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Image Segmentation of Passive THz Image.

Authors :
ZHU Wei-wen
ZHAO Yue-jin
ZHANG Jing-shui
LI Bing
DONG Li-quan
ZHANG Cun-lin
Source :
Transactions of Beijing Institute of Technology; apr2013, Vol. 33 Issue 4, p399-402, 4p
Publication Year :
2013

Abstract

This work studies the image segmentation algorithm in passive THz imaging. Considering the feature that the passive THz image has different smoothness in horizontal and vertical direction, an improved Laplacian of Gaussian (LOG) operator is proposed to rectify the different smoothness in directions. Different from the traditional LoG operator with its isotropy, the improved operator has different edge test scales in horizontal and vertical direction. Experiments show that, with the use of improved operator, human's body and the concealed object in THz images could be automatically segmented. The concealed objects could be identified directly and efficiently that satisfies the application requirements of passive THz image. [ABSTRACT FROM AUTHOR]

Details

Language :
Chinese
ISSN :
10010645
Volume :
33
Issue :
4
Database :
Supplemental Index
Journal :
Transactions of Beijing Institute of Technology
Publication Type :
Academic Journal
Accession number :
89130549