Information processing device, information processing method, and program

Abstract

To make it possible to inspect an integrity of a sticking detection function in a single product without requiring additional tools or other equipment.SOLUTION: An information processing device includes: a video image processing unit that superimposes a predetermined image on a first video input from an outside and outputs the first video as a second video; and a controller that outputs the second video to a display when the first video and the second video are input and a pixel value of each frame of the second video changes with time, and switches a video path so that the first video is output to the display when the second video is a fixed video in which the pixel value of each frame does not change with time. The video image processing unit has a mode of outputting a still image simulating the fixed video instead of the second video.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] Conventionally, a vehicle-mounted device generates a composite image by combining an image captured by a camera with guide information such as guide lines during driving, and displays the composite image on the vehicle display to assist driving. For example, Patent Document 1 discloses a method for generating a composite image by combining an image captured by a camera with guide information such as guide lines and displaying the composite image on the vehicle display. When this occurs and the image from the microcomputer becomes a stuck image (a group of frames of the same image without movement), the sticking detection unit of the image processing device (video decoder) detects the abnormality and causes the image processing device to display the image from the camera on the display without going through the microcomputer that draws the guide lines (hereinafter referred to as the sticking detection function). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-81445 Summary of the Invention [Problem to be solved by the invention]

[0004] Before shipping an in-vehicle device or other product, it is necessary to check and inspect whether the sticking detection unit that detects the stuck image is operating normally. The following methods are considered as methods for checking the operation of such a sticking detection function.

[0005] The first method is to externally forcibly change the image transfer path of the bus within the image processing device so that the image processing device displays the image from the camera directly on the display without going through the microcomputer. The inspector simply needs to confirm that the image from the camera is displayed directly on the display, for example.

[0006] In the second method, for example, an examiner first inputs a still image from a camera. Then, the sticking detection unit of the image processing device determines that the still image is a stuck image, and the sticking detection function causes the still image from the camera to be displayed on the display. The examiner simply checks that the still image from the camera is displayed as is on the display.

[0007] However, the first method described above is not a complete inspection method because it does not inspect the integrity of the sticking detection function itself. Furthermore, the second method requires additional equipment, such as a tool for inputting still images. Furthermore, in the case of an analog input camera, pixel values ​​may change even when a still image is input, potentially preventing the sticking detection function from working. An aspect of the disclosed embodiments is that the integrity of the sticking detection function can be inspected using a single product, without the need for additional equipment, such as a tool. [Means for solving the problem]

[0008] One aspect of the disclosed embodiment is exemplified by an information processing device mounted on a vehicle. The information processing device includes: a video processing unit that superimposes a predetermined image on a first video input from an external device and outputs the superimposed image as a second video; and a controller that switches a video path so that, when the first video and the second video are input and the pixel values ​​of each frame of the second video change over time, the second video is output to a display; and, when the second video is a fixed video in which the pixel values ​​of each frame do not change over time, the first video is output to the display. The video processing unit also includes a mode that outputs a still image simulating a fixed video instead of the second video. [Effects of the Invention]

[0009] The information processing device includes a video processing unit that superimposes a predetermined image on a first video input from an external device and outputs the superimposed image as a second video; and a controller that switches a video path so that, when the first video and the second video are input and the pixel values ​​of each frame of the second video change over time, the second video is output to the display, and when the second video is a stuck video in which the pixel values ​​of each frame do not change over time, the first video is output to the display. The video processing unit also includes a mode that outputs a still image simulating a stuck video in place of the second video. In this mode, the video processing unit outputs the still image simulating a stuck video in place of the second video, thereby simulating an abnormal state for the controller. Therefore, the information processing device can test the soundness of the sticking detection function by itself without requiring additional equipment such as tools. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating the configuration of an information processing apparatus according to an embodiment and a sticking detection function. [Figure 2] FIG. 2 is a diagram illustrating an example of a configuration and processing for checking the operation of the internal bus switching function when a sticking is detected. [Figure 3] FIG. 3 is a diagram illustrating an example of an image displayed on a display in the process of FIG. [Figure 4] FIG. 4 is a diagram illustrating an example of an image displayed on a display in the process of FIG. [Figure 5] FIG. 5 is a flowchart illustrating an example of inspection processing of a video IC by the main microcomputer. DETAILED DESCRIPTION OF THE INVENTION

[0011] An information processing device 1, an information processing method, and a program according to an embodiment will be described below with reference to the drawings.

