A Locally Adaptive Filter for Noise Filtering of InSAR Interferogram

摘要：

The article proposes an adaptive filtering approach for interferograms,which is a modification to the proposed filter of reference2.Based on local frequency estimates,we compute the window sizes of two directions and the normal orientation of local phase fringes.A directionally dependent filtering window is aligned perpendicular to the normal orientation of local phase fringes by interpolation,making the pixels included in the filtering window have more homogeneous values.This filter minimizes the loss of signal and reduces the level of noise.By using two sets of simulated data,the effectiveness of this filter is demonstrated by its capabilities in adaptive noise filtering,fringe preservation,and residue reduction.

作者: Baisheng Huang Jiadong Xu

作者单位: School of Electronic and Information,Northwestern Polytechnical University,Xian,P.R.China,710072

会议类型: 国际会议

会议名称: 第一届智能网络与智能系统国际会议(ICINIS 2008)(The First International Conference on Intelligent Networks and Intelligent Systems)

会议地点: 武汉

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）