Camera motion detecting method based on video monitoring

A motion detection and video surveillance technology, applied in the field of computer vision, can solve problems affecting detection accuracy, and achieve high accuracy and robustness.

Inactive Publication Date: 2013-06-12
PCI TECH GRP CO LTD
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  • Application Information

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Problems solved by technology

[0006] The present invention provides a camera movement detection method based on video surveillance, which can realize camera movement detection in complex scenes, and solves the problem of interference from various external factors (such as illumination changes, dynamic Background elements, etc.), which seriously affect the detection accuracy

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  • Camera motion detecting method based on video monitoring

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Embodiment Construction

[0010] The present invention designs a camera movement detection method based on video monitoring, which can realize camera movement detection in complex scenes, has high accuracy and robustness, and effectively solves various problems existing in complex scenes. The interference of external factors (such as lighting changes, dynamic background elements, etc.) causes the problem of false positives.

[0011] As shown in the attached figure, the flow chart of the method includes collecting video frames, using a mixed Gaussian model for background modeling; and using a random sampling method to initialize the background, and then performing a difference between the acquired current frame and the background frame, and counting pixels less than 20 number, when the number of acquired pixels is greater than 2, the point is considered to be a background point, otherwise it belongs to the foreground point; finally, according to the number of pixels in the calculated foreground frame, it...

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Abstract

The invention discloses a camera motion detecting method based on video monitoring. The method comprises the steps of collecting video frames, conducting background building through the Gaussian mixture model, sampling random points around every pixel point through a random sampling method, initializing the background, differentiating the obtained present frame with a background frame, conducting statistics of the number of the pixel points smaller than 20, regarding the point as a background point when the number of the pixel points is bigger than 2, regarding the point as a foreground point when the number of the pixel points is not bigger than 2, and judging whether the camera is moved through a comparison with a certain fixed threshold value according to the number of the pixel points of a foreground frame. Camera motion detecting is achieved.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a camera movement detection method based on video surveillance. Background technique [0002] With the development of science and technology and the continuous enhancement of people's awareness of safety precautions, a new generation of video surveillance systems with intelligent analysis functions have been widely used in various aspects of society, such as transportation, military, airports, banks, video conferencing, business, industry and more. [0003] Intelligent video surveillance refers to the use of computer vision analysis methods to automatically analyze video sequences without human intervention, to achieve moving target detection, classification, identification, tracking, etc., and on this basis, through pre-set rules Analyze the target's behavior to provide reference for further measures (such as automatic alarm when the object enters the fortified area). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20H04N7/18
Inventor 毛亮蒋天耀赵刚
Owner PCI TECH GRP CO LTD
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