[0012] (composition) FIG. 1 is a diagram illustrating the configuration of an information processing device 1 according to this embodiment and a sticking detection function. FIG. 1 also illustrates an external video input device 16 connected to the information processing device 1. The information processing device 1 is, for example, an in-vehicle video device. The information processing device 1 is, for example, a Head / Unit ( In other words, the information processing device 1 may have, for example, audio, visual, and navigation functions. However, the information processing device 1 is not limited to an in-vehicle video device.

[0013] The information processing device 1 includes a main microcontroller (hereinafter referred to as a main microcomputer 11), a video integrated circuit (hereinafter referred to as a video IC 13), and a video interface (hereinafter referred to as a video IF 14). ) and a display 15. In addition, an external video input device 16 is connected to the video IF 14.

[0014] The main microcomputer 11 is an example of a video processing unit and controls the entire information processing device 1. The main microcomputer 11 is, for example, a device called a System on a Chip (SoC), and has various elements mounted on one chip. The main microcomputer 11 has, for example, a Central Processing Unit (CPU) and a memory. The CPU executes executable programs deployed in the memory. The CPU executes computer programs and provides the functions of the main microcomputer 11. The CPU is not limited to a single processor and may have a multi-processor configuration. In addition to the CPU, the main microcomputer 11 may also have a graphics processing unit (GPU), a digital signal processor (DSP), etc.

[0015] Memory stores the computer programs executed by the CPU, the data processed by the CPU, etc. Memory is classified into Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Memory (SRAM), Read Only Memory (ROM), etc. The controller can be called a control unit.

[0016] The main microcomputer 11 has an image synthesis unit 111, which is, for example, a module consisting of a CPU and a memory in which a program is executable. The image synthesis unit 111 generates a synthesized image by superimposing an image on the image (moving image) input from the image IC 13, and returns the synthesized image to the image IC 13. The image input from the image IC 13 is, for example, an image captured by the external image input device 16. The synthesized image is, for example, an image in which additional information for driving assistance or the like is synthesized with a moving image of the rear of the vehicle captured by the external image input device 16.

[0017] The additional information is, for example, guide lines that display the positional relationship between the subject or components within the angle of view captured by the external video input device 16 and the vehicle in which the information processing device 1 is installed. The guide lines are, for example, stored in advance as image data in the memory of the main microcomputer 11. The additional information may also be a graphics object, a character string, or the like that draws the driver's attention.

[0018] As described above, main microcomputer 11 can be said to be an example of a video processing unit that superimposes the additional information, as an example of a predetermined image, on a first video input from outside and outputs the resulting video as a second video. Here, the first video is a video captured by external video input device 16, as will be described later. Note that, although video synthesis unit 111 is mounted on main microcomputer 11 in FIG. 1, video synthesis unit 111 may also be mounted on a device other than main microcomputer 11 and operate in cooperation with main microcomputer 11.

[0019] The video IC 13 has a CPU, memory, a processor element array, and an input / output unit. The CPU controls the processor element array using a computer program in the memory, providing the functions of the video IC 13. The video IC 13 receives a video signal captured by an external video input device 16 from port P1 via the video IF 14, decodes the received video signal, and converts it into a video format that can be displayed on the display 15.

[0020] Under normal conditions where no abnormality such as sticking is detected, the video IC 13 transfers the video converted into a displayable format to the video synthesis unit 111 mounted on the main microcomputer 11 or the like via port P2, and acquires the composite image from port P3. The video IC 13 then outputs the acquired composite image from port P4 to the display 15 for display (internal bus routes R11 and R12). Therefore, the video IC 13, as an example of a controller, can be said to input moving images acquired by the external video input device 16 to the main microcomputer 11, as an example of a video processing unit. Furthermore, the video IC 13, as an example of a controller, can be said to receive a first video and a second video, and, if the pixel values ​​for each frame of the second video change over time, execute a process of outputting the second video to the display.

[0021] In this embodiment, the video IC 13 includes a sticking detection unit 131 and a register group 132 as an example of a controller. The sticking detection unit 131 detects abnormalities in the main microcomputer 11 and the like. That is, the sticking detection unit 131 determines whether a composite image (video) transmitted from the video synthesis unit 111 of the main microcomputer 11 and the like is a stuck image, and detects sticking. A stuck image is an image in which each frame that makes up the video is the same image without any change. When the sticking detection unit 131 detects that the video is stuck, it sets the detection result in one register of the register group 132.

