CN114820608A - Imaging effect detection method and device, vehicle and storage medium - Google Patents
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Abstract
The embodiment of the invention discloses an imaging effect detection method, an imaging effect detection device, a vehicle and a storage medium, wherein the method comprises the following steps: analyzing the test case to obtain test data, and sending the test data to the head-up display equipment so that the head-up display equipment generates image frame data buffered in a frame buffer according to the test data; generating a standard image according to the test data; acquiring image frame data in frame buffering from the head-up display device, and generating a test image based on the image frame data; and comparing the standard image with the test image to obtain an imaging effect detection result. The embodiment of the invention can generate the test image and the standard image according to the test data, detect the imaging effect of the head-up display equipment based on the test image and the standard image, automatically detect the imaging effect of the head-up display equipment, improve the accuracy and efficiency of the imaging effect detection, shorten the imaging effect detection time, and save the time cost and the labor cost of the imaging effect detection.
Description
Technical Field
The embodiment of the invention relates to a head-up display detection technology, in particular to an imaging effect detection method and device, a vehicle and a storage medium.
Background
The head-up display can be fused with the driving real scene to display road condition information, but an actual output image and an expected output image of the head-up display when displaying the road condition information may be different, which affects driving safety, so that the difference between the actual output image and the expected output image of the head-up display needs to be detected.
Currently, the difference between the actual output image and the expected output image of the heads-up display is mainly detected by the human eye of a detection person.
The detection time is long, the eyes of people are in visual fatigue, detection personnel can not find out that the display image of the head-up display is abnormal in time, so that the actual output image of the head-up display is not in accordance with the standard of the expected output image, in the actual vehicle running process, the driving safety of a driver is affected due to the fact that the display image of the head-up display is not in accordance with the standard of the expected output image, poor driving experience is brought to the driver, and the detection efficiency of manually detecting the difference of the display images is low.
Disclosure of Invention
The embodiment of the invention provides an imaging effect detection method, an imaging effect detection device, a vehicle and a storage medium, which can improve the accuracy and efficiency of imaging effect detection, shorten the imaging effect detection time, save the imaging effect detection time cost and the labor cost, avoid the condition that the driving safety of a driver is affected because a detector cannot find the abnormity appearing in the display image of a head-up display device in time, and better guarantee the driving safety of the driver, thereby bringing better driving experience to the driver.
In a first aspect, an embodiment of the present invention provides an imaging effect detection method, where the method includes:
analyzing the test case to obtain test data, and sending the test data to head-up display equipment so that the head-up display equipment generates image frame data cached in a frame buffer according to the test data;
generating a standard image according to the test data;
acquiring the image frame data in the frame buffer from the head-up display device, and generating a test image based on the image frame data;
and comparing the standard image with the test image to obtain an imaging effect detection result.
In a second aspect, an embodiment of the present invention provides an imaging effect detection apparatus, including:
the image frame data generating module is used for analyzing the test case to obtain test data and sending the test data to the head-up display equipment so that the head-up display equipment generates image frame data cached in a frame buffer according to the test data;
the standard image generation module is used for generating a standard image according to the test data;
a test image generation module for acquiring the image frame data in the frame buffer from the head-up display device and generating a test image based on the image frame data;
and the imaging effect detection result determining module is used for comparing the standard image with the test image to obtain an imaging effect detection result.
In a third aspect, embodiments of the present invention further provide a vehicle, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the imaging effect detection method according to any one of the embodiments of the present invention.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the imaging effect detection method according to any one of the embodiments of the present invention.
