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Online target tracking method and system based on multiple cameras

A target tracking, multi-camera technology, applied in the field of video analysis, can solve the problems that the online multi-camera target tracking system cannot operate effectively, and the moving target trajectory acquisition cannot meet the requirements of the real-time system.

Active Publication Date: 2014-10-29
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing multi-camera target tracking technology fails to achieve good results in real-time and synergy, so that the acquisition of the moving target trajectory cannot meet the requirements of the real-time system, resulting in online multi-camera tracking. In order to solve the problem that the target tracking system cannot operate effectively, a multi-camera-based online target tracking method and system with good real-time and synergy are provided

Method used

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  • Online target tracking method and system based on multiple cameras

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Embodiment Construction

[0046] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0047] like figure 1 Shown, be a kind of online target tracking method based on multi-camera described in the present invention, specifically comprise the following steps:

[0048] Step 1: Obtain the image information and camera position information transmitted by all cameras, use the method of feature point matching to overlap area scenes, establish scene associations between different camera perspectives, and realize the synchronization of multiple camera information in overlapping areas;

[0049] Step 2: Generate a neighbor map measured by coordinates by recording the camera's setting position and overlapping area information, so that each camera has at least one neighbor camera;

[0050] Step 3: Each camera est...

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Abstract

The invention relates to an online target tracking method and an online target tracking system based on multiple cameras, solves a synergy problem and a timeliness problem among the multiple cameras by combining a preset calibration synchronization scheme with a self-learning tracking method, and provides the corresponding method. The preset calibration synchronization scheme uses a target projection matrix calculation method matched with feature points, and synchronizes shared information of the multiple cameras of an overlapping region. The self-learning tracking method records a presentation model of a monitored target, performs detection tracking by synchronizing a center server to the neighbor camera, and thereby achieves conductive information synchronization effects.

Description

technical field [0001] The invention relates to an online target tracking method and system based on multiple cameras, belonging to the technical field of video analysis. Background technique [0002] With the application of video surveillance systems and the development of intelligent analysis technology, surveillance cameras and security video data are increasing day by day, making public security protection technology based on video analysis widely concerned by the society and the public, especially the video analysis method for multi-camera networks It is an urgent need in the field of public security. Therefore, through the multi-camera-based target tracking method, trajectory clues for auxiliary event recognition and analysis can be generated, providing effective event clues for analyzing specific targets such as people, vehicles, objects, and regional security status, and improving the accuracy of event mining and recognition . [0003] Multi-camera target tracking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20H04N7/18H04N5/232
Inventor 葛仕明文辉杨睿陈水仙孙利民
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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