[0022] The video IC 13 and the main microcomputer 11 are connected by a serial communication line such as an Inter Integrated Circuit (I2C) etc. The main microcomputer 11 can access the register group 132 via the serial communication line and acquire the detection result of the sticking detection unit 131.

[0023] Furthermore, when the video IC 13 detects a fixation, it receives the video via the video IF 14 and outputs the decoded video directly from port P4 to the display 15 (internal bus route R2) without handing it over to the main microcomputer 11. The internal bus routes R11, R12, and R2 can be considered video routes through which video is transferred. That is, the video IC 13, as an example of a controller, executes processing to switch the video route so that the first video is output to the display when the second video is a fixed video in which the pixel values ​​for each frame do not change over time.

[0024] That is, if the composite image (video) is a fixed image, i.e., if the video is fixed, video IC 13 switches the video path so that the moving image acquired by external video input device 16 is output directly to display 15 without going through main microcomputer 11. On the other hand, if the composite image (video) is not a fixed image, i.e., if the video is not fixed, video IC 13 outputs the composite image (video) output from main microcomputer 11 to display 15. As described above, video IC 13 can be said to be an example of a controller.

[0025] Such a fixation detection function and a function for switching the internal bus from routes R11 and R12 to R2 are particularly effective during driving assistance. For example, if image fixation occurs while the vehicle is moving and a driving assistance image is being displayed on display 15, the image captured by external image input device 16 and which should change as the vehicle moves will be fixed on display 15. Here, when the image from image synthesis unit 111 of main microcomputer 11 or the like is fixed, information processing device 1 outputs the image from external image input device 16 to display 15. As a result, information processing device 1 can provide the driver with the image from external image input device 16 at that time, i.e., the image which changes as the vehicle moves, without any additional information.

[0026] The video IF 14 is a communication device that receives a video signal from the external video input device 16. The external video input device 16 is, for example, a camera. In the example of FIG. 1, the external video input device 16 captures an image of a building, such as a garage, behind the vehicle in which the external video input device 16 is installed, and transmits a video signal of the image V1 to the video IC 13 via the video IF 14. The video IC 13 superimposes additional information, such as guide lines L1, on the image V1 using the image synthesis unit 111 of the main microcomputer 11, and outputs the image V1 to the display 15. Therefore, the image V1 captured by the external video input device 16 can be considered an example of a first image input from the outside. Furthermore, the additional information, such as the guide lines L1, can be considered an example of a predetermined image. Furthermore, the image with the additional information, such as the guide lines L1, superimposed on the image V1 and output to the display 15 can be considered an example of a second image. Therefore, the main microcomputer 11 can be considered an example of an image processing unit that superimposes a predetermined image on the first image input from the outside and outputs the second image.

[0027] 2 is a diagram illustrating an example of a configuration and processing for checking the operation of the internal bus switching function when sticking is detected. In the information processing device 1 in FIG. 2, an in-test video generation unit 112 for checking the operation and a sticking image generation unit 113 are added to the main microcomputer 11.

[0028] First, as explained in Fig. 1, under normal conditions, the video IC 13 receives and decodes the video signal of the video V1 captured by the external video input device 16 from the port P1 via the video IF 14. The video IC 13 then inputs the decoded video V1 to the main microcomputer 11, and outputs the composite image synthesized by the video synthesis unit 111 of the main microcomputer 11 to the display 15.

[0029] The under-inspection video generation unit 112 generates a video (called under-inspection video V2) indicating that an inspection is underway, and delivers the generated under-inspection video V2 from port P3 to the video IC 13 instead of the video from the video composition unit 111. As a result, the under-inspection video V2 is displayed on the display 15, allowing the inspector to recognize that inspection of the video IC 13 has started or is underway.

[0030] The stuck image generating unit 113 creates a still image ST that simulates an abnormal state during an inspection while the in-inspection video V2 is displayed on the display 15, and outputs the still image ST from port P3 to the video IC 13. In FIG. 2, the still image ST is an image that includes the character string "NG." Note that the still image ST may be one that is stored in the memory of the main microcomputer 11. The stuck image generating unit 113 may read the still image ST from the memory and output it to the video IC 13 from port P3.

