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	Texture-preserving despeckling of sar images using evidence framework
	Li, Heng-Chao; Hong, Wen; Wu, Yi-Rong; Tai, Heng-Ming
刊名	Ieee geoscience and remote sensing letters
	2007-10-01
卷号	4期号:4页码:537-541
关键词	Evidence framework Gaussian markov random field (gmrf) Speckle reduction Synthetic aperture radar (sar)
ISSN号	1545-598X
DOI	10.1109/lgrs.2007.900743
通讯作者	Li, heng-chao()
英文摘要	In this letter, a texture-preserving despeckling algorithm for synthetic aperture radar images using an evidence framework is proposed. the salient aspects of this approach are given as follows. 1) the maximum a posteriori estimate can be guaranteed to converge to the optima by selecting the gaussian distribution and gaussian markov random field model as the likelihood function and prior model, respectively. 2) mackay's evidence framework can automatically sustain the balance between speckle reduction and texture preservation. 3) we use the jeffreys prior to perform the second-level inference of the evidence framework. experimental results are given to demonstrate the validity of the proposed despeckling method.
WOS关键词	LOCAL STATISTICS ; SPECKLE ; NOISE ; MODEL
WOS研究方向	Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000250389900008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2380527
专题	中国科学院大学
通讯作者	Li, Heng-Chao
作者单位	1.Chinese Acad Sci, Inst Elect, Natl Key Lab Microwave Imaging Technol, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China 3.Univ Tulsa, Dept Elect Engn, Tulsa, OK 74104 USA
推荐引用方式 GB/T 7714	Li, Heng-Chao,Hong, Wen,Wu, Yi-Rong,et al. Texture-preserving despeckling of sar images using evidence framework[J]. Ieee geoscience and remote sensing letters,2007,4(4):537-541.
APA	Li, Heng-Chao,Hong, Wen,Wu, Yi-Rong,&Tai, Heng-Ming.(2007).Texture-preserving despeckling of sar images using evidence framework.Ieee geoscience and remote sensing letters,4(4),537-541.
MLA	Li, Heng-Chao,et al."Texture-preserving despeckling of sar images using evidence framework".Ieee geoscience and remote sensing letters 4.4(2007):537-541.

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