Rear-View Imaging Layout With Low-Distortion Center and Wide Coverage
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Solution Overview
Problem
Existing vehicle rear view systems face challenges with high-resolution cameras causing distortion and requiring multiple cameras for wide-angle views, leading to complex image processing and potential delays in obstacle recognition.
Innovation Solution
An image processing system using a combination of cameras with optical systems that capture images with low and high distortion regions, allowing for high-resolution, low-distortion central views and wide-angle, low-resolution peripheral views, and integrated image processing units for real-time recognition and correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-resolution camera is used to capture distant rear views in detail, then image quality is improved, but the field of view is limited and cannot cover wide areas including blind spots
Solution Approach 1:
The patent divides the imaging task into two segments: a main camera capturing the central rear view with high resolution, and auxiliary cameras capturing peripheral areas including blind spots with lower resolution. This segmentation allows each camera to be optimized for its specific function, resolving the contradiction between image quality and field of view coverage.
Solution Approach 2:
The patent merges multiple camera feeds (main camera and auxiliary cameras) into a single composite image displayed to the driver. The main image shows the central rear view in high definition, while the auxiliary images show peripheral areas, creating a comprehensive view that combines both high quality and wide coverage.
2Adaptability or versatility
If multiple cameras are installed separately for electronic rear view mirror system and rear confirmation system, then both functions are achieved, but system complexity increases
Solution Approach 1:
The main camera serves multiple functions: it provides the primary rear view for the electronic rear view mirror system and also contributes to the rear confirmation system. The auxiliary cameras provide supplementary coverage for both systems. This multi-functionality reduces the total number of cameras needed while maintaining both system functionalities.
Solution Approach 2:
The patent combines the electronic rear view mirror system and rear confirmation system into a single integrated system that shares cameras and processing resources. Instead of having separate camera sets for each function, the systems share the main camera and auxiliary cameras, reducing hardware complexity and integration burden.
3Area of stationary object
If distortion correction is performed on ultra-wide-angle lens images, then wide area coverage is achieved, but processing time increases causing recognition delays
Solution Approach 1:
The patent applies different image processing qualities to different regions: the main camera's central view requires minimal distortion correction and can be processed quickly, while the auxiliary cameras' peripheral views accept higher distortion in exchange for expanded coverage. This local quality approach prioritizes speed for critical central areas while accepting distortion in less critical peripheral areas.
Solution Approach 2:
The patent performs partial distortion correction only on the main camera's central field of view, which is sufficient for the driver's primary viewing needs. The auxiliary cameras' peripheral areas are displayed with minimal or no distortion correction, accepting some distortion to maintain real-time processing and avoid recognition delays.
Data Source
AI summary
An image processing system includes an imaging unit configured to include an optical system that forms an optical image having a low distortion region and a high distortion region, to be able to capture an image of at least an outer rear side of a movable apparatus in the low distortion region, and to be disposed such that an inside of the movable apparatus is included in an angle of view of the optical system, and a display unit configured to display image signals of the inside and outside of the movable apparatus which are generated by the imaging unit.