[0031] The video IC 13 then determines that the still image ST is a fixed image, and the fixation detection function is activated. That is, as described in FIG. 1, the video IC 13 receives the decoded video V1 via the video IF 14 and outputs it directly to the display 15 from port P4 (internal bus route R2) without passing it to the main microcomputer 11. In this way, the fixed-image generator 113 simulates a fixation and checks the operation of the video IC 13's fixation detection function and internal bus switching function. The video IC 13 can be considered an example of a controller that switches video paths when a first video and a second video are input, and outputs the second video to the display if the pixel values ​​of each frame of the second video change over time, and outputs the first video to the display 15 if the second video is a fixed video, in which the pixel values ​​of each frame do not change over time.

[0032] (Display example) Figures 3 and 4 are diagrams showing examples of images displayed on display 15 during the processing of Figure 2. In Figures 3 and 4, it is assumed that the display on display 15 changes from the image on the left side of each arrow in each diagram to the image on the right side during the examination.

[0033] 3A is a diagram illustrating an example of the display on the display 15 when the sticking detection function and the internal bus switching function are operating normally. To the left of the arrow in FIG. 3A, the display 15 displays an in-test video V2. This allows the inspector to recognize that the inspection of the video IC 13 has started or is currently being inspected. Here, the arrow in FIG. 3A indicates that the sticking image generator 113 of the main microcomputer 11 has created a still image ST simulating an abnormal state and output it from port P3 to the video IC 13.

[0034] 3(A), the video V1 captured by the external video input device 16 is displayed on the display 15. The video V1 is not a composite image (see FIG. 1) on which additional information such as guide lines L1 is superimposed, but is a video signal of the video V1 captured by the external video input device 16 that is received from port P1 via the video IF 14 and decoded by the video IC 13.

[0035] Therefore, from the change in display on the display 15 on the left and right of the arrow in Fig. 3(A), it can be seen that the sticking detection function of the video IC 13 worked properly and the still image ST simulating an abnormal state was detected as a stuck image. As a result of the sticking detection, the video IC 13 switched the video path of the internal bus from paths R11 and R12 in Fig. 2 to path R2, and it can be seen that the video V1 captured by the external video input device 16 was displayed on the display 15 as is.

[0036] 3B is a diagram showing an example of the display on the display 15 when at least one of the operation of the sticking detection function and the internal bus switching function is abnormal. On the other hand, the display 15 displays the in-test video V2. Then, the sticking image generating unit 113 of the main microcomputer 11 or the like creates a still image ST simulating an abnormal state and outputs it from port P3 to the video IC 13. In this embodiment, the still image ST includes text, graphics objects, etc. indicating that the sticking detection is not functioning properly, such as NG, error, or sticking detection abnormality. In other words, the still image ST can be considered an example of an image including information indicating that the determination that the second video is a stuck video is not functioning properly.

[0037] In the case of FIG. 3(B), as shown on the right side of the arrow, the still image ST is displayed as is on the display 15. Therefore, it can be seen that the video IC 13 is displaying the still image ST input from the sticking image generating unit 113 as is on the display 15. In this case, at least one of the sticking detection function of the video IC 13 is not operating normally, or the internal bus switching function of the video IC 13 is not operating normally. Therefore, the inspector can determine whether or not there is a defect in the sticking detection function or the internal bus switching function of the video IC 13 from the change in display as shown on the left and right displays 15 in FIG. 3(B).

[0038] FIG. 4(A) is a diagram illustrating another display method of the display 15 when the sticking detection function is operating normally. The in-examination video V4 on the left side of the arrow in FIG. 4(A) is obtained by superimposing additional information, such as a character string indicating "in examination," elapsed time information such as tt:mm:ss, and guide lines L1, on the video V1 captured by the external video input device 16. By displaying in this manner, the information processing device 1 can use the video V1 captured by the external video input device 16 to indicate that an examination is in progress. The in-examination video V4 is an example of a moving image indicating a mode, in which additional information, including information indicating that an examination is in progress, is superimposed on the first video input from the external video input device 16.

[0039] 4(A), the display 15 displays the text "Stickness detection normal" and additional information indicating normality, such as a graphic object of a hand with a thumb up, on the image V1 captured by the external image input device 16. By displaying the image in this manner, the examiner can easily recognize that at least the stickness detection function is normal during the examination.

