Target tracking method and device in video monitoring

A target tracking and video surveillance technology, which is applied to measurement devices, television, character and pattern recognition, etc., can solve the problem of low accuracy of multi-target tracking, and achieve the effect of improving accuracy.

Active Publication Date: 2013-10-23
ZMODO TECH SHENZHEN CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since video target tracking is quite different from radar target tracking and sonar target tracking, it will be difficult to apply these existing methods in the field

Method used

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  • Target tracking method and device in video monitoring
  • Target tracking method and device in video monitoring
  • Target tracking method and device in video monitoring

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Experimental program
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Embodiment Construction

[0061] Such as figure 1 Shown, in one embodiment, a kind of target tracking method in video monitoring, comprises the steps:

[0062]Step S110, acquiring the target in the previous frame to obtain the corresponding state value.

[0063] In this embodiment, the target in the previous frame refers to the target in the previous frame of video, and the state value corresponding to the target is used to identify information such as the position, size and color of the target in the previous frame of video.

[0064] In one embodiment, before the above step S110, the method further includes:

[0065] Non-linear filtering is performed on the target in the previous frame to obtain the position state value, size state value and histogram state value corresponding to the target.

[0066] In this embodiment, in order to obtain the state value corresponding to the object in the previous frame, it is necessary to perform state prediction on the object in the previous frame. Specifically, ...

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Abstract

The invention provides a target tracking method and a target tracking device in video monitoring. The method comprises the steps that the state value corresponding to a target in a previous frame is obtained; a current frame is subjected to target detection, and the observed value corresponding to the target observing in the current frame is obtained; a cost matrix is built according to the state value and the observing value, in addition, an EMD (earth mover's distance) algorithm is applied for solving the cost matrix, and an allocation matrix is obtained; and the target in the current frame is recognized according to the allocation matrix. The device comprises an obtaining module, a target detecting module, an operation module and a recognition module, wherein the obtaining module is used for obtaining the state value corresponding to the target in the previous frame, the target detecting module is used for carrying out the target detection on the current frame to obtain the observed value corresponding to the target observing in the current frame, the operation module is used for building the cost matrix according to the state value and the observing valve and applying the EMD algorithm for solving the cost matrix to obtain the allocation matrix, and the recognition module is used for recognizing the target in the current frame according to the allocation matrix. When the target tracking method and the target tracking device are adopted, the accuracy can be improved.

Description

technical field [0001] The invention relates to intelligent video monitoring technology, in particular to a method and device for tracking objects in video monitoring. Background technique [0002] In intelligent video surveillance, multi-target tracking will be a key link, and multi-target tracking for dense targets will become a challenging problem. The core of multi-target tracking lies in the data association problem. Traditional methods for multi-target tracking include local nearest neighbor association, global nearest neighbor association, multi-hypothesis tracking and joint probability filtering. Most of these methods are based on radar It is borrowed from the field of target tracking and the field of sonar target tracking. [0003] However, since video target tracking is quite different from radar target tracking and sonar target tracking, it will be difficult to apply these existing methods in the field of radar target tracking or sonar target tracking to the real...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06V10/56
CPCG01S3/7865G06T2207/30232G06T7/215G06V20/52G06V10/255G06V10/56H04N7/183
Inventor 雷明
Owner ZMODO TECH SHENZHEN CORP
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