Weighted least-squares phase unwrapping algorithm based on derivative variance correlation map

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	Weighted least-squares phase unwrapping algorithm based on derivative variance correlation map
	Lu Yuangang ; Wang XC(王向朝) ; Zhang Xuping
刊名	optik
	2007
卷号	118 期号:2 页码:62
关键词	information optics phase unwrapping weighted least-squares quality map
ISSN号	0030-4026
中文摘要	among different phase unwrapping approaches, the weighted least-squares minimization methods are gaining attention. in these algorithms, weighting coefficient is generated from a quality map. the intrinsic drawbacks of existing quality maps constrain the application of these algorithms. they often fail to handle wrapped phase data contains error sources, such as phase discontinuities, noise and undersampling. in order to deal with those intractable wrapped phase data, a new weighted least-squares phase unwrapping algorithm based on derivative variance correlation map is proposed. in the algorithm, derivative variance correlation map, a novel quality map, can truly reflect wrapped phase quality, ensuring a more reliable unwrapped result. the definition of the derivative variance correlation map and the principle of the proposed algorithm are present in detail. the performance of the new algorithm has been tested by use of a simulated spherical surface wrapped data and an experimental interferometric synthetic aperture radar (ifsar) wrapped data. computer simulation and experimental results have verified that the proposed algorithm can work effectively even when a wrapped phase map contains intractable error sources. (c) 2006 elsevier gmbh. all rights reserved.
收录类别	EI
语种	英语
WOS记录号	WOS:000243934500003
公开日期	2009-09-18
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/2174]
专题	上海光学精密机械研究所_信息光学开放实验室
推荐引用方式 GB/T 7714	Lu Yuangang,Wang XC,Zhang Xuping. Weighted least-squares phase unwrapping algorithm based on derivative variance correlation map[J]. optik,2007,118(2):62, 66.
APA	Lu Yuangang,王向朝,&Zhang Xuping.(2007).Weighted least-squares phase unwrapping algorithm based on derivative variance correlation map.optik,118(2),62.
MLA	Lu Yuangang,et al."Weighted least-squares phase unwrapping algorithm based on derivative variance correlation map".optik 118.2(2007):62.