SUN Nan1, WANG Yan-fei2, ZHANG Bing-chen2. An Extension of Structure Detection and Optimal Speckle Filtering in Multilook Polarimetric SAR Images[J]. Journal of Remote Sensing, 2007,(5):686-693.
SUN Nan1, WANG Yan-fei2, ZHANG Bing-chen2. An Extension of Structure Detection and Optimal Speckle Filtering in Multilook Polarimetric SAR Images[J]. Journal of Remote Sensing, 2007,(5):686-693. DOI: 10.11834/jrs.20070594.
The availability of full polarimetric SAR data made it become possible to use three complex elements(HH
HV
VV) of the polarimetric scattering matrix to reduce speckle in multilook full polarimetric SAR images.As a typical example
the multilook polarimetric whitening filter(MPWF) is regarded as optimal.However
to enhance the precision of parameter estimation and meanwhile detect the structural feature adaptively
windowing algorithm must be needed when filtering.In this paper
two new windowing approaches are introduced and NASA SIR-C/X-SAR
L band
four-look processed polarimetric SAR data of the Tian-Mountain Forest is used for simulation.Experimental results demonstrate the effectiveness of these methods both on speckle reduction and preservation of texture information.
关键词
MPWF结构检测相干斑多视极化SAR
Keywords
MPWFStructure detectionspeckleMultilook polarimetric SAR