Journal
INFRARED PHYSICS & TECHNOLOGY
Volume 77, Issue -, Pages 258-266Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.infrared.2016.06.008
Keywords
Infrared imaging guidance system; Tank segmentation; The Otsu method; Threshold analysis; Background constraint
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Funding
- Postdoctoral Science Foundation of China [2014M562657]
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In an effort to achieve fast and effective tank segmentation of infrared images under complex background for the homing anti-tank missile, the threshold of the maximum between-class variance method (i.e., the Otsu method) is experimentally analyzed, and the working mechanism of the Otsu method is revealed. Subsequently, a fast and effective method for tank segmentation under complex background is proposed based on the Otsu method by constraining the image background pixels and gray levels. Firstly, with the prior information of the tank, derive the equation to calculate the number of pixels of tank according to optical imaging principle, and then use the calculated tank size to constrain the image background pixels. Secondly, employ the golden section to restrict the background gray levels. Finally, use the Otsu method to implement the segmentation of the tank. Experimental results demonstrate that the proposed method can get as an ideal result as the manual segmentation with less running time. (C) 2016 Elsevier B.V. All rights reserved.
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