In the embodiment of the invention, the test case can be analyzed to obtain the test data, and the test data is sent to the head-up display equipment, so that the head-up display equipment generates the image frame data buffered in the frame buffer according to the test data; generating a standard image according to the test data; acquiring image frame data in frame buffering from the head-up display device, and generating a test image based on the image frame data; and comparing the standard image with the test image to obtain an imaging effect detection result. The embodiment of the invention can generate the test image and the standard image according to the test data, detect the imaging effect of the head-up display device based on the test image and the standard image, automatically detect the imaging effect of the head-up display device, solve the problem of low detection efficiency of manually detecting the imaging effect of the head-up display device, improve the accuracy and efficiency of the imaging effect detection, shorten the imaging effect detection time, save the time cost and the labor cost of the imaging effect detection, avoid the condition that the driving safety of a driver is affected because a detector cannot timely find the abnormity of the display image of the head-up display device, and better guarantee the driving safety of the driver, thereby bringing better driving experience to the driver.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic flow chart of an imaging effect detection method provided by an embodiment of the invention;
FIG. 2 is a schematic illustration of a vehicle provided by an embodiment of the present invention;
fig. 3 is another schematic flow chart of the imaging effect detection method provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of an imaging effect detection apparatus provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic flowchart of an imaging effect detection method provided in an embodiment of the present invention, which may be executed by an imaging effect detection apparatus provided in an embodiment of the present invention, and the apparatus may be implemented in software and/or hardware. In a specific embodiment, the apparatus may be integrated in a vehicle, fig. 2 is a schematic diagram of the vehicle according to the embodiment of the present invention, as shown in fig. 2, the vehicle may include an upper computer 21, a head-up display device 22, and a Controller Area Network Bus box 23, and the upper computer 21 may send a USB signal instruction to the Controller Area Network Bus (CAN) box 23 through a Universal Serial Bus (USB); the controller area network bus box 23 may convert the USB signal instruction into a CAN signal instruction, and forward the CAN signal instruction to the heads-up display device 22 through the controller area network bus, and accordingly, the heads-up display device 22 may transmit the CAN signal instruction to the controller area network bus box 23; the controller area network bus box 23 CAN convert the CAN signal instruction into a USB signal instruction, and send the USB signal instruction to the upper computer 21 through a universal serial bus. The following embodiments will be described by taking as an example that the apparatus is integrated in a vehicle, and specifically, may be integrated in an upper computer 21 of the vehicle, and referring to fig. 1, the method may specifically include the following steps:
The test case can be understood as a set of test input, execution conditions and expected results compiled by detecting the imaging effect of the head-up display device, and is used for determining whether the display image of the head-up display device meets the imaging effect standard; the test data can be understood as vehicle data obtained by analyzing the test case, and can include driving data in the driving process of the vehicle, display rules of images corresponding to the driving data, sending cycle data of messages where driving data display signals are located, and the like; the image frame data can be understood as each frame of image data generated by the head-up display device according to the test data, and the image frame data can comprise image size data and pixel value data of each frame of image; frame buffering may be understood as a buffer area storing image frame data.
Specifically, the test case can be analyzed by an upper computer in the vehicle to obtain test data, and the upper computer can send the analyzed test data to the head-up display device through a controller area network bus; the head-up display device may generate image frame data buffered in a frame buffer according to the test data after receiving the test data.
Exemplarily, it is assumed that the test data obtained by analyzing the test case by the upper computer includes:
1) the vehicle speed is transmitted at a cycle of 50 milliseconds, and the vehicle speed value is set to 20 km/h and is transmitted for 1 s.
2) Transmitting the vehicle speed at a 50 millisecond period, and setting the vehicle speed value to be 60 kilometers/hour, and continuously transmitting; the navigation is started to be transmitted at a period of 100ms, and the navigation information is set to turn left and is continuously transmitted for 2 s.
3) And stopping sending navigation, and stopping sending the vehicle speed after 1 s.
The upper computer can send the analyzed test data to the head-up display equipment through a controller area network bus; taking "the vehicle speed is transmitted at a cycle of 50 milliseconds, and the vehicle speed value is set to 20 km/h and continuously transmitted for 1 s" in the test data as an example, the head-up display device may generate a display image of the vehicle speed signal corresponding to 20 km/h according to the test data after receiving the test data, and buffer image frame data of the generated display image of the vehicle speed signal corresponding to 20 km/h in the frame buffer.
And 102, generating a standard image according to the test data.
The standard image can be understood as an image generated by the upper computer according to the test data.
Specifically, the upper computer may generate a standard image according to test data obtained by analyzing the test case.
For example, in the analyzed test data, "the vehicle speed is transmitted at a cycle of 50 milliseconds, the vehicle speed value is set to 20 km/h, and the transmission is continued for 1 s", for example, the upper computer may generate a display image of the vehicle speed signal corresponding to 20 km/h according to the test data, and store the generated image frame data of the display image of the vehicle speed signal corresponding to 20 km/h in the memory.
The test image may be an image generated by the upper computer according to the acquired image frame data in the frame buffer.
Specifically, the upper computer may obtain image frame data in the frame buffer from the heads-up display device through the controller area network bus, and generate a test image based on the image frame data.
