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Background modeling method for movement target detection

A moving target and background modeling technology, applied in the field of photoelectric image processing

Active Publication Date: 2014-04-02
中国航天科工集团第二研究院二〇七所
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is how to establish an accurate background model in a complex scene

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  • Background modeling method for movement target detection
  • Background modeling method for movement target detection
  • Background modeling method for movement target detection

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Embodiment Construction

[0057] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0058] In order to establish an accurate background model in a complex scene, the present invention proposes two background statistical modeling methods using inter-frame difference information——median method And the average method removes the influence of the foreground target, making the established background model more accurate. Based on the above two methods, the present invention provides a background modeling method for moving target detection, such as figure 1 As shown, the method includes:

[0059] Step S1: Read in consecutive M frames of images to ensure that the positions of the moving target in the first frame and the last frame of images do not overlap; where M is an integer greater than 10;

[0060] Ste...

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Abstract

The invention relates to a background modeling method for movement target detection, and belongs to the technical field of photoelectric image processing. In order to establish an accurate background model in a complex scene, the method provides background statistical modeling methods utilizing inter-frame differential information, namely a median method and an average method, based on the problems that a background model is difficult to obtain for the background differential method and the background differential method is easily affected by external interference, the influence of a foreground target is removed, so that the established background model is more accurate and has high anti-interference performance. The median method and the average method have simple principles and high anti-noise performance and are easy to implement. In addition, according to the method, adjacent frames of video images are differenced, and an appropriate threshold value is selected, so that an accurate background model is guaranteed.

Description

technical field [0001] The invention relates to the technical field of photoelectric image processing, in particular to a background modeling method for moving target detection. Background technique [0002] Background subtraction method is the most commonly used method in moving target detection. It can provide relatively complete feature data information, low complexity, and good real-time performance, but it is generally difficult to obtain a complete background image in advance in practical applications; moreover, the background difference method is sensitive to changes in dynamic scenes, such as light gradients, external environment, etc. Disturbance, noise and other disturbances are particularly sensitive. Therefore, how to establish an accurate background model according to the scene changes, and at the same time realize the real-time update of the background, is the basis for the subsequent analysis of the entire movement and behavior understanding. [0003] Combin...

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Application Information

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IPC IPC(8): G06T7/20
Inventor 朱敏朱振福柴智石春雷刘峰
Owner 中国航天科工集团第二研究院二〇七所
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