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Detection method for moving target in infrared image sequence under complex background

A technology for infrared images and moving targets, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problem of low target segmentation accuracy, and achieve the effect of solving the problem of adaptive threshold selection, accurate target segmentation, and good real-time performance

Inactive Publication Date: 2006-12-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

Infrared and Laser Engineering, 2000, 29(1): 5-8) proposed a target detection algorithm for infrared images in the field with complex backgrounds. The algorithm includes two processing steps: first, after scene registration, the frame difference The motion information of the target is extracted from the image, and the rough detection of the target is carried out accordingly; secondly, the fine detection is carried out in combination with the correlation of the target motion in time and space. The main defect of this algorithm is that the target segmentation accuracy is not high

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  • Detection method for moving target in infrared image sequence under complex background
  • Detection method for moving target in infrared image sequence under complex background
  • Detection method for moving target in infrared image sequence under complex background

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Embodiment Construction

[0061] By applying the present invention, an infrared moving vehicle detection system in a field environment is realized.

[0062] (1) Data source collection

[0063] Use the IR235 infrared camera produced by Wuhan Gaode Company, the working band is 8-14 microns, and the focal plane pixels are 320*240. During the shooting, an infrared camera was set up on a tripod to track the vehicle. The venue was a field test track. There were four types of off-road vehicles, vans, jeeps and cars. The shooting time was from afternoon to evening.

[0064] (2) Simulation results

[0065] Under the conditions of different vehicle models, target numbers, shooting distances and angles, satisfactory results can be obtained by adopting the invention to detect moving targets. Figure 6 The experimental results for the off-road vehicle detection, it can be seen that the integrity and accuracy of the target is good.

[0066] The present invention has faster execution speed. With the simulation pr...

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Abstract

The invention relates to a method for testing the motion target in infrared image sequence at complex background, belonging to the digit image processing technique, wherein the inventive method comprises: first, calculating the differential images between last frame and present frame, present frame and next frame, in infrared image sequence; then extracting change testing template from two differential images; combining two templates (selecting the crossed region), to obtain the motion target template; at last, marking the connecting area on the motion target template, to obtain the motion target; the step that extracting change testing template comprises: evaluating the differential image noise parameter (average value and variance) to extract initial change testing template, that iterating from two ends of histogram to the middle; using small unit to corrode and expand to process closed calculation with large unit. The invention can divide target accurately, have better real-time property, and strong robustness.

Description

technical field [0001] The invention relates to a method for detecting a moving target in an infrared image sequence under a complex background, which belongs to the technical field of digital image processing, and in particular relates to a moving target segmentation technology in an infrared image sequence. Background technique [0002] Due to the advantages of passive work, strong anti-interference ability and quasi-all-weather work, infrared imaging technology has been widely used in military fields such as reconnaissance, surveillance and guidance. In addition, it also has broad applications in civil fields such as aircraft navigation and highway intelligent transportation systems. Application prospects (see literature: Cai Yi, Tang Jinya. Several views on the development of infrared thermal imaging technology. Infrared Technology, 2000, 22(2): 2-6). [0003] Moving object detection technology has always been an important research topic in image processing and computer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00
Inventor 解梅胡柳
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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