For example, the upper computer may acquire image frame data of a display image corresponding to 20 km/h in a frame buffer from the heads-up display device through the controller area network bus, and generate a test image based on the image frame data of the display image corresponding to 20 km/h.
And 104, comparing the standard image with the test image to obtain an imaging effect detection result.
Specifically, whether the display contents of the standard image and the test image are matched or not can be compared through the upper computer, and an imaging effect detection result is obtained.
For example, whether the display contents of the standard image and the test image are both display images of the vehicle speed signal corresponding to 20 km/h can be compared through the upper computer, and if the display contents of the standard image and the test image are both display images of the vehicle speed signal corresponding to 20 km/h, the display contents of the standard image and the test image can be determined to be matched, and the imaging effect detection result can be determined to be qualified; if the display contents of the standard image and the test image are not both the display images of the vehicle speed signal corresponding to 20 km/h, the display contents of the standard image and the test image can be determined to be not matched, and the imaging effect detection result can be determined to be unqualified.
In the embodiment of the invention, the test case can be analyzed to obtain the test data, and the test data is sent to the head-up display equipment, so that the head-up display equipment generates the image frame data buffered in the frame buffer according to the test data; generating a standard image according to the test data; acquiring image frame data in frame buffering from the head-up display device, and generating a test image based on the image frame data; and comparing the standard image with the test image to obtain an imaging effect detection result. The embodiment of the invention can generate the test image and the standard image according to the test data, detect the imaging effect of the head-up display device based on the test image and the standard image, automatically detect the imaging effect of the head-up display device, solve the problem of low detection efficiency of manually detecting the imaging effect of the head-up display device, improve the accuracy and efficiency of the imaging effect detection, shorten the imaging effect detection time, save the time cost and the labor cost of the imaging effect detection, avoid the condition that the driving safety of a driver is affected because a detector cannot timely find the abnormity of the display image of the head-up display device, and better guarantee the driving safety of the driver, thereby bringing better driving experience to the driver.
The method for detecting an imaging effect according to the embodiment of the present invention is further described below, as shown in fig. 3, fig. 3 is another schematic flow chart of the method for detecting an imaging effect according to the embodiment of the present invention, and specifically includes the following steps:
Specifically, the upper computer can send the test data to the controller area network bus box through a universal serial bus; the controller area network bus box CAN convert the received test data sending instruction of the USB signal into a test data sending instruction of a CAN signal and send the test data sending instruction of the CAN signal to the head-up display equipment; the heads-up display device may generate image frame data buffered in a frame buffer from the received test data.
The icon cut graph can be understood as a plane cut graph of a three-dimensional model display icon corresponding to the test data; the display logic may be understood as a display rule of the icon cut in the test data.
Specifically, the upper computer can determine the corresponding icon cutout and display logic according to the data signals needing to be displayed in the test data.
For example, the test data includes a vehicle speed signal, a remote Control Unit (TCU) fault signal, and the vehicle speed signal is periodically sent for 2s and then sent for the TCU fault signal; according to the test data, after the vehicle speed icon corresponding to the vehicle speed signal is determined to be displayed, the fault icon corresponding to the TCU fault signal is displayed, the vehicle speed icon and the fault icon cannot be displayed in a display picture at the same time, the icon cutout corresponding to the test data can be determined to be the icon cutout of the vehicle speed signal and the icon cutout corresponding to the TCU fault signal, and the display logic corresponding to the test data is as follows: and after the head-up display equipment receives the vehicle speed signal, displaying an icon map cutting picture corresponding to the vehicle speed signal in a full screen mode, and after the head-up display equipment receives the TCU fault signal 2s later, displaying an alarm picture of the icon map cutting corresponding to the TCU fault signal in a full screen mode, wherein the icon map cutting corresponding to the vehicle speed signal cannot appear in the display picture.
Specifically, the period data of the message corresponding to the signal in the test data may be determined based on the test data, and the standard image may be generated based on the period data of the message corresponding to the signal by using the icon cutout and the display logic corresponding to the signal.
The standard image format may be a Bitmap (BMP) format, and the BMP is a standard image file format in the operating system, and can be supported by various operating system applications. The image data in BMP format may include a bitmap header file data structure, a bitmap information data structure, bitmap data. The bitmap header file data structure may include information such as the type and display content of the image file in BMP format; the bitmap information data structure may include the width, height, compression method of the image in BMP format; the bitmap data may include pixel values of pixel points of the image in the BMP format.
