Online dynamic video compression method

A video condensing and dynamic technology, used in CCTV systems, image data processing, instruments, etc.

Active Publication Date: 2014-10-08
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For surveillance scenes with fixed cameras, unlike other video materials that have lens divisions, if the tradition

Method used

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0071] The invention is mainly divided into three modules:

[0072] The first is the moving object detection module. The main function of this module is to detect the moving foreground, that is, to perform a classification operation on each pixel of each frame image: it belongs to the foreground or the background. Based on the real-time consideration of the video enrichment system, here we choose the improved Vibe foreground detection algorithm, which is a new method combining the basic Vibe background modeling algorithm and the multi-connected domain fusion algorithm.

[0073] The idea of ​​the basic Vibe background modeling algorithm is to store a sample set for each pixel. The sample value in the sample set is the past pixel value of the pixel point and the pixel value of its neighbors, and then each new pixel value and sample The set is compared t...

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Abstract

The invention discloses an online dynamic video compression method. According to the method, the traditional video abstraction technology is improved a lot and is inherited and developed. By the adoption of the method, target bodies and events which people are interested in can be automatically extracted from a large number of monitoring videos; the information such as positions and velocities of the target bodies in each frame of the monitoring videos is obtained by tracking the target bodies; the target bodies appearing in different time periods are extracted respectively and temporarily stored in a moving target list; after an appropriate background is selected, the stored target bodies are spliced into the same background one by one. Consequently, the visual effect that the target bodies appearing in different time periods are simultaneously displayed in the same time period is achieved, and the purpose of dynamic video compression is achieved.

Description

technical field [0001] The invention relates to an online dynamic video concentration method. Background technique [0002] With the vigorous development of today's safe cities and smart cities, more and more surveillance cameras have been installed, such as road traffic, residential areas, governments, banks and schools, etc., but what follows is an increasing mass of surveillance videos. When people query these videos, they only use fast forward and fast rewind to browse the surveillance video to determine the time when the incident occurred. This traditional browsing method is time-consuming and often misses important video information. Obviously, it is far from being able to meet people's needs for accessing and retrieving surveillance video information. Therefore, intelligent video enrichment technology came into being. [0003] In recent years, the traditional video summarization technology has been greatly developed, and many universities and companies at home and a...

Claims

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Application Information

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IPC IPC(8): H04N7/18G06T7/20
Inventor 曹建荣徐阳李振宇孙雪梅
Owner SHANDONG JIANZHU UNIV
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