corner window guide groove, and the door panel outer water cut.

[0040] A third aspect of this application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0041] The memory is used to store computer programs;

[0042] The processor is used to execute the computer program so that the electronic device can implement the method for evaluating the visual clarity of the driver's side window of a car as described in the first aspect or any implementation thereof.

[0043] The fifth aspect of this application provides a computer storage medium carrying one or more computer programs that, when executed by an electronic device, enable the electronic device to perform the method for evaluating the visual clarity of the driver's side window of a car as described in the first aspect or any implementation thereof.

[0044] Using the above technical solution, this application provides a method and related device for evaluating the visual clarity of the driver's side corner window of an automobile. By configuring the center of the ellipsoid of the target eye closest to the driver's side door on the driver's model as the starting point, the guide groove of the driver's side corner window is projected onto a first projection plane and a second projection plane, thus obtaining the projection of the boundary of the driver's side corner window onto the projection plane. Subsequently, using the center point of the left eye ellipsoid and the center of the right eye ellipsoid as starting points, the visible boundary of the driver's side corner window is projected onto the first projection plane and the second projection plane respectively, thereby obtaining the projections of the visible areas of the left and right eyes through the corner window onto each projection plane. Since greater overlap in the visual areas of both eyes leads to higher visual clarity, and the obstruction of the visual area by the guide channel can be avoided when the visual areas of both eyes fall on the same side, this application achieves a visual clarity assessment result for the driver's side corner window on the projection plane. This is because the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points on the same projection plane is not less than a preset threshold, and the projections of each visible boundary on the projection plane are all located on the side where the guide channel projection points towards the front of the vehicle. This outputs a visual clarity assessment result indicating that the clarity of the driver's side corner window on the projection plane is acceptable. This achieves an accurate assessment of the visual clarity of the driver's side corner window, thus providing a reference for automakers when designing corner windows and improving the user experience. Therefore, this application achieves an accurate assessment of the visual clarity of the driver's side corner window and improves the user experience. Attached Figure Description

[0045] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0046] Figure 1 A flowchart illustrating a method for evaluating the visual clarity of the driver's side window of a car, as provided in this application;

[0047] Figure 2 A schematic diagram illustrating the positional relationship between a first projection plane, a second projection plane, and a vehicle, provided in an embodiment of this application;

[0048] Figure 3 A schematic diagram showing the positional relationship between the first projection plane, the second projection plane, and the vehicle centerline, provided for embodiments of this application;

[0049] Figure 4 A schematic diagram illustrating the positional relationship between a driver's side corner window and its guide groove, provided for an embodiment of this application;

[0050] Figure 5 A schematic diagram illustrating the first positional relationship between the projection of the driver's side corner window and the guide rail projection from different starting points on the same projection plane, provided for an embodiment of this application.

[0051] Figure 6A schematic diagram illustrating the second positional relationship between the projection of the driver's side corner window and the guide rail projection from different starting points on the same projection plane, provided for an embodiment of this application.

[0052] Figure 7 A schematic diagram illustrating the third positional relationship between the projection of the driver's side corner window and the guide rail projection from different starting points on the same projection plane, provided for embodiments of this application;

[0053] Figure 8 A schematic diagram illustrating the fourth positional relationship between the projection of the driver's side corner window and the projection of the guide rail from different starting points on the same projection plane, provided for embodiments of this application;

[0054] Figure 9 A schematic diagram illustrating the fifth positional relationship between the projection of the driver's side corner window and the guide rail projection from different starting points on the same projection plane, provided for embodiments of this application;

[0055] Figure 10 A schematic diagram of the neck centerline of a driver model provided in an embodiment of this application;

[0056] Figure 11 A schematic diagram showing the initial position of the field of view pointing towards the ray, provided for an embodiment of this application;

[0057] Figure 12 A schematic diagram illustrating the process by which the line of sight passes through the center point of the driver's side corner window, as provided in an embodiment of this application.

[0058] Figure 13 A schematic diagram illustrating the process of obtaining the guide groove projection provided in an embodiment of this application;

[0059] Figure 14 A schematic diagram of a driver's side corner window provided in an embodiment of this application;

[0060] Figure 15 A schematic diagram of the driver's side corner window with edge line adjustment provided in an embodiment of this application;

[0061] Figure 16 A schematic diagram of the guide groove projection and the driver's side corner window projection in each projection plane provided in the embodiments of this application;

[0062] Figure 17 A block diagram of a system for evaluating the visual clarity of the driver's side window of an automobile, provided in this application;

[0063] Figure 18 This is a schematic diagram of the structure of an electronic device provided in this application. Detailed Implementation

[0064] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0065] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0066] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0067] It should be noted that, through extensive experiments, the researchers in this application discovered that focusing occurs when the driver's visual fields overlap, resulting in higher visual clarity. Conversely, when the visual fields do not overlap, visual clarity is lower. Furthermore, since corner windows are typically fixed installations, guide channels are usually installed at the intersection of the corner window and the main window to ensure installation strength and without affecting window operation. If the corner window is too small, causing the visual fields of both eyes to fall on opposite sides of the guide channel, the guide channel will create a blind spot, further reducing visual clarity.

