Speckle Reduction of Polarimetric SAR Image Based on a New Independent Component Analysis
Yiming Pi · Radar Science and Technology · 2005
The polarimetric SAR image provides a very convenient approach for signal processing and acquisition of radar image. Based on the characteristic of polarimetric SAR image, a new Independent Component Analysis(ICA) algorithm is proposed for speckle reduction, which is Infomax algorithm.Then the simulation of separation of speckle from polarimetric SAR image is accomplished.The experiment shows that the Infomax algorithm has lower convergence and higher reliability.The image processed by the ICA algorithm generally has lower contrast ratio which implies a reduced speckle effect.And the image quality has been improved greatly.