Bayesian-Based Speckle Suppression for SAR Image Using Contourlet Transform

• 作 者: De-Xiang Zhang Qing-Wei Gao Xi
• 机 构: SchoolofElectronicScienceandTechnologyofAnhuiUniversity,IntelligentComputingandSignalProcessingofMOE
• 出 处: 中国电子科技：英文版
• 发表日期: 2008年1期
• 关键词: 转换模式 光斑 电子技术 技术性能 Bayesian shrinkage contourlet transform despeckling SAR ima
• 基金项目: This work was supported by the National Nature Science Foundation of China under Grant No. 60603083 and the Nature Science Foundation of Anhui Province under Grant No. 070412059.

A novel and efficient speckle noise reduction algorithm based on Bayesian contourlet shrinkage using contourlet transform is proposed.First,we show the sub-band decompositions of SAR images using contourle transforms,which provides sparse representation a