Adaptive background updating video compression and transmission method and system

An adaptive background and video compression technology, which is applied to the components of TV systems, TVs, color TVs, etc., can solve the problems of high algorithm complexity, unfavorable readability, and different clarity, so as to increase redundancy The effect of saving transmission bandwidth resources and avoiding redundancy

Active Publication Date: 2013-09-18
SHANTOU UNIV
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Problems solved by technology

[0002] At present, in the existing technology, there are many methods of video compression, but generally speaking, they are all based on compression coding. Various compression methods have advantages and disadvantages. When the compression rate is greater, the quality of the video will be worse. Such as AVI encoding, MPEG-4 encoding, etc.
In recent years, with the development of compressed sensing, people have applied compressed sensing to video compression, but the computational complexity of the algorithm is relatively large, and sometimes the effect is not ideal
[0003] For

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  • Adaptive background updating video compression and transmission method and system
  • Adaptive background updating video compression and transmission method and system
  • Adaptive background updating video compression and transmission method and system

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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] Due to the different compression methods for the background and moving objects in the prior art for video image transmission, resulting in inconsistent video clarity after synthesis, and some need to combine the background image, the image of the changing moving area and its corresponding The coordinate parameters of the background image are compressed into a video file for transmission, which makes the compression transmission process complicated. The present invention proposes a video compression transmission method for adaptive background update modeling and without the coordinate parameters of moving objects.

[0037] The background frame image is obtained through the frame difference algorithm, and the steps are as follows:

[0038] (1) Put the first f...

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Abstract

An embodiment of the invention discloses an adaptive background updating video compression and transmission method. The method includes the steps: acquiring background frame images through an inter-frame difference algorithm and repeatedly acquiring new background frame images every N frames; performing difference calculation for the new background frame images and the background frame images, updating the background frame images by the aid of the new background frame images when a result is larger than a set threshold value, performing differential operation for a current video frame image and the background frame images, acquiring a foreground frame image comprising moving objects of the current frame image and transmitting the foreground frame image to a video terminal; and overlapping the background frame images and the foreground frame image by the video terminal to reconstruct an original video. The embodiment of the invention further discloses an adaptive background updating video compression and transmission system. By the aid of the method, coordinate parameters of the moving objects are omitted when the images are composited, the background frame images and the foreground frame image are directly and adaptively overlapped and reconstructed, information redundancy cannot be increased, and transmission bandwidth resources are saved.

Description

technical field [0001] The invention relates to a video compression method, in particular to a video compression transmission method and system for adaptive background update modeling. Background technique [0002] At present, in the existing technology, there are many methods of video compression, but generally speaking, they are all based on compression coding. Various compression methods have advantages and disadvantages. When the compression rate is greater, the quality of the video will be worse. Such as AVI encoding, MPEG-4 encoding and so on. In recent years, with the development of compressed sensing, people have applied compressed sensing to video compression, but the computational complexity of the algorithm is relatively large, and sometimes the effect is not ideal. [0003] For example, the Chinese patent with publication number CN101729902A discloses a video compression method, which adopts different compression methods for background and moving objects for vid...

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Application Information

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IPC IPC(8): H04N7/26H04N5/265
Inventor 庄哲民章聪友
Owner SHANTOU UNIV
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