Method for distinguishing monitoring camera abnormal situation through video signal

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

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 monitoring camera abnormal situation through video signal

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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 computer image vision analysis technology is used to compare the two frames of images with a set time interval in the surveillance video, that is, to compare the color value of each pixel at the corresponding position in the two frames of images. According to daily work experience, the time interval between two frames of images is preferably 1 second. Then, calculate the ratio of the number of pixels at corresponding positions with different color values ​​in the two frames of images to the total number of pixels, and when the difference bet...

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Abstract

The invention discloses a method for distinguishing a monitoring camera abnormal situation through a video signal. The method includes the following steps of (1) image comparison, wherein two frames of images in a monitoring video at a set time interval are compared through a computer image visual analysis technology and (2) abnormal situation determination, wherein when the difference of the two frames of images is larger than the set value, the abnormal situation is determined. The method for distinguishing the monitoring camera abnormal situation through the video signal aims to solve the problem that a camera is manually blocked or moved, or the signal is lost due to line fault, through a computer video analysis technology, abnormal behaviors are automatically distinguished, and a real-time alarm is given out, and the administrative staff is reminded to deal with the abnormal behaviors timely. By means of the method, the dependence on personnel of the video monitoring work can be lowered, the situation that the abnormal behaviors are not found out timely due to personnel fatigue is avoided, and thus the 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 judging abnormal conditions of a surveillance camera by using video signals. 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 problems, the present invention provides a method for judging the abnormality of the monitoring camera by using the video signal, and the method can detect abnormalities such as camera movement, occlusion, and signal interruption in time. Contents of the invention [0005] In view ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G08B13/196
Inventor 陈拥权李建中郑荣稳
Owner HEFEI VRVIEW INFORMATION TECH
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