Method of detecting moving target under static background

A moving target and static background technology, applied in the field of moving target detection under static background, can solve problems such as slow operation speed, unfavorable real-time realization, and target contour hole phenomenon, achieve high accuracy, meet real-time detection, connectivity Good results

Inactive Publication Date: 2017-09-12
南宁市正祥科技有限公司
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Problems solved by technology

The optical flow method is not conducive to real-time implementation due to its high computational complexity and requires special hardware support; the background difference method has a simple algorithm and is easy to implement, but usually has a slow calculation speed and i

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  • Method of detecting moving target under static background
  • Method of detecting moving target under static background
  • Method of detecting moving target under static background

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The technical problem to be solved by the present invention is to provide a moving target detection method in a static background.

The moving target detection method under static background includes the following steps:

S1: Use the optimized Canny edge detection algorithm to quickly and simply build a stable background edge model and background update method, and use the background edge difference method to obtain the background edge detection difference by performing the difference operation between the current frame edge detection result and the established background edge. As a result, the moving target edge is determined;

S2: Or with the result detected by the five-frame difference method to obtain a relatively complete outline of the moving target;

S3: Assimilate and fill the holes inside the contour of the moving target with a bidirectional template that combines horizontal and vertical directions, and then perform morphological processing and connectivity detection ...

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Abstract

The invention discloses a method of detecting a moving target under a static background, comprising the following steps: S1, using an optimized Canny edge detection algorithm to quickly and simply build a stable background edge model and a background update method, using a background edge difference method to perform differential operation on a current frame edge detection result and the built background edge to get a background edge detection difference result, and determining the edge of a moving target; S2, performing OR operation on the background edge detection difference result and a result of detection using a five-frame difference method to get a more complete contour of the moving target; and S3, performing assimilation filling on the holes inside the contour of the moving target by using a horizontal-vertical bidirectional template, and performing morphological processing and connectivity detection on the target to eliminate small isolated points and fill small gaps of the edge, in order to extract a complete and accurate moving target area.

Description

Moving Object Detection Method in Static Background technical field The invention specifically relates to a moving target detection method under a static background. Background technique In recent years, moving object detection in intelligent video surveillance is a research hotspot, and has broad application prospects in various fields. Commonly used moving target detection algorithms in static backgrounds are: inter-frame difference method, background difference method and optical flow method. The optical flow method is not conducive to real-time implementation due to its high computational complexity and requires special hardware support; the background difference method has a simple algorithm and is easy to implement, but usually has a slow calculation speed and is easily affected by light changes. difference; the inter-frame difference method is a commonly used method for target detection. Through the subtraction of adjacent frame images, the target is detected accor...

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Application Information

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IPC IPC(8): G06T7/215G06T7/13G06T7/194G06T7/136
CPCG06T7/13G06T7/136G06T7/194G06T7/215
Inventor 不公告发明人
Owner 南宁市正祥科技有限公司
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