[0068] The first aspect of this application provides a method for evaluating the visibility clarity of the driver's side corner window of a car, such as... Figure 1 As shown, the method for evaluating the visibility of the driver's side window of a car includes:

[0069] S101. Obtain the guide groove projection of the driver's side corner window on the first projection plane and the second projection plane. The first projection plane and the second projection plane are both perpendicular to the plane where the lowest point of each tire of the vehicle is located. The first projection plane and the second projection plane are both in front of the foremost point of the vehicle. The distance between the first projection plane and the foremost point of the vehicle is less than the distance between the second projection plane and the foremost point of the vehicle. The first projection plane and the second projection plane are both perpendicular to the vehicle centerline in the plane where the lowest point of each tire of the vehicle is located. The vehicle centerline is the projection of the line connecting the foremost point of the vehicle and the rearmost point of the vehicle on the plane where the lowest point of each tire of the vehicle is located. The starting point of the guide groove projection is the center of the target eye ellipsoid closest to the driver's side door of the driver model. The target eye ellipsoid is either the left eye ellipsoid or the right eye ellipsoid.

[0070] It should be noted that the positional relationship between the aforementioned first projection plane, second projection plane, and the vehicle can be as follows: Figure 2 and Figure 3 As shown:

[0071] like Figure 2 The diagram shows the positional relationship between the first projection plane, the second projection plane, and the vehicle. Both the first projection plane S1 and the second projection plane S2 are perpendicular to the plane S3 where the lowest points of each tire of the vehicle are located. The distance between the first projection plane S1 and the foremost point of the vehicle is 1m, and the distance between the second projection plane S2 and the foremost point of the vehicle is 3m.

[0072] In one possible implementation, the distance between the first projection plane S1 and the foremost point of the vehicle can be determined based on the distance between the vehicle stop line and the pedestrian crossing. For example, the distance between the vehicle stop line and the pedestrian crossing is not less than 1m and not more than 3m.

[0073] like Figure 3 The diagram shows the positional relationship between the first projection plane, the second projection plane, and the vehicle centerline. Both the first projection plane S1 and the second projection plane S2 are perpendicular to the projection L1 of the vehicle centerline onto the plane containing the lowest points of each tire. Both the first projection plane S1 and the second projection plane S2 are perpendicular to the plane S3 containing the lowest points of each tire.

[0074] In one possible implementation, the foremost and rearmost points of the vehicle can be, from a top-down perspective, the foremost and rearmost points of the vehicle body.

[0075] In one possible implementation, the first projection plane, the second projection plane, the plane where the lowest point of each tire of the vehicle is located, and the driver model can be physical models or virtual models.

[0076] It should be noted that, in practical applications, the eye model of the aforementioned driver model can be, in addition to the ellipsoid described in this application, a sphere, a circular surface, or other shapes marked with the direction of the line of sight. This application does not impose further limitations on this.

[0077] It should be noted that, in practical application scenarios, this application sets the target eye ellipsoid as either a left or right eye ellipsoid and configures the starting point of the guide groove projection to be the center of the target eye ellipsoid closest to the driver's side door, thereby enabling the application to be used in the design of left-hand drive or right-hand drive vehicles and improving the applicability of this application.

[0078] In one possible implementation, the positional relationship between the aforementioned driver's side corner window and its guide groove can be as follows: Figure 4As shown, the driver's side corner window 41 is located on the side of the guide groove 42 closer to the front of the vehicle. Arrow 43 points in the direction of the front of the vehicle, and arrow 44 points in the direction of the rear of the vehicle. Since the guide groove represents the visible boundary of the driver's side corner window, that is, the area of ​​the guide groove 42 away from the front of the vehicle does not belong to the driver's side corner window area, this application obtains the projection of the boundary of the driver's side corner window onto the projection plane by projecting the guide groove of the driver's side corner window onto the first projection plane and the second projection plane, starting from the center point of the target eye ellipsoid closest to the driver's side door of the driver model.

[0079] S102. Starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid, project the visible boundary of the driver's side corner window onto the first projection plane and the second projection plane, respectively.