Further, the bitmap header file data of the standard image in the BMP format can be deleted to obtain a bitmap information data structure and bitmap data; when generating the marker image, the marker image having the same width and height may be generated based on the bitmap information data structure; the information data structure and the bitmap data can be stored in corresponding memories, and when the standard image and the test image are compared, an imaging effect detection result can be obtained based on the bitmap data.
For example, taking an image corresponding to a TCU fault signal generated by the head-up display device according to "continuously sending a TCU fault signal for 2 s" in test data as an example, a standard image in a BMP format of the TCU fault signal may be generated for two seconds based on cycle data (2 s) of a packet corresponding to the TCU fault signal in the test data, and bitmap header file data corresponding to the standard image in the BMP format of the TCU fault signal may be deleted to obtain a bitmap information data structure and bitmap data of the standard image in the BMP format of the TCU fault signal, and a bitmap information data structure and bitmap data of the standard image in the BMP format of the TCU fault signal may be stored in a corresponding memory.
In the embodiment of the invention, the graph cutting and the display logic can be determined by determining the icon corresponding to the test data; the standard image is generated based on the test data by utilizing the icon cutting and the display logic, so that the standard image can be generated more accurately and rapidly, and the accuracy of imaging effect detection is improved.
And step 204, acquiring image frame data from the head-up display equipment through the controller area network bus, and generating a test image based on the image frame data.
Specifically, a data acquisition instruction can be sent to the head-up display device through the controller area network bus, so that the head-up display device feeds back data storage parameters according to the data acquisition instruction; the image frame data in the frame buffer can be acquired from the head-up display device through the controller domain network bus based on the data storage parameters, so that the communication between the head-up display device and the upper computer can be realized through the controller domain network bus, the communication efficiency between the head-up display device and the upper computer is improved, and the detection speed of the effect detection can be improved.
The data acquisition instruction can be understood as a data acquisition request sent by an upper computer; the data storage parameters may be understood as image storage parameters of the frame buffer and may include size parameters of the images in the frame buffer as well as capacity parameters of the frame buffer.
Further, after the image frame data in the frame buffer is obtained from the head-up display device through the controller domain network bus based on the data storage parameter, a test image in the BMP format may be generated based on the image frame data, a bitmap head file data structure of the test image in the BMP format may be deleted, a bitmap information data structure and bitmap data of the test image in the BMP format may be obtained, and the bitmap information data structure and bitmap data corresponding to the test image in the BMP format may be stored to a corresponding memory.
Optionally, since the image frame data generated by the head-up display device may include bitmap data, after receiving the image frame data, the upper computer may generate a test image based on the bitmap data in the image frame data and the data storage parameter, that is, the bitmap data of the test image is the same as the bitmap data in the image frame data, and when comparing the representation image and the test image, may compare whether the bitmap data of the test image is the same as the bitmap data of the standard image, and may also compare whether the bitmap data of the image frame data is the same as the bitmap data of the standard image, thereby determining whether the test image and the standard image are matched.
For example, taking a TCU fault signal image generated by the head-up display device according to "send TCU fault signal" in the test data as an example, the head-up display device may buffer image frame data of the generated TCU fault signal image into a frame buffer; the upper computer can send a data acquisition instruction of frame buffering of image frame data for caching the TCU fault signal image to the head-up display device through the controller area network bus, so that the head-up display device feeds back the capacity parameter of the frame buffering of the image frame data for caching the TCU fault signal image and the stored image size parameter according to the data acquisition instruction; then the upper computer can acquire image frame data of a TCU fault signal image in a frame buffer from the head-up display device through a controller domain network bus based on the capacity parameter and the stored image size parameter, further can generate a test image of the TCU fault signal in a BMP format based on the image frame data of the TCU fault signal image, can delete a bitmap head file data structure of the test image of the TCU fault signal in the BMP format, obtain a bitmap information data structure and bitmap data of the test image of the TCU fault signal in the BMP format, and can store the bitmap information data structure and bitmap data corresponding to the test image of the TCU fault signal in the BMP format to a corresponding memory.
Specifically, the bitmap data of the standard image can be acquired from a memory corresponding to the bitmap data of the standard image; acquiring bitmap data of the test image from a memory corresponding to the bitmap data of the test image; further, whether the test image is matched with the standard image or not can be determined by determining whether the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image or not; when the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image, the test image is determined to be matched with the standard image, and when the pixel values of the pixel points in the test image are not equal to the pixel values of the pixel points at the corresponding positions in the standard image, the test image is determined to be not matched with the standard image.
