Static background video adaptive compression method based on background subtraction

Abstract

The invention discloses a static background video adaptive compression method based on background subtraction, and aims to solve the problems of low static background video data compression ratio andhigh storage cost. According to the technical scheme, a static background video compression system composed of a background subtraction module, a target tracking module, a distribution planning moduleand a video compression synthesis module is constructed; a background subtraction module performs background subtraction on the video frame to obtain a foreground target external frame and a background picture of the video frame; the target tracking module tracks a foreground target external frame of the video frame to obtain a motion trail pipeline T of the foreground target; a distribution planning module performs label distribution on T to obtain a label set L of T in the compression result; and the video compression and synthesis module synthesizes and compresses the T, L and background picture set to obtain a video compression result picture set. By adopting the method, the extreme pressure of the static background video can be realized, the compression ratio is high, the informationloss rate is low, and the storage space is greatly reduced.

Description

technical field [0001] The invention relates to a video data compression method, in particular to a static background video compression method. Background technique [0002] With the development of digital media technology, the cost of video recording continues to drop, and various types of video recording instruments are deployed in various places to record people or things of interest. Among them, fixed-installed cameras are the most common. Some of these video recording instruments are in operation 24 hours a day, so a large number of static background videos are generated. Static background videos refer to video data captured by fixed cameras, such as surveillance videos. The collection of massive static background videos poses a great challenge to storage. In fact, many information in static background video is redundant. For example, the background information in consecutive video frames is highly similar. Saving this information takes up a lot of space and brings gre...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: Aiming at the static background video data collected by a fixed installation camera, the compression ratio is low, the storage cost is high, the browsing speed is extremely slow, and a large amount of manpower and material resources are consumed, and a static background video compression method is proposed , to extract effective information in the video, and to compress the hours-long video into a short video or dozens or hundreds of pictures that can be played within one minute while maintaining the original amount of information to achieve a static background video The ultimate compression can effectively improve the storage efficiency of static background video and reduce storage costs; at the same time, it can improve the browsing and reading efficiency of video content and reduce manpower and time costs

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