[0080] It should be noted that, in practical applications, the projection obtained after projecting the visible boundary of the driver's side corner window onto the first and second projection planes respectively represents the visible area of ​​both eyes through the corner window. Because the distance between the eyes causes a difference in the visible area of ​​each eye through the driver's side corner window, and because the greater the overlap of the visible areas of both eyes, the higher the visual clarity, the better. Therefore, this application configures the projection of the visible boundary of the driver's side corner window onto the first and second projection planes respectively, starting from the center of the left and right eye ellipsoids, to obtain the visible areas of the left and right eyes through the driver's side corner window. Then, subsequent steps utilize the overlapping area of ​​the visible areas to evaluate the visual clarity.

[0081] It should be noted that in practical applications, the aforementioned visible boundary can be the closed boundary of the visible area of ​​the driver's side corner window.

[0082] S103. For the first projection plane and the second projection plane: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection plane is not less than a preset threshold, and when the projections of each visible boundary in the projection plane are all located on the side of the guide groove in the projection plane pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window in the projection plane, indicating that the clarity is qualified.

[0083] It should be noted that in practical applications, the larger the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points, the higher the clarity of the field of vision when the eyes observe through the driver's side corner window. At the same time, since the guide groove projection represents the visible boundary of the driver's side corner window, if the projections of each visible boundary in a projection plane are all located on the side of the guide groove projection pointing towards the front of the vehicle, it means that the visible area observed by the eyes through the driver's side corner window does not exceed the visible boundary of the driver's side corner window, thus avoiding the guide groove from obstructing the visible area.

[0084] It should be noted that in practical applications, different vehicle models have different requirements for the field of view of the corner windows. Therefore, when there are differences in the field of view clarity assessment results of the two projection surfaces, one of the two projection surfaces can be selected as the final assessment result according to the actual application scenario. For example, if a small or medium-sized sedan has a high requirement for the field of view of the corner windows at close range, and the field of view clarity assessment result of the first projection surface shows that the clarity of the driver's side corner window on that projection surface is unqualified, while the field of view clarity assessment result of the second projection surface shows that the clarity of the driver's side corner window on that projection surface is qualified, then the final field of view clarity assessment result for the driver's side corner window of that vehicle is unqualified.

[0085] This application obtains the projection of the driver's side corner window's boundary onto the projection planes by configuring the center of the target eye ellipsoid closest to the driver's side door of the driver model as the starting point, and projecting the guide groove of the driver's side corner window onto the first and second projection planes. Subsequently, starting from the center point of the left eye ellipsoid and the center of the right eye ellipsoid, the visible boundary of the driver's side corner window is projected onto the first and second projection planes respectively, thereby obtaining the projections of the visible areas of the left and right eyes through the corner window onto each projection plane. Since greater overlap in the visual areas of both eyes leads to higher visual clarity, and the obstruction of the visual area by the guide channel can be avoided when the visual areas of both eyes fall on the same side, this application achieves a visual clarity assessment result for the driver's side corner window on the projection plane. This is because the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points on the same projection plane is not less than a preset threshold, and the projections of each visible boundary on the projection plane are all located on the side where the guide channel projection points towards the front of the vehicle. This outputs a visual clarity assessment result indicating that the clarity of the driver's side corner window on the projection plane is acceptable. This achieves an accurate assessment of the visual clarity of the driver's side corner window, thus providing a reference for automakers when designing corner windows and improving the user experience. Therefore, this application achieves an accurate assessment of the visual clarity of the driver's side corner window and improves the user experience.

[0086] In one possible implementation, the above... Figure 1 The method for assessing the visibility of the driver's side corner window in a car also includes:

[0087] For the first projection plane and the second projection plane: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection plane is less than a preset threshold, and the projections of each visible boundary in the projection plane are not uniformly located on the side of the guide groove in the projection plane pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window being unqualified in the projection plane.

[0088] It should be noted that in practical applications, there are multiple standards for determining whether the sharpness of the driver's side corner window on the projection plane is acceptable. Here, one standard is provided as an example:

[0089] like Figures 5 to 9 The diagram shows the positional relationship between the visible boundary projection and the guide channel projection from different starting points on the same projection plane. The white triangle represents the projection originating from the center of the right-eye ellipse, the black triangle represents the projection originating from the center of the left-eye ellipse, the straight line represents the guide channel projection, and the area to the right of the straight line points towards the vehicle's front. A detailed analysis follows:

[0090] like Figure 5 As shown, the overlap of the white and black triangles enhances visual clarity. The white triangle is close to the guide channel projection, and both the white and black triangles are located on the side of the guide channel projection pointing towards the front of the vehicle, ensuring that the guide channel does not obstruct the view during observation. Furthermore, the proximity of the white triangle to the guide channel projection ensures continuity of the view when switching between the driver's side door glass and the driver's side door corner window, improving the user experience. Based on this... Figure 5 As shown in the positional relationship, the output visual clarity assessment result indicates that the clarity of the driver's side corner window on this projection plane is acceptable.