Further, the comparison times of the standard image and the test image can be determined based on the capacity parameter of the frame buffer in the data storage parameter, so that whether the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image or not can be sequentially determined based on the comparison times, and whether the test image is matched with the standard image or not can be determined.
For example, if it is determined that the comparison times of the standard image and the test image are 300000 times based on that the frame buffer capacity parameter in the data storage parameter is 500 × 200 × 3, the pixel values of the pixels in the test image and the pixel values of the pixels at the corresponding positions in the standard image may be compared 300000 times, and it is sequentially determined whether the pixel values of the pixels in the test image and the pixel values of the pixels at the corresponding positions in the standard image that are compared each time are equal to each other, thereby determining whether the test image and the standard image are matched. Wherein 500 × 200 may be understood as the width and height of the image, and 3 may be understood as each pixel of the image occupying 3 bytes, the red color occupying one byte, the blue color occupying one byte, and the green color occupying one byte.
In the embodiment of the invention, whether the test image is matched with the standard image can be determined by determining whether the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image, so that the problem that human eyes are difficult to find that the actual output image of the head-up display device deviates from the expected output image by a plurality of pixels to cause lower efficiency of detecting the difference points of the displayed images in the process that the actual output image of the head-up display device is projected to a front windshield through an optical system is solved, and further, the effect of the head-up display device can be more accurately detected, so that the accuracy of detecting the imaging effect is improved, the detection time of the imaging effect is shortened, and the time cost and the labor cost of detecting the imaging effect are saved.
The pixel value may be understood as a pixel value of three primary colors of a pixel point in an image, where the three primary colors are red, green, and blue, respectively, that is, the pixel value of the three primary colors may be a pixel value of three colors of red, green, and blue.
Further, whether the test image is matched with the standard image can be determined by determining whether the three-primary-color pixel values of the pixel points in the test image are equal to the three-primary-color pixel values of the pixel points at the corresponding positions in the standard image; when the three-primary-color pixel values of the pixel points in the test image are equal to the three-primary-color pixel values of the pixel points at the corresponding positions in the standard image, the test image is determined to be matched with the standard image, and when the three-primary-color pixel values of the pixel points in the test image are not equal to the three-primary-color pixel values of the pixel points at the corresponding positions in the standard image, the test image is determined to be not matched with the standard image.
And step 206, determining that the imaging effect detection result is unqualified.
For example, bitmap data of a standard image corresponding to a TCU fault signal in a BMP format may be acquired from a memory corresponding to bitmap data of the standard image; the bitmap data of the test image corresponding to the TCU fault signal in the BMP format can be obtained from the memory corresponding to the bitmap data of the test image, taking the standard image and the test image corresponding to the TCU fault signal as an example, if the three primary color pixel values of the pixel point a in the standard image corresponding to the TCU fault signal are respectively 110 (red), 125 (green), and 225 (blue) in sequence, and the three primary color pixel values of the pixel point a in the test image corresponding to the TCU fault signal are respectively 110 (red), 125 (green), and 235 (blue) in sequence, then the pixel value (225) corresponding to the blue color of the pixel point a in the standard image is not equal to the pixel value (235) corresponding to the blue color of the pixel point a in the test image, and it can be determined that the test image and the standard image are not matched.
Specifically, the upper computer can determine pixel points with pixel values unequal to corresponding pixel points of the standard image from the pixel points of the test image to obtain difference pixel points; and marking the difference pixel points in the test image by using the designated color to obtain a marked image.
The differential pixel points can be understood as pixel points with pixel values different from those of corresponding pixel points of the standard image in the pixel points of the test image; the marked image can be understood as an image obtained after marking the difference pixel points in the test image with a specified color.
Furthermore, the difference pixel points are marked with designated colors in the test image to obtain a marked image, the three-primary-color pixel values of the difference pixel points can be set as the three-primary-color pixel values of the designated colors in the test image through the upper computer, and the marked image can be generated based on the bitmap information data structure.
For example, the upper computer may determine, among the pixel points of the test image corresponding to the TCU fault signal, a pixel point a having a pixel value unequal to a pixel point corresponding to the standard image, to obtain a difference pixel point B, and then the three primary color pixel values of the difference pixel point B are respectively 110 (red), 125 (green), and 235 (blue) in sequence; the three-primary-color pixel values of the difference pixel points B can be set to the three-primary-color pixel values (255, 0) corresponding to red in the test image by the upper computer, and the label map can be generated based on the bitmap information data structure (500 × 200).
