Image Stabilization Using Multi-Camera Frame Segmentation
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Solution Overview
Problem
Video capture techniques face challenges in maintaining a wide field of view while effectively stabilizing images against camera movement, as existing image stabilization methods often reduce the field of view to compensate for motion, leading to a trade-off between view angle and detail.
Innovation Solution
A method that combines source frames from both wide-angle and narrow-angle cameras to identify central and peripheral portions, using motion compensation techniques to generate stabilized video frames that restore the field of view by integrating the central portion from the narrow-angle camera with the peripheral portion from the wide-angle camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If image stabilization is applied using a narrow-angle camera, then image stability is improved, but the field of view is reduced
Solution Approach 1:
The video frame is segmented into a central region and a peripheral region. The central region is derived from the narrow-angle camera to ensure stability and detail, while the peripheral region is derived from the wide-angle camera to maintain a wide field of view. This segmentation allows each region to be optimized for its specific purpose without compromising the overall image quality.
Solution Approach 2:
The patent merges the central region from the narrow-angle camera with the peripheral region from the wide-angle camera to create a composite stabilized video frame. This combining approach integrates the advantages of both cameras: the stability and detail of the narrow-angle view in the center, and the wide field of view of the wide-angle camera at the periphery.
2Area of moving object
If a wide-angle camera is used to maintain field of view, then view angle is improved, but image stability deteriorates
Solution Approach 1:
Different regions of the video frame are assigned different quality characteristics. The central region, where detail and stability are most important, is sourced from the narrow-angle camera. The peripheral region, where maintaining field of view is prioritized, is sourced from the wide-angle camera. This local quality approach ensures that each region has the optimal characteristics for its intended purpose.
3Measurement precision
If only a narrow-angle camera is used for stabilization, then image detail is improved, but the angle of view is reduced
Solution Approach 1:
The patent adds a spatial dimension to the image stabilization approach by utilizing multiple camera angles simultaneously. Instead of relying on a single narrow-angle view, the system incorporates both narrow-angle and wide-angle perspectives, combining them in a composite frame that provides both detail and wide coverage.
Data Source
AI summary
A technique for generating video is provided. The technique includes obtaining a plurality of source frames with a wide-angle camera and a narrow-angle camera; identifying a plurality of central portions and a plurality of peripheral portions of the plurality of source frames based on image stabilization; and combining the plurality of central portions and the plurality of peripheral portions to generate a plurality of resulting frames of an output video.