[0091] like Figure 6 As shown, the overlap of the white and black triangles enhances the clarity of the field of view. Both the white and black triangles are located on the side of the guide channel projection pointing towards the front of the vehicle, ensuring that the guide channel does not obstruct the field of view during observation, thus improving the user experience. Based on this... Figure 6 As shown in the positional relationship, the output visual clarity assessment result indicates that the clarity of the driver's side corner window on this projection plane is acceptable.

[0092] like Figure 7 As shown, the white and black triangles do not overlap, resulting in slightly poorer visual clarity. However, since both the white and black triangles are located on the side of the guide channel projection pointing towards the front of the vehicle, the guide channel will not create blind spots in the field of view during observation. Therefore, based on the following... Figure 7 As shown in the positional relationship, the output visual clarity assessment result indicates that the clarity of the driver's side corner window on this projection plane is acceptable.

[0093] In one possible implementation, the above is based on, for example... Figure 7 The positional relationship shown indicates that the output visual acuity assessment result may also indicate that the driver's side corner window's acuity on the projection plane is unsatisfactory. This can be configured according to the specific application scenario.

[0094] like Figure 8 As shown, the white and black triangles do not overlap, resulting in poor focus and slightly reduced field of view clarity. Furthermore, the white triangle coincides with the straight line, causing the guide groove to create a blind spot obstructing the field of view during observation. Based on this... Figure 8 As shown in the positional relationship, the output visual clarity assessment result indicates that the clarity of the driver's side corner window on this projection plane is unqualified.

[0095] like Figure 9 As shown, the white and black triangles do not overlap, resulting in poor focus and slightly reduced field of view clarity. The white triangle is not positioned on the side of the guide channel projection pointing towards the vehicle's front, making it impossible to observe the blind spot created by the guide channel. Based on... Figure 9 As shown in the positional relationship, the output visual clarity assessment result indicates that the clarity of the driver's side corner window on this projection plane is unqualified.

[0096] In one possible implementation, for ease of evaluation, it can be based on the above. Figures 5 to 9 The positional relationships within the text determine different evaluation levels, for example: Figure 5 Corresponding to Grade A, Figure 6 Corresponding to Grade B, Figure 7 Corresponding to Level C, Figure 8 Corresponding to Level D, Figure 9 Corresponding to Level E.

[0097] In one possible implementation, the method for evaluating the visual clarity of the driver's side corner window further includes, before obtaining the projections of the guide groove on the first and second projection planes, the guide groove projections on the first and second projection planes:

[0098] With the center line of the driver's neck as the axis, rotate the left and right eye ellipsoids synchronously so that the visual field pointing ray passes through the center point of the driver's side corner window. The starting point of the visual field pointing ray is the center point of the line connecting the center of the left eye ellipsoid and the center of the right eye ellipsoid. The visual field pointing ray is parallel to the direction line of the major axis of the left eye ellipse and / or the right eye ellipse.

[0099] It should be noted that in practical applications, due to differences in visual angles and lighting between the two eyes when the human eye is strabismic, there is a risk of shift in the visual areas of the left and right eyes. Therefore, this application avoids the aforementioned risk and improves the accuracy of the final visual acuity assessment result by configuring the left and right eye ellipsoids to rotate synchronously around the center line of the driver's neck as an axis before obtaining the guide channel projection, so that the visual field pointing ray passes through the center point of the driver's side corner window.

[0100] It should be noted that, in practical applications, the process described above, which involves simultaneously rotating the left and right eye ellipsoids around the center line of the driver's neck as an axis so that the ray pointing towards the field of vision passes through the center point of the driver's side window, can be as follows:

[0101] like Figure 10 The image shows a schematic diagram of the center line of the driver's neck. The center line of the neck is represented by r1.

[0102] like Figure 11 and Figure 12 The diagram illustrates the process by which the ray of vision passes through the center point of the driver's side corner window. As shown... Figure 11 As shown, the two ellipses represent the initial positions of the left and right eye ellipses. The starting point of the visual field pointing line L2 is the center point D1 of the line connecting the centers of the left and right eye ellipses. The visual field pointing ray L2 is parallel to the major axis direction line L3 of the left and / or right eye ellipses. The two ellipses rotate synchronously about the neck centerline r1.

