A Visible Infrared Cascade Video Tracking Method

A video tracking and visible light technology, applied in the field of video image processing and application, can solve the problem that the short-term tracker does not have the automatic restart function, can no longer maintain the tracking state, and does not consider the weak texture characteristics of infrared images. And other issues

Active Publication Date: 2020-03-24
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] 1) The short-term tracker does not have an automatic restart function, and it cannot maintain the tracking state when the target is blocked or leaves the field and then enters the field;
[0009] 2) The long-term tracking framework does not take into account the weak texture characteristics of infrared images and the cascade of information from the two channels of visible light and infrared, and lacks the criteria for joint tracking;
[0010] 3) Visible light and infrared image resolution usually have a large degree of resolution difference, and the image fusion method for tracking inherits the general defects of the existing fusion, and faces the problem of information selection

Method used

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  • A Visible Infrared Cascade Video Tracking Method
  • A Visible Infrared Cascade Video Tracking Method
  • A Visible Infrared Cascade Video Tracking Method

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Embodiment Construction

[0056] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0057] Such as figure 1 As shown, a typical target tracking mechanism is mainly composed of three parts: tracker, detector, and learner.

[0058] In terms of trackers, in the visible light data channel, the target texture is clear, which is suitable for correlation tracking methods with fast calculation speed. Correlation is a measure of the similarity between two signals, and the more similar the signals, the higher the correlation. The conversion relationship between autocorrelation and convolution is: if and only if That is, when f is a Hermite matrix, the cross-correlation value is completely equivalent to the convolution value.

[0059] Therefore, the cross-correlation calculation can be done using the fast Fourier transform of equation (1):

[0060]

[0061] in Represents the Fourier transform. Assuming that the number of pixels in i...

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Abstract

The invention relates to a visible light infrared cascade video tracking method. The method uses the cascading method of the visible light data channel and the infrared data channel to obtain the tracking results of the two data channels respectively, and chooses the tracking results. It takes into account the advantages of the two channels of target detection, makes up for their respective defects, and improves the tracking ability.

Description

technical field [0001] The invention belongs to the field of video image processing and application, and in particular relates to a visible light infrared cascade video tracking method. Background technique [0002] Video object tracking refers to the automatic acquisition of the location, speed, size and other attribute information of the object of interest by analyzing the video sequence. [0003] With the development of the times, the early radar tracking system (the world's first tracking radar station SCR-28 appeared in 1937) is facing challenges such as anti-radiation weapon attacks, target electromagnetic stealth, electronic interference and low-altitude penetration. Passive imaging methods, especially photoelectric platforms, have become the main force of target detection due to their high resolution and rich image information. This is also the main reason why the research enthusiasm for optical target tracking has not diminished in recent years. [0004] In recent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/246G06K9/62
CPCG06T7/251G06T2207/10016G06T2207/10048G06T2207/20081G06F18/2148G06F18/24147
Inventor 曹世翔李岩谭伟邢坤周楠江澄何红艳
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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