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Target tracking method and system based on image feature matching

A target tracking and image feature technology, applied in the field of image processing, can solve the problems of not meeting the real-time requirements of target detection, not meeting the real-time requirements of video speed detection, and not being able to capture multiple targets, etc., to achieve the goal of real-time target detection Effect

Pending Publication Date: 2021-02-26
无锡禹空间智能科技有限公司
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Problems solved by technology

However, since the basic assumption of the optical flow method is that the brightness is constant and the moving time is short, it is no longer applicable when the light changes or the time interval is too long. Most moving target tracking is based on principles such as motion estimation, probability distribution, and feature matching. The optical flow method has a large amount of calculation and cannot meet the real-time requirements of video speed detection
It can be seen that the existing technology cannot accurately capture multiple targets in high-resolution images in real time, and cannot meet the real-time requirements of target detection.

Method used

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  • Target tracking method and system based on image feature matching
  • Target tracking method and system based on image feature matching
  • Target tracking method and system based on image feature matching

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[0028] The technical solution of the present disclosure will be described in detail below in conjunction with the accompanying drawings. In the description of the present disclosure, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features, Used only to distinguish different components.

[0029] figure 1 It is a flow chart of the disclosed method, such as figure 1 As shown, 100: Collect continuous video images, and segment the video images into continuous first frame pictures. As a specific embodiment, by collecting continuous video images, capturing complete and stable vehicle information, and then dividing the video images into several frame images, so as to achieve the purpose of video image sequence preprocessing.

[0030] 101: Perform background elimination on the first frame of pictures...

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Abstract

The invention discloses a target tracking method and system based on image feature matching, relates to the technical field of image processing, solves the technical problem that a plurality of targets cannot be accurately captured in a high-resolution image in real time, and is characterized in that background elimination is carried out on a collected video frame to obtain a target image frame; an accurate and stable background image can be extracted through background elimination, a target image frame is accurately separated from an original frame through the background image, whether a tracked target is the same target or not is judged through the centroid distance, and finally the actual displacement of the target is calculated. A plurality of targets can be accurately captured in a high-resolution image in real time, and real-time target detection is realized.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, and in particular to a target tracking method and system based on image feature matching. Background technique [0002] The collection of real-time speed information plays a very important role in the collection of traffic flow information. The realization of Intelligent Traffic System (ITS, Intelligent Traffic System) is inseparable from the collection of real-time speed information. At present, the speed measurement methods are mainly divided into two categories, one One is based on hardware for speed measurement, and the other is based on software for speed measurement. Measuring speed through hardware mainly includes laser speed measurement and radar speed measurement, etc., but it requires professional equipment, expensive installation and maintenance costs, and has limitations in application. Measuring speed through software mainly includes speed measurement based on vide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246G06T7/194G06T7/136G06T7/66G06K9/46
CPCG06T7/246G06T7/194G06T7/136G06T7/66G06T2207/10016G06V10/443G06V2201/08G06V2201/07
Inventor 王堃韩亚敏
Owner 无锡禹空间智能科技有限公司
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