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Static state background video compression algorithm based on motion perception

A technology of static background and motion perception, applied in digital video signal modification, electrical components, image communication, etc., can solve problems such as jitter and content loss

Inactive Publication Date: 2016-09-21
HEFEI UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a static background video compression algorithm based on motion perception, to solve the problem of main content loss and jitter phenomenon in the static background video compression of the prior art,

Method used

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  • Static state background video compression algorithm based on motion perception
  • Static state background video compression algorithm based on motion perception
  • Static state background video compression algorithm based on motion perception

Examples

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Embodiment Construction

[0073] see figure 1 Shown, the static background video compression algorithm based on motion perception includes the following steps:

[0074] (1), select static background video, input video frame, import each video frame and carry out line cutting to it;

[0075] (2), carry out edge detection processing to video frame, obtain the gradient map of this video frame, calculation process is as follows:

[0076] The video frame is denoted as I, and its partial derivative is calculated for the horizontal direction and vertical direction of I respectively, and the gradient map of the video frame is obtained after the linear accumulation of the two, which reflects the structural information of the video frame, as shown in formula (1) :

[0077] e 1 ( I ( x , y ) ) = | ∂ ...

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Abstract

The invention discloses a static background video compression method based on motion perception. First, edge gradient detection and salient area detection are respectively performed on video streams to obtain edge information and salient information, and then background modeling is performed, and the vibe algorithm is used to detect Motion information, according to the motion information, calculate the space-time difference between the current frame of the moving target and the cropping line of the previous video frame, so that the cropped video maintains the continuity of space and time between the front and rear frames; according to the energy map, calculate the edge change The cost function avoids edge distortion, and the dynamic programming algorithm is used to calculate the clipping function; define an optimization function for clipping order, and select the clipping lines to be removed in the horizontal and vertical directions. The present invention utilizes edge detection, saliency detection, target detection and temporal-spatial correlation to apply the image line cropping method to video compression.

Description

technical field [0001] The invention relates to the field of video compression algorithms, in particular to a static background video compression algorithm based on motion perception. Background technique [0002] With the rapid development of the Internet, multimedia data is also increasing exponentially. We have entered the information age, and the information resources that people obtain are unmatched by any previous era. These information resources not only include simple text information, but also include massive video materials. Compared with text information, these video information are more intuitive and vivid, not only complement each other with text information, but also provide an independent carrier of information. [0003] There are many video monitoring systems, such as remote monitoring in transportation, water conservancy, oil fields, banks, telecommunications and other fields; monitoring of key areas such as real estate, kindergartens, buildings, factories,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/85
CPCH04N19/85
Inventor 邵堃霍星方帅安宁刘进军姚小慧乔子木刘超
Owner HEFEI UNIV OF TECH
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