[0040] Specifically, the main microcomputer 11 outputs a still image ST simulating an abnormal state from port P3 to the video IC 13, and then acquires the value of the sticking detection register from the register group 132 of the video IC 13 via serial communication such as I2C. If the register value indicates that sticking has been detected correctly, the main microcomputer 11 may stop outputting the still image ST to the video IC 13 and output a video (moving image) indicating that the sticking detection is normal to the video IC 13. Then, the video IC 13 no longer detects sticking, and outputs a video (moving image) indicating normal operation to the display 15.

[0041] As another processing example, when the register value indicates that sticking has been detected correctly, the main microcomputer 11 may instruct the video IC 13 via serial communication to combine the video V1 with the additional information. That is, the main microcomputer 11 may instruct the video IC 13 to superimpose the additional information on the video V1 transferred via the route R2 of the internal bus, combine the video V1, and output the combined video to the display 15. The video IC 13 may then superimpose the additional information on the video V1 and display it on the display 15.

[0042] The left side of the arrow in Figure 4(B) is the same as in Figure 4(A). Furthermore, in Figure 4(A), the display 15 displays additional information indicating normality, such as the text "Bus switching normal" and a graphic object of a hand with a thumb up, in the image V1 captured by the external image input device 16. By displaying the information in this manner, the examiner can easily recognize during the examination that the sticking detection function and the internal bus switching function are normal.

[0043] After outputting the still image ST simulating an abnormal state from port P3 to the video IC 13, the main microcomputer 11 obtains, by some means, whether the internal bus has been switched normally. For example, the video IC 13 may set a value indicating that the internal bus has been switched normally in one of the registers of the register group 132. After outputting the still image ST simulating an abnormal state from port P3 to the video IC 13, the main microcomputer 11 may obtain the register value of the video IC 13 via serial communication such as I2C.

[0044] Then, if the register value indicates that the internal bus has been switched normally, the output of the still image ST to the video IC 13 may be stopped, and a video (video) indicating that the internal bus has been switched normally may be output to the video IC 13. Then, the video IC 13 will no longer detect the sticking, and will output a video (video) indicating that the internal bus has been switched normally to the display 15 in accordance with normal operation.

[0045] As another processing example, when the register value indicates that the internal bus has been switched normally, the main microcomputer 11 may instruct the video IC 13 via serial communication to combine the video V1 with the additional information. That is, the main microcomputer 11 may instruct the video IC 13 to superimpose the additional information on the video V1 transferred via the internal bus route R2, and output the combined video to the display 15. The video IC 13 may then superimpose the additional information on the video V1 and display it on the display 15.

[0046] (Processing Procedure) 5 is a flowchart illustrating an inspection process of the video IC 13 by the main microcomputer 11. In this process, the main microcomputer 11 first outputs an inspection video V2 to the video IC 13 using the inspection video generation unit 112 (S1). However, the main microcomputer 11 may also output an inspection video V4 to the video IC 13, in which additional information including information indicating that an inspection is in progress is superimposed on the video V1 captured by the external video input device 16. Therefore, the process of S1 is an example of outputting to the display 15 a moving image indicating a mode, in which additional information including information indicating that an inspection is in progress is superimposed on the first video input from the external video input device 16.

[0047] Next, the main microcomputer 11 causes the stuck image generating unit 113 to output a still image ST simulating an abnormal state to the video IC 13 (S2). The process of S2 is an example of a process in a mode in which a determination process of whether or not the video is stuck is performed by outputting a still image ST simulating a stuck video, instead of the second video, to the video IC 13, which is an example of a controller. The processes of S1 and S2 are also an example of outputting a still image ST following a moving image in this mode.

[0048] Then, the main microcomputer 11 accesses the video IC 13 via serial communication such as I2C, and reads the value of the register for determining sticking among the register group 132 (S3).Then, the main microcomputer 11 determines whether the sticking detection function is normal or not (S4).

[0049] If the sticking detection function is normal, the main microcomputer 11 outputs an image indicating that the sticking detection function is normal to the display 15 via the image IC 13 (S5). The image indicating that the sticking detection function is normal is, for example, simply the image V1 captured by the external image input device 16, as exemplified to the right of the arrow in FIG. 3(A). However, the main microcomputer 11 may also display, for example, the image exemplified to the right of the arrow in FIG. 4(A), i.e., an image in which additional information indicating that the sticking detection function is normal is superimposed on the image V1. Therefore, in the process of S5, the main microcomputer 11, as an example of an image processing unit, outputs a still image ST, and then the image IC 13, as an example of a controller, detects that the image is a stuck image. The process of S5 can be considered as an example of the main microcomputer 11 stopping the output of the still image ST and outputting a moving image including an image indicating that the sticking detection is normal when sticking is detected.

