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Motion tracking method and device

A motion tracking, moving target technology, applied in the field of video processing, can solve the problems of unpredictability, lost tracking target, wrong tracking, etc.

Inactive Publication Date: 2010-03-03
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the irregularity and unpredictability of the tracking target movement, the elliptical area of ​​the target is increased or decreased according to the preset multiple, which will inevitably lead to some wrong tracking and loss of tracking targets.

Method used

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  • Motion tracking method and device

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Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] figure 1 Motion tracking flow chart provided for the present invention, such as figure 1 As shown, the specific steps are as follows:

[0059] Step 101: Perform motion detection on the current frame to obtain motion regions.

[0060] Step 102: For each moving object to be tracked, according to the principle that the smaller the champer distance, the smaller the weight, assign weights to each pixel of the moving object according to the champer distance of each pixel of the moving object in the previous frame.

[0061] Step 103: According to the principle that the smaller the champer distance, the smaller the weight, for each moving region in the current frame, assign a weight to each pixel in the moving region according to the champer distance of each pixel in the moving region.

[0062] Step 104: According to the weights ass...

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Abstract

The invention discloses a motion tracking method and a device. The method includes the following steps: A. conducting motion detection on a present frame to obtain all motion areas; B. as for a motiontarget to be tracked, allocating weight value to all pixel points of the motion target according to the principle that the smaller champer distance is, the smaller the weight value is, and accordingto the champer distance of all pixel points of the motion target of the prior frame; C. according to the principle that the smaller champer distance is, the smaller the weight value is, and accordingto the champer distance of all pixel points of all motion areas of the present frame, allocating weight value to all pixel points in the motion area; and D. according to the weight value allocated insteps B and C, searching a motion area with the color most similar to that of the motion target in all the motion areas of the present frame, wherein the motion area is rightly the tracking object ofthe motion target in the present frame. The method and the device improve tracking reliability.

Description

technical field [0001] The invention relates to the technical field of video processing, in particular to a motion tracking method and device. Background technique [0002] Object tracking has a wide range of applications in human-computer interaction, automatic surveillance, video retrieval, traffic detection, and vehicle navigation. The task of target tracking is to determine the geometric state of the target in the video stream, including position, shape, size and direction of motion. Due to the irregular motion of the tracked target and the interference of the complex background, the target tracking algorithm faces many challenges, and it is one of the research hotspots in the field of video processing technology. [0003] The target tracking methods commonly used at present generally adopt the method of detection or manual calibration. The initial position of the tracking target area is determined in the first frame of the video sequence. The most matching area of ​​t...

Claims

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Application Information

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IPC IPC(8): G06T7/20
Inventor 卢晓鹏
Owner VIMICRO CORP
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