Method for distinguishing abnormal conditions of monitoring camera on basis of background comparison

A technology for monitoring cameras and abnormal situations, applied in the field of video processing, can solve problems such as visual fatigue, long time, and inability to be detected by monitoring personnel in time, so as to improve the quality of development and reduce human dependence.

Inactive Publication Date: 2015-04-22
HEFEI VRVIEW INFORMATION TECH
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AI Technical Summary

Problems solved by technology

[0002] When watching surveillance video manually, it often causes visual fatigue due to too long time. At this time, if the camera is artificially blocked or moved, or the signal is lost due to line failure, it is often not discovered by the surveillance personnel in time, thus affecting the video. Monitor the quality of work carried out
[0003] As of now, there is no public information to provide effective technical solutions for the above problems

Method used

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  • Method for distinguishing abnormal conditions of monitoring camera on basis of background comparison

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only for explaining the present invention, and are not intended to limit the present invention.

[0017] Such as figure 1 As shown, the background image in the field of view of the surveillance video is first extracted. The background image can be extracted when there is no active target in the field of view, or can be extracted after separating and eliminating the active target by using computer image vision analysis technology. An active object refers to the appearance, disappearance, or movement of an object. Then compare each frame image in the surveillance video with the background image, that is, compare the color value of each pixel in each frame image and the corres...

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Abstract

The invention discloses a method for distinguishing the abnormal conditions of a monitoring camera on the basis of background comparison. The method comprises the following steps of (1) conducting background extraction, wherein a background image in a monitoring video scene is extracted; (2) conducting comparison and analysis, wherein each frame of picture in a monitoring video is compared with the background image through a computer image visual analysis technology; (3) conducting abnormal condition judgment, wherein when the difference value between one frame of image and the background image is larger than a set value, it is judged that abnormal conditions exist. The method for distinguishing the abnormal conditions of the monitoring camera on the basis of background comparison has the advantages that the dependence of video monitoring work on the personnel can be reduced, the situation that abnormal conditions cannot be found in time due to the fact that the personnel feel tired, and therefore the launching quality of the video monitoring work is improved.

Description

technical field [0001] The invention relates to the technical field of video processing, in particular to a method for distinguishing abnormal situations of surveillance cameras based on background comparison. Background technique [0002] When watching surveillance video manually, it often causes visual fatigue due to too long time. At this time, if the camera is artificially blocked or moved, or the signal is lost due to line failure, it is often not discovered by the surveillance personnel in time, thus affecting the video. Monitor the quality of work carried out. [0003] So far, there is no public information to provide effective technical solutions for the above problems. [0004] In view of the above-mentioned problems, the present invention provides a method for discriminating abnormalities of surveillance cameras based on background comparison, which can detect abnormalities such as camera movement, occlusion, and signal interruption in time. . Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00H04N7/18
CPCG06T7/0002G06T2207/10016G06T2207/30232H04N7/18
Inventor 陈拥权李建中郑荣稳
Owner HEFEI VRVIEW INFORMATION TECH
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