Target tracking method based on ORB characteristics point matching

A feature point matching and target tracking technology, which is applied in image data processing, instruments, character and pattern recognition, etc., can solve problems such as background interference, background clutter, and target object color confusion, and achieve robustness and high efficiency. Effect

Inactive Publication Date: 2014-12-10
GUANGZHOU ZHONGDA DIGITAL HOME ENG TECH RES CENT +1
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Problems solved by technology

Second, complex background interference
In scenarios such as traffic detection, vehicle navigation, and pedestrian tracking, object tracking is extremely challenging due to complex background interference
There is a lot of noise in the actual complex environment, and the background is cluttered, and the color of the target object is e

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  • Target tracking method based on ORB characteristics point matching
  • Target tracking method based on ORB characteristics point matching
  • Target tracking method based on ORB characteristics point matching

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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0041] The method flow of the present invention is as attached figure 1 Shown, I t Represents the input original image frame at time t, this method first extracts the ORB feature point set S t , And then describe the ORB feature point set of the target object in the subspace and the previous frame at t-1 Match to generate the feature set of the current frame Then according to the position of the target in the previous frame, the method o...

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Abstract

The invention relates to a target tracking method based on ORB characteristics point matching. The target tracking method comprises: adopting an ORB (Oriented FAST and Rotated BRIEF) characteristic point set to represent a target object, and in a tracking process of the target object, iteratively updating the ORB characteristic point set by continuously adding new characteristic points and cutting outliers. A nearest neighborhood search algorithm is used between two continuous frames to find out matched characteristic point pairs, and then a motion transformation model of the tracking target is worked out according to the characteristic point pairs by using method that combines random sampling accordance with a multiple transformation model. The target tracking method based on ORB characteristics point matching is better in robustness and higher in efficiency, when being used for processing scenes with complex appearance change, disorder background, illumination variation and shielded target object.

Description

technical field [0001] The invention relates to the technical field of computer vision tracking, in particular to a target tracking method based on ORB feature point matching. Background technique [0002] Object tracking is an important research topic in the field of computer vision. Based on the rapid development of high-performance computers, the convenience of high-quality and inexpensive cameras, and the growing demand for automated video analysis, human beings have great interest in the exploration of visual object tracking algorithms. In recent years, visual tracking has been widely used in many fields, including motion gesture recognition, pedestrian tracking, intelligent monitoring, human-computer interaction, intelligent traffic detection, and vehicle navigation. With the development of the digital home industry and the improvement of the digital home industry chain, the application of video tracking in smart home monitoring has gradually deepened. On the basis of ...

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Application Information

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IPC IPC(8): G06T7/20G06K9/46
Inventor 王若梅韩冠亚陈湘萍谢雪峰
Owner GUANGZHOU ZHONGDA DIGITAL HOME ENG TECH RES CENT
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