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Loitering detecting method and loitering detecting system in video monitoring

A technology of video monitoring and detection methods, applied in image data processing, instruments, calculations, etc., can solve problems such as inaccurate detection results, inability to record target trajectory data, inability to process moving targets, etc.

Active Publication Date: 2009-11-11
BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned method, when the moving target is temporarily stationary, the target will be placed in the background, and the trajectory data of the target cannot be recorded at this time. The result is not accurate enough

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  • Loitering detecting method and loitering detecting system in video monitoring
  • Loitering detecting method and loitering detecting system in video monitoring
  • Loitering detecting method and loitering detecting system in video monitoring

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Embodiment Construction

[0080] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0081] figure 1 It is an exemplary flowchart of a loitering detection method in video surveillance in an embodiment of the present invention. Such as figure 1 As shown, the process includes the following steps:

[0082] Step 101, performing position-based matching and tracking on the targets appearing in the video surveillance area, and recording the existence time or appearance times of the tracked targets.

[0083] In this step, video acquisition equipment can be used to collect video in the video surveillance area, and various commonly used motion detection methods in the prior art, such as optical flow method, inter-frame difference method, background difference method, etc., can be used to detect target, and obtain one or more binarized det...

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Abstract

The invention discloses a loitering detecting method in video monitoring, comprising the steps of: carrying out position-based matching pursuit on targets appearing in a video monitoring area, recording presence time or appearance times of the pursued targets, and taking the targets with the presence time or appearance times longer or more than a corresponding first set threshold as candidate loitering targets; carrying out histogram-based matching pursuit on the candidate loitering targets, recording presence time or appearance times of the pursued candidate loitering targets, and taking the target with the presence time or appearance times longer or more than a corresponding second set threshold as a loitering target. In addition, the invention also discloses a loitering detecting system in the video monitoring. The technical proposal disclosed by the invention can improve the accuracy of a detection result.

Description

technical field [0001] The invention relates to video detection technology, in particular to a wandering detection method and system in video surveillance. Background technique [0002] Loitering in video surveillance means that in the video surveillance system, one or more targets repeatedly move back and forth in a certain area. Loitering detection is an important function of video surveillance system and has important applications in many fields. For example, if a loitering object appears next to valuables (cars, etc.), it is likely to be a thief and thus needs to be detected. In addition, in some sensitive areas (such as military restricted areas) and unsafe places (such as under high-voltage lines, beside rivers without guardrails), no wandering targets are allowed to appear. [0003] The loitering detection in the prior art is mainly: firstly track multiple targets in the monitoring scene, record the track length of each moving target, and then simply judge whether t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
Inventor 王磊黄英
Owner BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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