[0103] like Figure 12 As shown, the two ellipses representing the left and right eye ellipses are rotated synchronously about the neck centerline r1 until they are as shown. Figure 12 At the position shown, the direction of the major axis line L3 of the left eye ellipse and / or right eye ellipse is as follows: Figure 12 As shown. Stop rotating when the field of view pointing ray L2 passes through the center point D2 of the driver's side corner window (triangle). At this point, the field of view pointing ray L2 passes through the centerline point D1 and the center point D2.

[0104] In one possible implementation, obtaining the guide groove projections of the driver's side corner window onto the first and second projection planes includes:

[0105] Starting from the center of the target eye ellipsoid, a first ray and a second ray are generated respectively. The first ray passes through the first end point of the guide groove, and the second ray passes through the second end point of the guide groove.

[0106] A diverging surface is constructed based on the first ray, the second ray, and the outer edge of the guide groove. The projection of the diverging surface onto the first projection plane is determined as the guide groove projection onto the first projection plane, and the projection of the diverging surface onto the second projection plane is determined as the guide groove projection onto the second projection plane.

[0107] It should be noted that, in practical applications, there are multiple implementation methods for obtaining the guide groove projection of the driver's side corner window onto the first and second projection planes. One such implementation is provided here as an example:

[0108] like Figure 13 The diagram illustrates the process of obtaining the guide groove projection. Starting from the center D3 of the target eye ellipsoid, a first ray and a second ray are generated. The first ray passes through the first endpoint D4 of the guide groove L4, and the second ray passes through the second endpoint D5 of the guide groove L4. A divergence surface is constructed based on the first endpoint D4, the second endpoint D5, the first ray, and the second ray. The intersection line L5 between this divergence surface and the first projection plane S1 is the guide groove projection. The divergence surface can be the divergence plane containing D4, D5, D6, and D7.

[0109] It should be noted that since the guide channel in the actual scenario is a three-dimensional shape, in actual application, the above-mentioned guide channel projection can be the outermost edge of the guide channel closest to the rear of the vehicle.

[0110] In one possible implementation, the visible boundary of the driver's side corner window is projected onto a first projection plane and a second projection plane, respectively, starting from the center of the left-eye ellipsoid and the center of the right-eye ellipsoid, including:

[0111] Starting from the target eye ellipsoid, multiple rays are generated, each passing through one end of the corner window, and the endpoints passed by each ray are different;

[0112] An initial divergence surface is constructed based on two rays passing through the two endpoints of the target edge and the target edge itself, where the target edge is an edge line of the driver's side corner window.

[0113] Under the condition that each divergence surface meets the preset conditions, the intersection curves between each initial divergence surface and the driver's side corner window are obtained respectively;

[0114] Multiple diverging surfaces are constructed based on each ray and each intersecting curve. The closed surface formed by the curves intersecting each diverging surface with the first projection plane is determined as the projection of the visible boundary of the driver's side corner window onto the first projection plane. The closed surface formed by the curves intersecting each diverging surface with the second projection plane is determined as the projection of the visible boundary of the driver's side corner window onto the second projection plane.

[0115] It should be noted that, in practical applications, there are various implementation methods for projecting the visible boundary of the driver's side window onto the first projection plane and the second projection plane, respectively, starting from the center of the left-eye ellipsoid and the center of the right-eye ellipsoid. Here, one example is provided:

[0116] like Figure 14 The diagram shows a schematic of a driver's side corner window, which includes three edge lines with endpoints D8, D9, and D10. Multiple rays are generated starting from the target eye ellipsoid, each passing through one endpoint of the corner window, and the endpoints traversed by each ray are different. An initial divergence surface is constructed based on the two rays passing through the two endpoints of the target edge and the target edge itself.

[0117] Because the car door is three-dimensional, when observing through the driver's side corner window, the outer components of the door obstruct the initial diverging surface, thus obstructing the projection of the driver's side corner window onto the projection plane, affecting the processing accuracy of subsequent steps. Therefore, this application avoids the obstruction of the driver's side corner window projection by configuring the aforementioned preset conditions. When obstruction occurs, it can be resolved by adjusting the edge lines. Figure 15 As shown in Figure 14 Based on this, a schematic diagram of the driver's side corner window after edge line adjustment is provided. Within the closed shape formed by endpoints D8, D9, and D10, there exists a closed shape obtained after adjusting the edge line. Figure 15 The adjusted edge line is the intersection curve between the initial divergence surface and the driver's side corner window.

