Real-time video image stabilizing method based on integral image characteristic block matching

A technology of real-time video and integral graph, applied in image communication, image enhancement, image data processing and other directions, can solve the problems of filtering effect, inconsistent with uniform motion law, slow speed, etc., to improve robustness and enhance anti-illumination. and image noise ability, the effect of fast calculation speed
CN101951464AInactive Publication Date: 2011-01-19SHANGHAI WENXIANG INFORMATION TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI WENXIANG INFORMATION TECH
Publication Date
2011-01-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a real-time video image stabilizing method based on integral image characteristic block matching, which enhances the capability of preventing illumination and image noise shooting equipment, improves the robustness of global motion parameter estimation and further improves the video image stabilizing capability of the shooting equipment in a complex environment. The method comprises the following steps of: 1. carrying out block division on the current frame; 2. describing each block content by utilizing integral image characteristics; 3. carrying out block matching motion estimation on each block by using an integral image characteristic error minimum as a matching criterion; 4. calculating a motion vector of the block to obtain a global motion parameter of the current frame relative to the previous frame; 5. carrying out motion filter processing on the global motion parameter; and 6. carrying out motion compensation according to a filter result.
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Description

technical field

[0001] The invention relates to a real-time video stabilization system that can be widely used in consumer electronics products such as mobile phones, digital cameras, and video cameras, and can also be widely used in camera and monitoring systems equipped with aircraft, ships, satellites, and missiles. method, specifically a real-time video image stabilization method based on feature block matching of integral graphs. Background technique

[0002] The video sequence shot by the camera during the movement not only includes the active part of the camera, but also introduces irregular random motion. The existence of this random motion will cause the video to shake and blur, which seriously affects human vision. Feeling, the purpose of video image stabilization is to eliminate or weaken the destructive effects of random motion on video images. The realization of video image stabilization includes three modules: motion estimation, motion filtering and invalid ar...

Claims

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