Vehicle Display Control Device for Rearview Camera Gap Filling
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Solution Overview
Problem
The orientation of side cameras on vehicles changes due to movable parts, leading to incomplete capture of the rearview checking range, resulting in gaps in the imaging area.
Innovation Solution
An on-vehicle display control system that adjusts video images displayed on side monitors by clipping and combining rearview camera data with data from side cameras, ensuring comprehensive coverage of the rearview area even when the side cameras cannot capture the full imaging range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the side camera is placed in the movable part that moves with respect to the vehicle body, then the wider rearview checking range can be acquired, but the orientation of the side camera is changed due to the operation of the movable part and the imaging range is changed, resulting in incomplete capture of the rearview checking range
Solution Approach 1:
The patent divides the rearview checking range into multiple imaging ranges, each captured by a different camera. The side camera captures one imaging range while the rear camera captures another imaging range, and the display control unit combines these segmented views to form a complete rearview display, ensuring no gaps in the monitoring coverage
Solution Approach 2:
The display control unit acts as an intermediary that receives video images from both the side camera and rear camera, processes them by clipping to appropriate imaging ranges, and combines them into a unified rearview display. This mediator ensures that even when the side camera's orientation changes, the complete rearview range is maintained through supplementation from the rear camera
2Area of stationary object
If the side camera is placed apart from the side part of the vehicle body to acquire wider rearview checking range, then the imaging coverage is improved, but the camera orientation changes due to movable part operation causing gaps in the imaging area
Solution Approach 1:
The rear camera serves multiple functions: it captures the rear view for normal rearward checking and supplements the side camera's imaging range when the movable part operates. This multi-functional approach allows the system to maintain wide imaging coverage without adding more specialized cameras, thereby reducing overall system complexity
Solution Approach 2:
The system dynamically changes the imaging parameters by selecting different clipping ranges from the rear camera video image based on the movable part's operation state. When the side camera's orientation changes, the display control unit adjusts which portion of the rear camera's field of view is displayed to fill the gap, effectively adapting the imaging parameters to maintain complete coverage
Data Source
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AI summary
An on-vehicle display control device includes a video image data acquiring unit 42 configured to acquire side rear video image data captured by a right side camera 12 and a left side camera 13 each provided in a movable part, and rear video image data captured by a rear camera 11; and a display controller 45 configured to clip and display , on a right side monitor 32 or a left side monitor 33, the side rear video image data so as to include a predetermined imaging range defined by a rearview checking range based on the right side camera 12 or the left side camera 13 and to display, on the right side monitor 32 or the left side monitor 33, when the movable part is operated and the right side camera 12 or the left side camera 13 faces a direction in which the predetermined imaging range cannot be captured, at least one of a first video image from the right side camera 12 or the left side camera 13 and a second video image from the rear camera 11.