Rear-View Mirror Image Rectification for Natural Hazard Display
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Solution Overview
Problem
Current vehicle exterior mirror systems fail to effectively blend additional information into natural images, making it difficult for drivers to perceive traffic situations, and existing camera systems distort images, which are not optimally corrected for realistic viewing.
Innovation Solution
A system that includes image rectification and an object detection and classification module, using periodic descriptor functions to enhance pixel positioning and object classification, providing intuitive and subtle additional information through color, contour, and halo effects on the display, while correcting image distortions for a more realistic view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If camera images are presented in a mostly realistic way with enhancements in image quality, then image clarity is improved, but additional information appears as a foreign object rather than blending into the natural image
Solution Approach 1:
The patent applies color changes by using colored halos and contours (e.g., red, yellow, green colors) to encode different levels of danger and object characteristics. These color-coded visual elements are integrated into the natural image rather than appearing as separate overlays, allowing additional information to blend seamlessly while remaining visually distinct through color differentiation.
Solution Approach 2:
The patent adds another dimension by incorporating temporal dynamics through animated icons and changing visual elements that respond to object motion and danger levels. This creates a multi-dimensional information presentation that integrates seamlessly with the static natural image, providing additional context without appearing as a foreign overlay.
2Area of stationary object
If wide-angle lens is used to record images from surroundings, then field of view is improved, but image distortion increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting image rectification parameters based on the detected object's position, distance, and motion characteristics. The system modifies distortion correction levels selectively in different regions of the image, maintaining accurate geometry for distant objects while preserving the wide-angle perspective for nearby objects, thus resolving the contradiction between field of view and image accuracy.
3Loss of information
If artificial lines are drawn to visualize lane in dependence of steering-wheel position, then navigation information is improved, but visual complexity increases
Solution Approach 1:
The patent applies partial action by selectively displaying navigation aids only when specific conditions are met, such as when the vehicle is in parking mode or when lane detection confidence is low. The system draws artificial lane lines only in regions where they provide value, leaving other areas unchanged, thus providing necessary navigation information while minimizing overall visual complexity.
Data Source
AI summary
Systems and methods are provided for generating a rear view image display for a motor vehicle. A rear view system includes an optical sensor disposed at the motor vehicle and configured to capture image data, a computational unit coupled to the optical sensor by a cable connection and configured to execute program instructions stored on a computer-readable medium to modify the image data for presentation, and a display device coupled to the computational unit and configured to receive the modified image data from the computational unit and display the modified image data to a driver of the motor vehicle. The computational unit is further configured to receive software calibration to optimize modification of the image data.