In the embodiment of the invention, the pixel points with the pixel values not equal to the corresponding pixel points of the standard image can be determined in the pixel points of the test image, so as to obtain the difference pixel points; the difference pixel points are marked with the designated colors in the test image to obtain a marked image, and the marked image can be generated more accurately according to the test image and the standard image.
And step 208, generating a detection report according to the marker image and the imaging effect detection result.
Specifically, the label map and the imaging effect detection result may be output to corresponding detection report entries, and a detection report corresponding to the test case is generated.
For example, a marker map corresponding to the TCU fault signal and an imaging effect detection result (fail) may be output to a corresponding detection report entry, and a detection report including a test case corresponding to the TCU fault signal display may be generated.
In the embodiment of the invention, when the imaging effect detection result is unqualified, the marking image can be generated according to the test image and the standard image, the detection report can be generated according to the marking image and the imaging effect detection result, and the effect detection personnel can more intuitively identify the difference between the standard image and the test image from the detection report, so that the head-up display equipment can be more quickly adjusted according to the marking image in the detection report, the actual output image of the head-up display equipment conforms to the standard of the expected output image, the driving safety of a driver can be better ensured, a better driving ring is provided for the driver, and better driving experience is brought to the driver.
And step 209, determining that the imaging effect detection result is qualified.
For example, taking the standard image and the test image corresponding to the TCU fault signal as an example, if the three primary color pixel values of the pixel point a in the standard image corresponding to the TCU fault signal are respectively 110 (red), 125 (green), and 225 (blue), and the three primary color pixel values of the pixel point a in the test image corresponding to the TCU fault signal are respectively 110 (red), 125 (green), and 225 (blue), the three primary color pixel value of the pixel point a in the standard image is equal to the three primary color pixel value of the pixel point a in the test image, and it can be determined that the test image is matched with the standard image.
In the embodiment of the invention, the test case can be analyzed to obtain test data, the test data is sent to the head-up display equipment through the controller domain network bus, so that the head-up display equipment generates image frame data buffered in a frame buffer according to the test data, icon cutout and display logic corresponding to the test data are determined, a standard image is generated based on the test data by utilizing the icon cutout and the display logic, image frame data is obtained from the head-up display equipment through the controller domain network bus, and a test image is generated based on the image frame data; comparing the standard image with the test image to determine whether the test image is matched with the standard image, if the test image is not matched with the standard image, determining that the imaging effect detection result is unqualified, generating a marking image according to the test image and the standard image, and generating a detection report according to the marking image and the imaging effect detection result; and if the test image is matched with the standard image, determining that the imaging effect detection result is qualified. The embodiment of the invention can generate the test image and the standard image according to the test data, detect the imaging effect of the head-up display device based on the test image and the standard image, automatically detect the imaging effect of the head-up display device, solve the problem of low detection efficiency of manually detecting the imaging effect of the head-up display device, improve the accuracy and efficiency of the imaging effect detection, shorten the imaging effect detection time, save the time cost and the labor cost of the imaging effect detection, avoid the condition that the driving safety of a driver is affected because a detector cannot timely find the abnormity of the display image of the head-up display device, and better guarantee the driving safety of the driver, thereby bringing better driving experience to the driver.
Fig. 4 is a schematic structural diagram of an imaging effect detection apparatus provided in an embodiment of the present invention, which is suitable for executing the imaging effect detection method provided in the embodiment of the present invention. As shown in fig. 4, the apparatus may specifically include:
the image frame data generating module 401 is configured to parse the test case to obtain test data, and send the test data to a head-up display device, so that the head-up display device generates image frame data cached in a frame buffer according to the test data;
a standard image generating module 402, configured to generate a standard image according to the test data;
a test image generation module 403, configured to obtain the image frame data in the frame buffer from the head-up display device, and generate a test image based on the image frame data;
and an imaging effect detection result determining module 404, configured to compare the standard image and the test image to obtain an imaging effect detection result.
Optionally, the imaging effect detection result determining module 404 is specifically configured to:
comparing the standard image and the test image to determine if the test image and the standard image match;
when the test image is matched with the standard image, determining that the imaging effect detection result is qualified;
and when the test image is not matched with the standard image, determining that the imaging effect detection result is unqualified.