[0118] Subsequently, multiple diverging surfaces are constructed based on each ray and each intersecting curve. The closed surface formed by the curves intersecting each diverging surface with the first projection plane is determined as the projection of the visible boundary of the driver's side corner window onto the first projection plane. The closed surface formed by the curves intersecting each diverging surface with the second projection plane is determined as the projection of the visible boundary of the driver's side corner window onto the second projection plane. At this time, the first projection plane S1 contains a guide groove projection L, a projection T1 of the visible boundary of the driver's side corner window originating from the center of the left eye ellipsoid, and a projection T2 of the visible boundary of the driver's side corner window originating from the center of the right eye ellipsoid. The second projection plane S2 contains a guide groove projection L, a projection T3 of the visible boundary of the driver's side corner window originating from the center of the left eye ellipsoid, and a projection T4 of the visible boundary of the driver's side corner window originating from the center of the right eye ellipsoid. Figure 16 As shown.

[0119] In one possible implementation, the above-mentioned preconditions include:

[0120] The diverging surface does not intersect with the interfering surface. The interfering surface is any one of the following: the door panel trim, the corner window sealing strip, the corner window black edge, the corner window guide groove, and the door panel outer water cut.

[0121] It should be noted that in practical application scenarios, in addition to the types mentioned above, the aforementioned interference surfaces may also include additional equipment located outside the driver's side door, such as snorkels and rearview mirrors.

[0122] It should be noted that in practical application scenarios, the above-mentioned... Figure 1 The method for evaluating the visibility of the driver's side corner window of a car, as shown, allows the shape of the driver's side corner window to be customized according to the actual application scenario. This application does not impose excessive limitations on this aspect.

[0123] The second aspect of this application provides a system for evaluating the visibility of the driver's side window of a car, such as... Figure 17 As shown, the system for assessing the visibility of the driver's side window of a car includes:

[0124] The first projection module 171 is used to obtain the projection of the guide groove of the driver's side corner window on the first projection plane and the second projection plane. The first projection plane and the second projection plane are both perpendicular to the plane where the lowest point of each tire of the vehicle is located. The first projection plane and the second projection plane are both in front of the foremost point of the vehicle. The distance between the first projection plane and the foremost point of the vehicle is less than the distance between the second projection plane and the foremost point of the vehicle. The first projection plane and the second projection plane are both perpendicular to the vehicle centerline in the plane where the lowest point of each tire of the vehicle is located. The vehicle centerline is the projection of the line connecting the foremost point of the vehicle and the rearmost point of the vehicle on the plane where the lowest point of each tire of the vehicle is located. The starting point of the guide groove projection is the center of the target eye ellipsoid closest to the driver's side door of the driver model. The target eye ellipsoid is either the left eye ellipsoid or the right eye ellipsoid.

[0125] The second projection module 172 is used to project the visible boundary of the driver's side corner window onto the first projection plane and the second projection plane, respectively, starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid.

[0126] The evaluation module 173 is used to evaluate the visual clarity of the driver's side corner window on the projection surface when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points on the first projection surface and the second projection surface is not less than a preset threshold, and the projections of each visible boundary on the projection surface are all located on the side of the guide groove pointing towards the front of the vehicle.

[0127] In one possible implementation, the evaluation module 173 is further configured as follows:

[0128] For the first projection plane and the second projection plane: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection plane is less than a preset threshold, and the projections of each visible boundary in the projection plane are not uniformly located on the side of the guide groove in the projection plane pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window being unqualified in the projection plane.

[0129] In one possible implementation, the above is as follows: Figure 17 The system shown for assessing the visibility of the driver's side window of a car also includes a preprocessing module.

[0130] The preprocessing module is used to synchronously rotate the left and right eye ellipsoids with the center line of the driver's neck as the axis before the guide groove of the driver's side corner window is projected onto the first and second projection planes. This is done so that the visual field pointing ray passes through the center point of the driver's side corner window. The starting point of the visual field pointing ray is the center point of the line connecting the center of the left and right eye ellipsoids. The visual field pointing ray is parallel to the major axis direction line of the left and / or right eye ellipsoids.

[0131] In one possible implementation, the first projection module 171 described above is configured as follows:

[0132] Starting from the center of the target eye ellipsoid, a first ray and a second ray are generated respectively. The first ray passes through the first end point of the guide groove, and the second ray passes through the second end point of the guide groove.

[0133] A diverging surface is constructed based on the first ray, the second ray, and the outer edge of the guide groove. The projection of the diverging surface onto the first projection plane is determined as the guide groove projection onto the first projection plane, and the projection of the diverging surface onto the second projection plane is determined as the guide groove projection onto the second projection plane.

[0134] In one possible implementation, the second projection module 172 described above is configured as follows:

[0135] Starting from the target eye ellipsoid, multiple rays are generated, each passing through one end of the corner window, and the endpoints passed by each ray are different;

[0136] An initial divergence surface is constructed based on two rays passing through the two endpoints of the target edge and the target edge itself, where the target edge is an edge line of the driver's side corner window.

