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Moving-target active tracking method based on edge enhancement template matching

A moving target and active tracking technology, applied in image enhancement, image data processing, instruments, etc., can solve the problems of high difficulty in continuous and precise control of low-cost cameras, poor real-time tracking of moving targets in dynamic backgrounds, etc.

Active Publication Date: 2017-04-19
航天图景(北京)科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problems of poor real-time tracking of moving targets in the existing dynamic background and high difficulty in continuous and precise control of low-cost cameras, and propose an active tracking method for moving targets based on edge-enhanced template matching

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  • Moving-target active tracking method based on edge enhancement template matching
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  • Moving-target active tracking method based on edge enhancement template matching

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Embodiment Construction

[0050] The specific implementation process of the present invention is as follows:

[0051] (1) such as figure 1 As shown, when the dome camera is stationary, the real-time captured video is detected for moving targets and all moving targets in the field of view are automatically tracked. The specific steps to start the active tracking mode by manually selecting the target of interest are:

[0052] (11) When the dome camera is stationary, use the background modeling method to detect all moving targets in the static field of view, and track each moving target;

[0053] (12) Generate a target ID number for each moving target tracked in a static background, and display the foreground image of each target in a column on the right side of the current frame according to the size of the target ID number;

[0054] (13) Click on the foreground image of a target of interest, and start the active target tracking mode with the selected target as the tracking target to actively track the target of...

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Abstract

A moving-target active tracking method based on edge enhancement template matching comprises the following steps of firstly, using an improved tracking target selection criterion to select an interesting target, and establishing a gray template of a target and starting an active tracking mode; secondly, carrying out Gaussian smoothing, normalization and threshold processing on a target template and a search area, and then acquiring an edge-enhanced threshold image; and then using a method of matching and combining fast Fourier transform and an integral image fast template to realize rapid positioning of the target, and updating a target matching template; and finally, through calibrating a camera control instruction, forming a calibration instruction, then using Kalman filtering to predict a position of a next frame of the target, according to the calibration instruction, emitting a motion control instruction to a camera so as to control motion of a holder, and realizing active tracking of the target. In the invention, a common and non-feedback control holder can be controlled so that the active tracking of the target is realized.

Description

Technical field [0001] The invention relates to an active tracking method of a moving target based on edge enhancement template matching, which is suitable for a PTZ camera to actively track the moving target under a dynamic background on the basis of target detection. Background technique [0002] Moving target tracking technology is one of the core topics in the field of computer vision, which has very important meaning and wide practical value. Due to the superior performance of PTZ (Pan / Tilt / Zoom, pan / tilt omni-directional (up and down, left and right) movement and lens zoom, zoom control) cameras, PTZ cameras have become more and more widely used in the field of computer vision in recent years. While PTZ camera rotation, translation, and telescopic performance bring a wider range of applications, it also poses new problems for target detection and tracking, including advanced technologies in image processing, pattern recognition, artificial intelligence, automatic control, a...

Claims

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Application Information

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IPC IPC(8): G06T7/292
CPCG06T2207/10016
Inventor 李铁军
Owner 航天图景(北京)科技有限公司
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