Optionally, the imaging effect detection result determining module 404 compares the standard image and the test image to determine whether the test image and the standard image match, including:
determining whether the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image;
and when the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image, determining that the test image is matched with the standard image.
Optionally, the apparatus further comprises a detection report generating module, configured to:
when the imaging effect detection result is unqualified, generating a marking image according to the test image and the standard image;
and generating a detection report according to the marked image and the imaging effect detection result.
Optionally, the detection report generating module generates a marker image according to the test image and the standard image, and includes:
determining pixel points with pixel values unequal to corresponding pixel points of the standard image from the pixel points of the test image to obtain difference pixel points;
and marking the difference pixel points in the test image by using appointed colors to obtain the marked image.
Optionally, the standard image generating module 402 is specifically configured to:
determining an icon cutting graph and a display logic corresponding to the test data;
generating the standard image based on the test data using the icon cutout and the display logic.
Optionally, the image frame data generating module 401 sends the test data to the head-up display device, where the sending includes:
sending the test data to the head-up display equipment through a controller area network bus;
the test image generation module 403 acquires the image frame data in the frame buffer from the head-up display device, including:
and acquiring the image frame data from the head-up display equipment through the controller area network bus.
Optionally, the test image generation module 403 acquires the image frame data from the head-up display device through the controller area network bus, including:
sending a data acquisition instruction to the head-up display equipment through the controller area network bus so that the head-up display equipment feeds back data storage parameters according to the data acquisition instruction;
acquiring the image frame data in the frame buffer from the heads-up display device through the controller area network bus based on the data storage parameter.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the functional module, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
The device of the embodiment of the invention can analyze the test case to obtain the test data and send the test data to the head-up display equipment, so that the head-up display equipment generates the image frame data buffered in the frame buffer according to the test data; generating a standard image according to the test data; acquiring image frame data in frame buffer from the head-up display device, and generating a test image based on the image frame data; and comparing the standard image with the test image to obtain an imaging effect detection result. The embodiment of the invention can generate the test image and the standard image according to the test data, detect the imaging effect of the head-up display device based on the test image and the standard image, automatically detect the imaging effect of the head-up display device, solve the problem of low detection efficiency of manually detecting the imaging effect of the head-up display device, improve the accuracy and efficiency of the imaging effect detection, shorten the imaging effect detection time, save the time cost and the labor cost of the imaging effect detection, avoid the condition that the driving safety of a driver is affected because a detector cannot timely find the abnormity of the display image of the head-up display device, and better guarantee the driving safety of the driver, thereby bringing better driving experience to the driver.
The embodiment of the invention further provides a vehicle, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the imaging effect detection method provided by any one of the embodiments.
The embodiment of the invention also provides a computer readable medium, on which a computer program is stored, and the program is executed by a processor to implement the imaging effect detection method provided by any one of the above embodiments.
Referring now to FIG. 5, a block diagram of a computer system 500 of a vehicle suitable for use in implementing an embodiment of the present invention is shown. The vehicle shown in fig. 5 is only an example, and should not bring any limitation to the function and the range of use of the embodiment of the present invention.
As shown in fig. 5, the computer system 500 includes a Central Processing Unit (CPU)501 that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)502 or a program loaded from a storage section 508 into a Random Access Memory (RAM) 503. In the RAM 503, various programs and data necessary for the operation of the computer system 500 are also stored. The CPU 501, ROM 502, and RAM 503 are connected to each other via a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.
The following components are connected to the I/O interface 505: an input portion 506 including a keyboard, a mouse, and the like; an output portion 507 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage portion 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN card, a modem, or the like. The communication section 509 performs communication processing via a network such as the internet. The driver 510 is also connected to the I/O interface 505 as necessary. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 510 as necessary, so that a computer program read out therefrom is mounted into the storage section 508 as necessary.
In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 509, and/or installed from the removable medium 511. The computer program performs the above-described functions defined in the system of the present invention when executed by the Central Processing Unit (CPU) 501.
It should be noted that the computer readable medium shown in the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The modules and/or units described in the embodiments of the present invention may be implemented by software, and may also be implemented by hardware. The described modules and/or units may also be provided in a processor, and may be described as: a processor includes an image frame data generation module, a standard image generation module, a test image generation module, and an imaging effect detection result determination module. Wherein the names of the modules do not in some cases constitute a limitation of the module itself.
