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Scale multiplication in odd Gabor transform domain for edge detection
Zhu, Zhenfeng; Lu, Hanqing; Zhao, Yao
2007-02-01
发表期刊JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
卷号18期号:1页码:68-80
文章类型Article
摘要In this paper, we propose an adaptive edge detection technique based on scale multiplication in odd Gabor transform domain (ESMG). With adjacent scale multiplication in odd Gabor transform domain, a sharpened edge response output is obtained, which can more effectively resist the inverse influence from noise contamination on the performance of edge detector. Based on odd Gabor filter with single scale, it is shown that Rayleigh distribution can be feasibly adopted to model the real pdf of edge response. Thus the pdf of sharpened edge response output can be approximately modeled by an exponential distribution since there exists strong correlation between two edge response outputs with two adjacent scale factors. In determining the threshold for the sharpened edge response, an adaptive strategy is applied, in which the nonlinear relation of the threshold with the mean and variance of exponential distribution is exploited. Moreover, an optimization problem is finally formulated to find the adaptive adjustment factor. The experimental results on both synthetic and real world natural images show that our scheme is robust and takes on good edge detection performance. (c) 2006 Elsevier Inc. All rights reserved.
关键词Edge Detection Gabor Transform Adaptive Threshold Scale Multiplication
WOS标题词Science & Technology ; Technology
收录类别SCI
语种英语
WOS研究方向Computer Science
WOS类目Computer Science, Information Systems ; Computer Science, Software Engineering
WOS记录号WOS:000244027100006
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9468
专题09年以前成果
作者单位1.Beijing Jiaotong Univ, Inst Sci Informat, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing, Peoples R China
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Zhu, Zhenfeng,Lu, Hanqing,Zhao, Yao. Scale multiplication in odd Gabor transform domain for edge detection[J]. JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,2007,18(1):68-80.
APA Zhu, Zhenfeng,Lu, Hanqing,&Zhao, Yao.(2007).Scale multiplication in odd Gabor transform domain for edge detection.JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,18(1),68-80.
MLA Zhu, Zhenfeng,et al."Scale multiplication in odd Gabor transform domain for edge detection".JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION 18.1(2007):68-80.
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