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Video image motion detection method and apparatus

A video image and image technology, which is applied in the field of video image moving target detection, can solve the problems of high computational complexity and difficulty in meeting the real-time requirements of actual video surveillance images, and achieve the effect of avoiding interference and stabilizing the effect

Active Publication Date: 2018-04-03
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

Although the existing technology 2 has a good effect on the background modeling of moving objects, the algorithm based on Markov random field has high computational complexity, and it is difficult to meet the real-time requirements for actual video surveillance images

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  • Video image motion detection method and apparatus
  • Video image motion detection method and apparatus
  • Video image motion detection method and apparatus

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Embodiment Construction

[0019] In image and adaptation processing, the so-called video is actually a series of images with time sequence characteristics, which is also a sequence of images. For common surveillance video, since the camera is relatively stable, there will be a relatively stable scene in the sequence image that does not change, that is, the background. Objects that change in the background, that is, moving targets, need to be detected because they have valuable information, which is the so-called foreground information. The background and the foreground are actually images, but the background is generally unchanged, and the foreground, as a moving target, changes in real time.

[0020] figure 1 It is a schematic diagram of the video image moving target detection based on the two-layer Gaussian mixture model proposed by the present invention. After the input video image is processed 101 by the two-layer Gaussian mixture model, the video background is obtained, and then the background el...

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Abstract

The invention provides a video image target detection method. The method comprises the steps of performing background modeling on an input video image through two layers of Gaussian mixture models toobtain a video image background of the input video image, wherein an input of the second Gaussian mixture model is a result of the first Gaussian mixture model after modeling; performing frame-by-frame difference processing on the video image background and the input video image to obtain a video image foreground of the video image; and performing otsu threshold-based binarization processing, morphological erosion and dilation operation-based connected region removal and pixel value-based small region removal on the video image foreground in sequence to form a foreground target of the input video image. In addition, the invention provides a video image target detection apparatus and system.

Description

technical field [0001] The invention relates to a video image moving target detection method and device, belonging to the field of artificial intelligence. Background technique [0002] With the continuous acceleration of the pace of urbanization in my country, urban security management has become a problem that cannot be ignored. Intelligent video surveillance systems are more and more widely used in urban security management, and the scale is also expanding. As one of the core technologies of video surveillance, the detection technology of moving objects in video images has also received special attention. How to further improve the stability and accuracy of moving object detection in practice has become the focus of research by a large number of experts and scholars at home and abroad. Traditional moving object detection methods include inter-frame difference, optical flow method, mixed Gaussian model, etc. Among them, as a classic adaptive background modeling method, the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/194G06T7/155G06T7/254
CPCG06T7/11G06T7/136G06T7/155G06T7/194G06T7/254G06T2207/10016G06T2207/30196
Inventor 安振宇孙亭李毅叶云丁杰龚少麟
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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