A 360-degree look-around-based color uniformity function design method
By employing the Wallis color balancing method and histogram enhancement method in the in-vehicle 360-degree surround view system, the problem of inconsistent brightness and color among the four video frames was solved, achieving smooth color transitions in the surround view image and improving the stitching effect.
CN117132512BActive Publication Date: 2026-07-21BEIJING MECHANICAL EQUIP INST
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING MECHANICAL EQUIP INST
- Filing Date
- 2023-07-19
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
In existing in-vehicle 360-degree surround view systems, the brightness and color of the four video frames are inconsistent due to scene and lighting factors, resulting in color jumps and strong transition abruptness in the final stitched surround view image.
Method used
The Wallis color balancing method is used as a reference image to perform color balancing on multiple images to be stitched together, and the histogram enhancement method is combined with contrast enhancement to generate a 360-degree panoramic image.
Benefits of technology
The problem of inconsistent brightness and color among the four video frames has been solved, resulting in a smoother color transition in the panoramic image and improved stitching effect.
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Figure CN117132512B_ABST
Abstract
The present disclosure relates to a 360-degree surround view-based color uniformization function design method and device, electronic equipment and storage medium. The method comprises: receiving a plurality of to-be-stitched images collected by a video collection device based on a vehicle, selecting a reference image from the plurality of to-be-stitched images based on a preset reference image selection method; taking the reference image as a reference image, performing color uniformization processing on the remaining to-be-stitched images based on the Wallis color uniformization method; performing contrast enhancement processing on the remaining to-be-stitched images based on a histogram enhancement method; and stitching the reference image and the remaining to-be-stitched images to generate a 360-degree surround view image. The present disclosure solves the problem that in a 360-degree surround view system, four cameras for real-time video collection are affected by factors such as scenes and light, the brightness and color of the four video frames collected are inconsistent, and the final stitched surround view image has color jumps and strong transition hesitation.
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