Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10369460 | Signal Processing | 2013 | 8 Pages |
Abstract
⺠Directionlet transform based on lattice is used to represent the SAR image. ⺠Cauchy distribution with one parameter is employed to fit the detail coefficients. ⺠Parameter is estimated in frequency domain instead of spatial domain. ⺠Edge preservation and ratio image are used as evaluation indexes of despeckling.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Qingwei Gao, Yixiang Lu, Dong Sun, Zhan-Li Sun, Dexiang Zhang,