一种基于InSAR相干系数的SAR阴影提取方法

基金项目: 国家863计划资助项目(2001AA132010)

详细信息

A Method for Extracting the SAR Shadow from InSAR Coherence

¹ Stacte National Key Lab.of Microwave Imaging Technology,Institute of Electronic,Chinese Academy of Science,19 Beisihuan West Road,Beijing 100080,China;² Graduate School of Chinese Academy of Sciences,A 19 Yuquan Road,Beijing 100039,China

Funds: 国家863计划资助项目(2001AA132010)

摘要: 给出了一种新的阴影提取方法,根据阴影区域在InSAR相干系数图上的特性,利用Sigma滤波和最优阈值分割算法实现阴影的自动提取。实验结果表明,本方法是一种高效的阴影提取方法。
- SAR /
- InSAR /
- 阴影 /
- 相干系数 /
- Sigma滤波 /
- 最优阈值化
Abstract: Shadow is a general phenomenon which occurs in SAR images,and it has many vital applications in various aspects.A new solution of shadow extraction is presented in this paper.By Sigma filter and optimal threshold segmentation algorithm,Shadow can be extracted from InSAR coherence.Both the theoretical analyses and the experimental results indicate that the proposed method is a highly efficient method of shadow extraction.
- SAR /
- InSAR /
- shadow /
- coherence /
- Sigma filter /
- optimal threshold