As another aspect, the present invention also provides a computer-readable medium that may be contained in the apparatus described in the above embodiments; or may be separate and not incorporated into the device. The computer readable medium carries one or more programs which, when executed by a device, cause the device to comprise:
analyzing the test case to obtain test data, and sending the test data to the head-up display equipment so that the head-up display equipment generates image frame data buffered in a frame buffer according to the test data; generating a standard image according to the test data; acquiring image frame data in frame buffering from the head-up display device, and generating a test image based on the image frame data; and comparing the standard image with the test image to obtain an imaging effect detection result.
According to the technical scheme of the embodiment of the invention, the test case can be analyzed to obtain the test data, and the test data is sent to the head-up display equipment, so that the head-up display equipment generates the image frame data buffered in the frame buffer according to the test data; generating a standard image according to the test data; acquiring image frame data in frame buffering from the head-up display device, and generating a test image based on the image frame data; and comparing the standard image with the test image to obtain an imaging effect detection result. The embodiment of the invention can generate the test image and the standard image according to the test data, detect the imaging effect of the head-up display device based on the test image and the standard image, automatically detect the imaging effect of the head-up display device, solve the problem of low detection efficiency of manually detecting the imaging effect of the head-up display device, improve the accuracy and efficiency of the imaging effect detection, shorten the imaging effect detection time, save the time cost and the labor cost of the imaging effect detection, avoid the condition that the driving safety of a driver is affected because a detector cannot timely find the abnormity of the display image of the head-up display device, and better guarantee the driving safety of the driver, thereby bringing better driving experience to the driver.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An imaging effect detection method, characterized in that the method comprises:
analyzing the test case to obtain test data, and sending the test data to head-up display equipment so that the head-up display equipment generates image frame data cached in a frame buffer according to the test data;
generating a standard image according to the test data;
acquiring the image frame data in the frame buffer from the head-up display device, and generating a test image based on the image frame data;
and comparing the standard image with the test image to obtain an imaging effect detection result.
2. The method of claim 1, wherein comparing the standard image and the test image to obtain an imaging effect detection result comprises:
comparing the standard image and the test image to determine if the test image and the standard image match;
when the test image is matched with the standard image, determining that the imaging effect detection result is qualified;
and when the test image is not matched with the standard image, determining that the imaging effect detection result is unqualified.
3. The method of claim 2, wherein said comparing said standard image and said test image to determine if said test image and said standard image match comprises:
determining whether the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image;
and when the pixel values of the pixel points in the test image are equal to the pixel values of the pixel points at the corresponding positions in the standard image, determining that the test image is matched with the standard image.
4. The method of claim 2, further comprising:
when the imaging effect detection result is unqualified, generating a marking image according to the test image and the standard image;
and generating a detection report according to the marked image and the imaging effect detection result.
5. The method of claim 4, wherein generating a marker image from the test image and the standard image comprises:
determining pixel points with pixel values unequal to corresponding pixel points of the standard image from the pixel points of the test image to obtain difference pixel points;
and marking the difference pixel points in the test image by using appointed colors to obtain the marked image.
6. The method of claim 1, wherein generating a standard image from the test data comprises:
determining an icon cutting graph and a display logic corresponding to the test data;
generating the standard image based on the test data using the icon cutout and the display logic.
7. The method of claim 1, wherein sending the test data to the heads-up display device comprises:
sending the test data to the head-up display equipment through a controller area network bus;
the acquiring the image frame data in the frame buffer from the heads-up display device includes: and acquiring the image frame data from the head-up display equipment through the controller area network bus.
8. The method of claim 7, wherein the obtaining the image frame data from the heads-up display device via the controller area network bus comprises:
sending a data acquisition instruction to the head-up display equipment through the controller area network bus so that the head-up display equipment feeds back data storage parameters according to the data acquisition instruction;
acquiring the image frame data in the frame buffer from the heads-up display device through the controller area network bus based on the data storage parameter.
9. An imaging effect detection apparatus, characterized in that the apparatus comprises:
the image frame data generating module is used for analyzing the test case to obtain test data and sending the test data to the head-up display equipment so that the head-up display equipment generates image frame data cached in a frame buffer according to the test data;
the standard image generation module is used for generating a standard image according to the test data;
a test image generation module for acquiring the image frame data in the frame buffer from the head-up display device and generating a test image based on the image frame data;
and the imaging effect detection result determining module is used for comparing the standard image with the test image to obtain an imaging effect detection result.
10. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the imaging effect detection method according to any one of claims 1 to 8 when executing the program.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the imaging effect detection method according to any one of claims 1 to 8.
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