Vehicle Peripheral Display Synthesizing Rear and Side Images
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Solution Overview
Problem
Existing vehicle peripheral display systems cause complexity and misinterpretation due to frequent image switching when displaying blind spots, making it difficult for viewers to recognize objects in blind areas.
Innovation Solution
A peripheral display device that synthesizes rear and side camera images to create a continuous display, switching only when an object enters a blind spot area, reducing image switching frequency and enhancing situational awareness by displaying a second synthesized image with superimposed object areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image displayed on the display unit is switched each time a blind spot area is generated by the approach of a following vehicle, then the viewer can recognize objects in blind spots, but the image switching frequency becomes extremely high causing complexity and misinterpretation
Solution Approach 1:
The patent applies local quality by selectively switching images only in specific conditions - when objects are detected in blind spot areas. Instead of switching images based on any blind spot generation, the system evaluates object presence and switches only when necessary, creating localized quality improvement in critical areas while maintaining stability elsewhere.
Solution Approach 2:
The system changes the switching parameter from blind spot generation alone to a combination of blind spot detection plus object presence detection. This parameter modification reduces switching frequency by adding an additional condition that must be met before switching occurs, thereby resolving the contradiction between recognition accuracy and switching complexity.
2Loss of information
If the image is switched extremely frequently to show blind spot areas, then blind spot objects become visible, but the viewer may misinterpret peripheral situations such as object presence or distance
Solution Approach 1:
The system performs preliminary detection of objects in blind spot areas before switching the displayed image. By预先 detecting object presence and evaluating whether switching is necessary, the system avoids unnecessary switches that could cause misinterpretation, while still ensuring blind spot objects are visible when they exist.
Solution Approach 2:
The system uses feedback from object detection results to control image switching decisions. The detection unit continuously monitors blind spot areas and provides feedback about object presence, which then determines whether to switch the displayed image, creating a closed-loop control that balances visibility with interpretation accuracy.
3Area of stationary object
If multiple synthesized images are created and switched frequently, then comprehensive peripheral coverage is achieved, but the display becomes complex and difficult to interpret
Solution Approach 1:
The patent extracts only the necessary image synthesis mode based on detected object locations. Instead of preparing and switching between multiple synthesized images for all possible scenarios, the system extracts and displays only the specific synthesized view needed for the current object detection situation, reducing display complexity while maintaining comprehensive coverage.
Data Source
AI summary
A rear-facing camera of an electronic mirror device acquires a rear image of an area to the rear of a vehicle, and a left rear-side facing camera and a right rear-side facing camera acquire rear side-images of areas to the rearward sides of the vehicle. An electronic mirror ECU then creates a normal synthesized image by synthesizing the rear image acquired by the rear-facing camera with the rear side-images acquired by the rear-side facing cameras, and then displays the normal synthesized image on a display unit. Additionally, the electronic mirror ECU creates a blind spot priority synthesized image in which the rear side-image that contains an image area corresponding to the object is superimposed onto the rear image, and switches the image displayed on the display unit to this blind spot priority synthesized image.