[0137] Under the condition that each divergence surface meets the preset conditions, the intersection curves between each initial divergence surface and the driver's side corner window are obtained respectively;

[0138] Multiple diverging surfaces are constructed based on each ray and each intersecting curve. The closed surface formed by the curves intersecting each diverging surface with the first projection plane is determined as the projection of the visible boundary of the driver's side corner window onto the first projection plane. The closed surface formed by the curves intersecting each diverging surface with the second projection plane is determined as the projection of the visible boundary of the driver's side corner window onto the second projection plane.

[0139] In one possible implementation, the preset conditions in the second projection module 172 described above are set as follows:

[0140] The diverging surface does not intersect with the interfering surface. The interfering surface is any one of the following: the door panel trim, the corner window sealing strip, the corner window black edge, the corner window guide groove, and the door panel outer water cut.

[0141] A third aspect of this application provides an electronic device, including at least one processor and a memory connected to the processor, wherein:

[0142] Memory is used to store computer programs;

[0143] The processor is used to execute computer programs to enable electronic devices to implement the method for evaluating the visual clarity of the driver's side window of a car, as described in the first aspect or any implementation thereof.

[0144] In one possible implementation, the structural diagram of the above-mentioned electronic device is as follows: Figure 18 As shown. The electronic devices in the embodiments of this application may include, but are not limited to, fixed terminals such as mobile phones, laptops, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 18 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0145] like Figure 18As shown, the electronic device may include a processing unit (e.g., a central processing unit, a graphics processing unit, etc.) 1801, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1802 or a program loaded from a storage device 1808 into a random access memory (RAM) 1803. When the electronic device is powered on, the RAM 1803 also stores various programs and data required for the operation of the electronic device. The processing unit 1801, ROM 1802, and RAM 1803 are interconnected via a bus 1804. An input / output (I / O) interface 1805 is also connected to the bus 1804.

[0146] Typically, the following devices can be connected to the I / O interface 1805: input devices 1806 including, for example, a touchscreen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; output devices 1807 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1808 including, for example, memory card, hard disk, etc.; and communication devices 1809. The communication device 1809 allows the electronic device to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 18 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown. More or fewer devices may be implemented or have alternatively.

[0147] The fifth aspect of this application provides a computer storage medium carrying one or more computer programs, which, when executed by an electronic device, enable the electronic device to perform the method for evaluating the visual clarity of the driver's side window of a car as described in the first aspect or any implementation thereof.

[0148] It should also be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. In addition, in the device embodiment drawings provided in this application, the connection relationship between modules indicates that they have a communication connection, which can be implemented as one or more communication buses or signal lines.

[0149] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often the preferred implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0150] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product.

[0151] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A method for evaluating the visual clarity of the driver's side window of a car, characterized in that, include: The guide groove of the driver's side corner window is projected onto the first and second projection planes. The first and second projection planes are both perpendicular to the plane where the lowest points of each tire of the vehicle are located. The first and second projection planes are both in front of the foremost point of the vehicle. The distance between the first projection plane and the foremost point of the vehicle is less than the distance between the second projection plane and the foremost point of the vehicle. The first and second projection planes are both perpendicular to the vehicle centerline in the plane where the lowest points of each tire of the vehicle are located. The vehicle centerline is the projection of the line connecting the foremost point and the rearmost point of the vehicle onto the plane where the lowest points of each tire of the vehicle are located. The starting point of the guide groove projection is the center of the target eye ellipsoid closest to the driver's side door of the driver model. The target eye ellipsoid is either the left eye ellipsoid or the right eye ellipsoid. Starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid, the visible boundary of the driver's side corner window is projected onto the first projection plane and the second projection plane, respectively. For the first projection surface and the second projection surface: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection surface is not less than a preset threshold, and when the projections of each of the visible boundaries in the projection surface are all located on the side of the guide groove pointing towards the front of the vehicle in the projection surface, the output content is the visual clarity evaluation result of the driver's side corner window in the projection surface, indicating that the clarity is qualified.

2. The method for evaluating the visual clarity of the driver's side window of a car according to claim 1, characterized in that, The method further includes: For the first projection surface and the second projection surface: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection surface is less than the preset threshold, and the projections of each of the visible boundaries in the projection surface are not uniformly located on the side of the guide groove projection pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window being unqualified in the projection surface.