[0050] Next, the main microcomputer 11 accesses the video IC 13 via serial communication such as I2C, and reads the value of the register for determining internal bus switching among the register group 132 (S6).Then, the main microcomputer 11 determines whether the internal bus switching process is normal or not (S7).

[0051] If the internal bus switching process is normal, the main microcomputer 11 outputs a video indicating that the internal bus switching process is normal to the display 15 via the video IC 13 (S8). The video indicating that the internal bus switching process is normal is, for example, simply the video V1 captured by the external video input device 16, as shown to the right of the arrow in FIG. 3(A). However, the main microcomputer 11 may also display, for example, the video shown to the right of the arrow in FIG. 4(B), i.e., a video in which additional information indicating that the internal bus switching function is normal is superimposed on the video V1. Therefore, the process of S8 is an example of stopping the output of the still image ST and outputting a moving image including an image indicating that the video path switching is normal, if it is confirmed that the video path has been switched normally after outputting the still image ST.

[0052] Then, the main microcomputer 11 ends the processing. Furthermore, the main microcomputer 11 ends the processing immediately if the determination in S4 is that the sticking detection function is abnormal, or if the determination in S7 is that the internal bus switching function is abnormal. Then, a still image ST simulating an abnormal state, as shown in FIG. 3(B), is displayed on the display 15. Therefore, the inspector can immediately recognize from the display 15 that the sticking detection function or the internal bus switching function is abnormal.

[0053] (Effects of the embodiment) Main microcomputer 11, which functions as a video processing unit, outputs video obtained by performing image processing on moving images acquired by external video input device 16, which captures the exterior of the vehicle. Meanwhile, video IC 13, which functions as a controller, inputs a first video, which is a moving image acquired by external video input device 16, to main microcomputer 11. Video IC 13 then determines whether the pixel values ​​of the second video output from main microcomputer 11 do not change over time, i.e., whether the second video is fixed. If the second video output from main microcomputer 11 is not fixed, video IC 13 outputs the second video to display 15. In other words, if the pixel values ​​of each frame of the second video change over time, video IC 13 outputs the second video to display 15.

[0054] On the other hand, if the second image output from the main microcomputer 11 is fixed, the image IC 13 switches the image path so that the first image, which is a moving image acquired by the external image input device 16, is output directly to the display 15 without going through the main microcomputer 11. That is, if the second image is a fixed image in which the pixel values ​​for each frame do not change over time, the image IC 13 switches the image path so that the first image is output to the display 15. The main microcomputer 11 also has a mode for testing the determination process of whether the second image output from the main microcomputer 11 is a fixed image by outputting a still image ST that simulates a fixed image to the image IC 13 instead of the second image. By outputting the still image ST to the image IC 13, the main microcomputer 11 can simulate an abnormal state. Therefore, the information processing device 1 can test the soundness of the fixation detection function by itself without requiring additional equipment such as tools. In addition, the information processing device 1 can inspect the sticking detection function even if the type of image from the external image input device 16 is analog image. Furthermore, the information processing device 1 can inspect the sticking detection function in a state closer to the actual operation in the market or when used by a user. Therefore, in this embodiment, The inspection method of the embodiment can improve the level of assurance through inspection.

[0055] In the inspection mode, the main microcomputer 11 outputs a still image ST following a moving image, so that the main microcomputer 11 can inspect the sticking detection function of the video IC 13 in a situation close to actual processing.

[0056] In the inspection mode, the main microcomputer 11 outputs a moving image indicating the mode, in which additional information including information indicating that an inspection is in progress is superimposed on the first image input from the external image input device 16. Therefore, the main microcomputer 11 or the information processing device 1 can use the moving image input from the external image input device 16 to make the inspector aware that an inspection is in progress.

[0057] The still image ST is an image including information indicating that the sticking detection is not functioning normally, for example, a character string such as "NG." When the sticking detection is not functioning normally, the video IC 13 outputs the video or image (including information indicating that the sticking detection is not functioning normally) output from the main microcomputer 11 to the display 15. Therefore, the information processing device 1 can easily make the examiner recognize that the sticking detection is not functioning normally.

