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Target monitoring method and system based on multiple cameras

A target monitoring and multi-camera technology, which is applied in closed-circuit television systems, image communication, image enhancement, etc., can solve difficult problems such as occlusion of complex scenes, tracking of non-moving objects, etc., and achieve data storage efficiency improvement, improve efficiency, and improve storage efficiency effect

Inactive Publication Date: 2020-07-10
北京大学(天津滨海)新一代信息技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if there is a single-camera-based target tracking system in the prior art, which can liberate security personnel from the complicated work of checking the sight, it usually cannot continuously track moving targets due to the limitation of the single-camera field of view. At the same time, it is difficult to solve the occlusion problem in complex scenes

Method used

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  • Target monitoring method and system based on multiple cameras
  • Target monitoring method and system based on multiple cameras
  • Target monitoring method and system based on multiple cameras

Examples

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Embodiment 1

[0048] An embodiment of the present disclosure provides a multi-camera-based target monitoring method, figure 1 It is a schematic flowchart of a multi-camera-based target monitoring method according to an exemplary embodiment.

[0049] Such as figure 1 As shown, a multi-camera-based target monitoring method includes:

[0050] Step S101, acquiring target information collected by each camera;

[0051] The embodiment of the present disclosure provides a multi-camera based target monitoring method. When a specific target needs to be queried, information of the specific target is input through the client, and the query is performed according to the acquired target information input by the client.

[0052] In some exemplary scenarios, if a girl with long hair and a red coat needs to be queried, attribute characteristics such as "girl, long hair, red coat" are input into the client for target query. The client can be a mobile phone such as a personal computer or a mobile phone. te...

Embodiment 2

[0080] An embodiment of the present disclosure provides a multi-camera-based target monitoring system, figure 2 is a schematic structural diagram of a multi-camera-based target monitoring system shown according to an exemplary embodiment;

[0081] Such as figure 2 As shown, a multi-camera-based target monitoring system includes:

[0082] 201. A camera, configured to acquire image information and send the image information to a streaming media server;

[0083] In some exemplary scenarios, the cameras are two or more cameras, and the cameras include a bolt camera and a dome camera. The machine camera is suitable for the monitoring of target moving scenes, such as road monitoring. In the disclosed embodiment of the present invention, the entire monitoring screen is composed of multiple bolts and ball cameras, and the multiple bolts and ball cameras are linked in real time to send the acquired image information to the streaming media server.

[0084] 202. A streaming media s...

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Abstract

The invention discloses a target monitoring method based on multiple cameras. The target monitoring method comprises the following steps: acquiring target information acquired by each camera; when thetarget enters the multi-view overlapping area, the first camera sending handover prompt information; when the handover prompt information is received, obtaining coordinate information of the target through a homography matrix converted between views; according to the coordinate information of the target, judging whether the target is within the visual field range of a second camera or not; and when the target is in the visual field range of the second camera, the first camera stopping tracking the target, and the second camera tracking the target. Through the method, specific target monitoring based on multiple cameras can be realized, and cross-camera tracking of a specific target is realized.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to a multi-camera-based target monitoring method and system. Background technique [0002] Video surveillance system has a wide range of applications in home security, community security and national defense security, which involves all aspects of people's daily life, such as: subway, crowd control in tourist attractions, access control in places with high security levels, etc. [0003] In the existing technology, the monitoring system only records all the events in the monitoring area without omission, and lacks information processing. If a target needs to be located or tracked, the security staff needs to manually determine the target and continue to monitor the target. For observation, the target will appear in different cameras, security personnel need to retrieve a large amount of video information, and their concentration and work efficiency will be significantly redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G06T7/292
CPCG06T2207/10016G06T7/292H04N7/181
Inventor 钱方正任立鹏汪涛贾惠柱杨长水齐峰
Owner 北京大学(天津滨海)新一代信息技术研究院
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