Scale multiplication in odd Gabor transform domain for edge detection

CASIA OpenIR > 09年以前成果

	Scale multiplication in odd Gabor transform domain for edge detection
	Zhu, Zhenfeng ; Lu, Hanqing; Zhao, Yao
发表期刊	JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
	2007-02-01
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：25[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
推荐引用方式 GB/T 7714	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.