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Method and device for tracking video objects

A technology for video objects and contours, applied in the field of image processing, can solve the problems of poor accuracy and low tracking speed of video objects, and achieve the effect of reducing the amount of calculation and improving the speed of tracking.

Active Publication Date: 2011-12-07
HUAWEI TECH CO LTD
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Problems solved by technology

[0027] In order to solve the problems of low tracking speed and poor accuracy of video objects in the prior art, embodiments of the present invention provide a method and device for tracking video objects

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  • Method and device for tracking video objects
  • Method and device for tracking video objects

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Embodiment Construction

[0055] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0056] In order to accurately track video objects with affine changes and non-affine changes, the embodiment of the present invention performs a tracking method for video objects, first obtain the contour feature value of the video object in the current frame image; then use The mean shift method obtains the feature point of the video object in the current frame image, obtains the matching feature point of the video object in the next frame image; then according to the matching feature point of the video object in the n...

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Abstract

Embodiments of the present invention provide a method and a device for tracking video objects, which relate to the technical field of image processing and are invented to achieve accurate tracking of video objects. The method includes: taking the feature points of the outline of the video object in the current frame image; finding matching feature points; detecting at least one candidate outline of the video object in the next frame image; calculating the video object in the current frame image Calculate the contour feature value of the candidate contour; Compare the contour feature value of the candidate contour with the contour feature value of the video object in the current frame image, if the two match, the candidate contour is The outline of the video object in the next frame of image. Embodiments of the present invention can improve the accuracy of video object tracking.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for tracking video objects. Background technique [0002] Computer vision refers to the use of cameras and computers instead of human eyes to identify, track and measure tracking targets. Among them, the real-time tracking technology of video objects is an important topic in the field of computer vision, and it is the basis of a series of work such as video analysis, video understanding, video object recognition, and video object behavior analysis. [0003] Currently, there are many methods for video object tracking. According to whether pattern matching between frames of the image is required, video object tracking methods can be divided into detection-based video object tracking methods and recognition-based video object tracking methods. [0004] The method of tracking video objects based on detection is to directly extract the contour of the vid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/46G06T7/00
Inventor 赵光耀于纪征孔晓东曾贵华
Owner HUAWEI TECH CO LTD
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