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Video monitoring method, system and device based on virtual wall

A technology of video surveillance and virtual wall, applied in the field of video surveillance based on virtual wall, can solve problems such as intruder evasion, and achieve the effect of improving accuracy

Active Publication Date: 2012-07-18
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a video monitoring method, system and device based on a virtual wall to solve the problem that existing video monitoring protects line segments and is easily avoided by intruders

Method used

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  • Video monitoring method, system and device based on virtual wall
  • Video monitoring method, system and device based on virtual wall
  • Video monitoring method, system and device based on virtual wall

Examples

Experimental program
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no. 1 example

[0029] see figure 1 , which is the flow chart of the first embodiment of the video monitoring method based on the virtual wall of the present application:

[0030] Step 101: Set a cross-section of any shape in the surveillance video as a virtual wall according to the pre-collected video image, and set a target feature for triggering an alarm.

[0031] Wherein, the feature of the target that triggers the alarm includes at least one of the following features: size of the target, shape of the target, color of the target, type of the target, and speed of the target.

[0032] Step 102: Collect video images in the surveillance video.

[0033] Wherein, the video images in the surveillance video may be collected by a black-and-white or color camera, or may be collected by a thermal imaging camera, or may be collected by an infrared camera.

[0034] Step 103: Perform content analysis on the collected video images to obtain feature information and motion track information of moving ob...

no. 2 example

[0036] see figure 2 , which is the flow chart of the second embodiment of the video monitoring method based on the virtual wall of the present application:

[0037] Step 201: According to the pre-collected video image, set a cross-section of any shape in the surveillance video as a virtual wall, and set a target feature for triggering an alarm.

[0038] Among them, the virtual wall can usually be configured through the image interface in the remote configuration center. After some video images are pre-collected, the user can draw a polygon by clicking the mouse on any position of the surveillance video according to these pre-collected video images, and Set this polygon as a virtual wall for surveillance video. Preferably, the polygon is a parallelogram.

[0039] The target feature that triggers the alarm includes at least one of the following: size of the target, shape of the target, color of the target, type of the target, and speed of the target. For example, the dimensi...

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Abstract

The embodiment of the invention discloses video monitoring method, system and device based on a virtual wall. A section with any shape is used as the virtual wall in a monitoring video according to a pre-acquired video image, and target characteristics used for triggering the warning are set. The method comprises the steps of: acquiring a video image in the monitoring video; analyzing the content of the video image, obtaining characteristic information and motion track information of a moving target in the video image; and when the characteristic information of the moving target accords with the target characteristics, judging that the moving target passes through the virtual wall according to the motion track information of the moving target. The video monitoring is carried out by applying the embodiment of the invention, because the monitoring range of the set virtual wall is far more than that of the line section in a video trip, the accuracy of the video monitoring is improved, and an intruder is not easy to evade.

Description

technical field [0001] The present application relates to the technical field of video surveillance, in particular to a video surveillance method, system and device based on a virtual wall. Background technique [0002] As an emerging technology, video content analysis technology has been applied in the field of video surveillance. Video content analysis technology consists of various computer video analysis methods, including background modeling methods, object tracking methods, object motion prediction methods, object segmentation methods, object classification methods, object feature detection methods, etc. Video content analysis technology can be combined by various computer video analysis methods under different application frameworks. The purpose of video content analysis technology is to obtain video content information from video images. Video content information includes behavior information of moving objects in video. And the characteristic information of the targ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B13/196H04N7/18G06T7/20
Inventor 浦世亮胡扬忠邬伟琪
Owner HANGZHOU HIKVISION DIGITAL TECH
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