Vehicle Camera Brightness Matching for Dim Hitching Maneuvers
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Solution Overview
Problem
Vehicle camera images often suffer from reduced brightness in regions of interest during maneuvers like hitching or parking, making it difficult for users to maintain visibility in dim environments.
Innovation Solution
A method and system that utilize a processor to enhance the brightness of regions of interest in vehicle camera images by comparing their brightness levels to adjacent regions with higher brightness, maintaining the color chromaticity and adjusting the brightness ratio to match the brighter areas, thereby improving visibility without altering the color tone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If camera images are captured in dim environments during vehicle maneuvers, then the overall image is obtained, but regions of interest have reduced brightness making them difficult to see
Solution Approach 1:
The system applies different brightness enhancement treatments to different regions of the camera image. Specifically, it identifies a region of interest (such as a hitching area) and applies selective brightness enhancement only to that region while maintaining original brightness in other areas. This local quality approach resolves the contradiction by improving the illumination intensity of the specific region of interest without affecting the overall image, thereby maintaining visibility of critical areas in dim environments.
2Illumination intensity
If brightness of the first region is increased to match the second region, then visibility is improved, but color chromaticity may be altered
Solution Approach 1:
The system segments the brightness adjustment process from the color adjustment process. It separately handles brightness enhancement (increasing the brightness level of the first region to match the second region) while explicitly maintaining original color chromaticity. This segmentation allows independent optimization of brightness without compromising color accuracy, resolving the contradiction between improving illumination intensity and maintaining color fidelity.
Data Source
AI summary
In exemplary embodiments, methods and systems are provided for a digital flashlight for a vehicle. In another exemplary embodiment, a system is provided that includes a display of a vehicle; and a processor coupled to the display of the vehicle and a camera of the vehicle and configured to at least facilitate: obtaining a camera image frame via the camera of the vehicle; determining a first region of the camera image frame having a first brightness level; determining a second region of the camera image frame having a second brightness level that is greater than the first brightness level; and providing instructions to the display of the vehicle for displaying the first region with increased brightness that is based on the second brightness level.