[0058] After outputting a still image ST simulating an abnormal state, the main microcomputer 11 stops outputting the still image ST when the video IC 13 detects that the image is stuck. Then, the main microcomputer 11 outputs a moving image including an image indicating that the sticking detection is normal to the video IC 13. Therefore, the main microcomputer 11 or the information processing device 1 can easily let the examiner recognize that the sticking detection function is normal.

[0059] After outputting the still image ST simulating an abnormal state, if the main microcomputer 11 confirms that the video path has been switched normally, it stops outputting the still image ST and outputs a moving image including an image indicating that the video path has been switched normally. Therefore, the main microcomputer 11 or the information processing device 1 can easily make the examiner recognize that the video path switching process is normal.

[0060] (Variation) 5, the processes from S6 to S8 may be omitted. Even if the main microcomputer 11 does not determine whether the internal bus switching function is normal, if the internal bus switching process is normal, the video IC 13 displays the video V1 captured by the external video input device 16 on the display 15. As a result, the inspector can recognize that the sticking detection function and the internal bus switching function are normal.

[0061] (Computer-readable recording medium) A program that causes a computer or other machine or device (hereinafter referred to as a computer, etc.) to realize any of the above functions can be recorded on a computer-readable recording medium. Then, by having the computer, etc. read and execute the program from this recording medium, the function can be provided.

[0062] Here, a computer-readable recording medium refers to a recording medium that stores information such as data and programs electrically, magnetically, optically, mechanically, or chemically and can be read by a computer. Among such recording media, those that can be removed from a computer include, for example, flexible disks, magneto-optical disks, CDs (Compact Discs), DVDs (Digital Versatile Discs), Blu-ray Discs, and memory cards such as flash memory. Furthermore, examples of recording media that are fixed to a computer include hard disks and ROMs (Read Only Memory). Furthermore, SSDs (Solid State Drives) ) can be used as a recording medium that can be removed from a computer or the like, or as a recording medium that is fixed to a computer or the like. [Explanation of symbols]

[0063] 1. Information processing equipment 11 Main microcomputer 13 Video IC 14 Video IF 15 Display 16 External video input device 111 Video synthesis unit 112 Inspection image generation unit 113 Fixation image generation unit 131 Sticking detection unit 132 registers

Claims

1. An information processing device mounted on a vehicle, an image processing unit that superimposes a predetermined image on a first image input from an external device and outputs the superimposed image as a second image; a controller that switches a video path to receive the first video and the second video, and to output the second video to a display when pixel values ​​for each frame of the second video change over time, and to output the first video to a display when the second video is a fixed video in which pixel values ​​for each frame do not change over time; The image processing unit has a mode in which a still image simulating the fixed image is output instead of the second image. Information processing device.

2. The information processing device according to claim 1 , wherein the video processing unit outputs the still image following a moving image indicating the mode in the mode.

3. The information processing device according to claim 2 , wherein the video processing unit outputs a moving image indicating the mode in which additional information including information indicating that an examination is in progress is superimposed on the first image in the mode.

4. The information processing device according to claim 1 , wherein the still image is an image including information indicating that the determination of the second image as a fixed image is not functioning normally.

5. 2. The information processing device according to claim 1, wherein, after outputting the still image, if the controller detects that the second image is a stuck image, the image processing unit stops outputting the still image and outputs a moving image including an image indicating that the sticking detection is normal.

6. 2. The information processing device according to claim 1, wherein, after outputting the still image, if the controller confirms that the video path has been switched successfully, it stops outputting the still image and outputs a moving image including an image indicating that the video path has been switched successfully.

7. An information processing method in which a video processing unit superimposes a predetermined image on a first video input from an external device and outputs the superimposed image as a second video, and inspects a controller, the controller receives the first image and the second image, and when pixel values ​​for each frame of the second image change over time, outputs the second image to a display, and when the second image is a fixed image in which pixel values ​​for each frame do not change over time, switches the image path so as to output the first image to a display; The image processing unit has a mode for outputting a still image simulating the stuck image instead of the second image, and inspects the controller. Information processing methods.

8. an image processing unit that superimposes a predetermined image on a first image input from an external device and outputs the superimposed image as a second image; a program for inspecting a controller that switches an image path so that the first image and the second image are input, and if pixel values ​​for each frame of the second image change over time, the second image is output to a display, and if the second image is a fixed image in which pixel values ​​for each frame do not change over time, the controller outputs the first image to a display, and causing the image processing unit to operate in a mode in which a still image simulating the stuck image is output to the controller instead of the second image, thereby inspecting the controller. program.

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