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Automatic video-target detecting and tracking method based on motion information and sparse projection

A technology of sparse projection and motion information, applied in image data processing, instrumentation, computing, etc., can solve problems such as poor tracking accuracy

Active Publication Date: 2014-03-05
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of poor tracking accuracy of the existing automatic target detection and positioning tracking methods based on forward and backward motion history images, the present invention provides a video target automatic detection and tracking method based on motion information and sparse projection

Method used

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  • Automatic video-target detecting and tracking method based on motion information and sparse projection
  • Automatic video-target detecting and tracking method based on motion information and sparse projection
  • Automatic video-target detecting and tracking method based on motion information and sparse projection

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Embodiment Construction

[0040] The specific steps of the video target automatic detection and tracking method based on motion information and sparse projection of the present invention are as follows:

[0041] 1. Automatic target detection.

[0042] (a) First, the two frames of images on the forward image are processed by the method based on corner detection and non-maximum value suppression and Perform feature point extraction (where Δ≥1), and use the RANSAC method to remove outliers on the two frames of images;

[0043] (b) Constructing the image and Affine changes between .

[0044] I α F = P α - 1 α × I α - Δ F - - - ( 1 )

[0045] In order to reduce the...

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Abstract

The invention discloses an automatic video-target detecting and tracking method based on motion information and sparse projection. The automatic video-target detecting and tracking method is used for solving the technical problem that an existing automatic target detecting and positioning tracking method based on forward-backward motion historical images is poor in tracking accuracy. According to the technical scheme, firstly, by means of forward images and the motion information of the forward images, detection of a moving object on the images is finished automatically; secondly, the detected moving object on the images is tracked in real time in a sparse projection mode; finally, by means of statistics of motion trail information, a tracing result of a real moving target is analyzed, and influences from noise targets are removed. Tests show that the detecting and tracing result accuracy reaches more than 85%.

Description

technical field [0001] The invention relates to a video target automatic detection and tracking method, in particular to a video target automatic detection and tracking method based on motion information and sparse projection. Background technique [0002] It is of great significance to automatically and effectively detect moving objects from complex moving backgrounds and perform robust online object tracking by using the coherent motion information characteristics of moving objects in space and time. The existing online target automatic detection and tracking methods mainly include: automatic target detection and tracking method based on background difference and automatic target detection and tracking method based on motion characteristic statistics. [0003] The document "Moving object localization in thermal imagery by forward-backward MHI. Computer Vision and Pattern Recognition Workshop, 133-140, 2006." discloses an automatic target detection and location tracking met...

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Application Information

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IPC IPC(8): G06T7/20
Inventor 张艳宁杨涛陈挺
Owner NORTHWESTERN POLYTECHNICAL UNIV
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