Certain investigations on despeckling of SAR images

Abstract

Synthetic Aperture Radar SAR is an active remote sensing system newlinewhich is used to obtain high resolutions images SAR images are inherently newlineaffected by speckle noise due to the coherent nature of scattering effect The newlinemain aim of the speckle reduction is to remove the speckle noise with newlineretaining edge details and other information contained in an image newlineSAR images provide information which is useful for many newlineapplications such as sea ice monitoring surface deformation and detection newlineglacier monitoring crop production fore casting forest cover mapping ocean newlinewave spectra and monitoring disasters like forest fires volcanic eruptions and newlineoil spills The present research focuses on different despeckling algorithms newlinewhich are used in preprocessing of SAR images to remove the multiplicative newlinenoise and to preserve all texture features efficiently newline newline