3. The method for evaluating the visual clarity of the driver's side window of a car according to claim 1, characterized in that, Before obtaining the guide groove projection of the driver's side corner window onto the first and second projection planes, the method further includes: With the center line of the driver's neck as the axis, the left eye ellipsoid and the right eye ellipsoid are rotated synchronously so that the field of vision pointing ray passes through the center point of the driver's side corner window. The starting point of the field of vision pointing ray is the center point of the line connecting the center of the left eye ellipsoid and the center of the right eye ellipsoid. The field of vision pointing ray is parallel to the major axis direction line of the left eye ellipse and / or the right eye ellipse.

4. The method for evaluating the visual clarity of the driver's side window of a car according to claim 1, characterized in that, The process of obtaining the guide groove projection of the driver's side corner window onto the first and second projection planes includes: Starting from the center of the target eye ellipsoid, a first ray and a second ray are generated respectively. The first ray passes through the first end point of the guide groove, and the second ray passes through the second end point of the guide groove. A diverging surface is constructed based on the first ray, the second ray, and the outer edge of the guide groove. The projection of the diverging surface onto the first projection surface is determined as the guide groove projection onto the first projection surface, and the projection of the diverging surface onto the second projection surface is determined as the guide groove projection onto the second projection surface.

5. The method for evaluating the visual clarity of the driver's side window of a car according to claim 1, characterized in that, The step of projecting the visible boundary of the driver's side corner window onto the first projection plane and the second projection plane, respectively, starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid, includes: Starting from the target eye ellipsoid, multiple rays are generated, each ray passing through one end of the corner window, and the end points passed by each ray are different; An initial divergence surface is constructed based on two rays passing through the two endpoints of the target edge and the target edge, which is an edge line of the driver's side corner window; When all the diverging surfaces meet the preset conditions, the intersection curves of each initial diverging surface and the driver's side corner window are obtained respectively; Multiple diverging surfaces are constructed based on each of the rays and each of the intersecting curves. The closed surface formed by the curves intersecting each of the diverging surfaces and the first projection surface is determined as the projection of the visible boundary of the driver's side corner window onto the first projection surface. The closed surface formed by the curves intersecting each of the diverging surfaces and the second projection surface is determined as the projection of the visible boundary of the driver's side corner window onto the second projection surface.

6. The method for evaluating the visual clarity of the driver's side window of a car according to claim 5, characterized in that, The preset conditions include: The diverging surface does not intersect with the interfering surface, which is any one of the following: the door panel trim, the corner window sealing strip, the corner window black edge, the corner window guide groove, and the door panel outer water cut.

7. A system for evaluating the visual clarity of the driver's side window of a car, characterized in that, include: The first projection module is used to obtain the projection of the guide groove of the driver's side corner window onto the first projection plane and the second projection plane. The first projection plane and the second projection plane are both perpendicular to the plane where the lowest point of each tire of the vehicle is located. The first projection plane and the second projection plane are both in front of the foremost point of the vehicle. The distance between the first projection plane and the foremost point of the vehicle is less than the distance between the second projection plane and the foremost point of the vehicle. The first projection plane and the second projection plane are both perpendicular to the vehicle centerline in the plane where the lowest point of each tire of the vehicle is located. The vehicle centerline is the projection of the line connecting the foremost point of the vehicle and the rearmost point of the vehicle onto the plane where the lowest point of each tire of the vehicle is located. The starting point of the guide groove projection is the center of the target eye ellipsoid closest to the driver's side door of the driver model. The target eye ellipsoid is either the left eye ellipsoid or the right eye ellipsoid. The second projection module is used to project the visible boundary of the driver's side corner window onto the first projection plane and the second projection plane, respectively, starting from the center of the left eye ellipsoid and the center of the right eye ellipsoid. The evaluation module is used to evaluate the visual clarity of the driver's side corner window on the projection surface when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points on the first projection surface and the second projection surface is not less than a preset threshold, and the projections of each visible boundary on the projection surface are all located on the side where the guide groove projection points towards the front of the vehicle.

8. The system for evaluating the visual clarity of the driver's side window of a car according to claim 7, characterized in that, The evaluation module is also configured to: For the first projection surface and the second projection surface: when the overlapping area of ​​the projections of the visible boundaries corresponding to different starting points in the projection surface is less than the preset threshold, and the projections of each of the visible boundaries in the projection surface are not uniformly located on the side of the guide groove projection pointing towards the front of the vehicle, the output content is the visual clarity evaluation result of the driver's side corner window being unqualified in the projection surface.

9. An electronic device, characterized in that, It includes at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program to enable the electronic device to implement the method for evaluating the visibility of the driver's side window of a vehicle as described in any one of claims 1 to 6.

10. A computer storage medium, characterized in that, The storage medium carries one or more computer programs that, when executed by an electronic device, enable the electronic device to implement the method for evaluating the visual clarity of the driver's side window of a car as described in any one of claims 1 to 6.

Citation Information

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