International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 90 - Number 7 |
Year of Publication: 2014 |
Authors: A. Rajamani, V. Krishnaveni |
10.5120/15584-4254 |
A. Rajamani, V. Krishnaveni . Performance Analysis Survey of Various SAR Image Despeckling Techniques. International Journal of Computer Applications. 90, 7 ( March 2014), 5-17. DOI=10.5120/15584-4254
Over the past four decades, the Synthetic Aperture Radar (SAR) imagery has become a beneficial and important application over the optical satellite imagery because of its ability to operate in any weather conditions. However, these images are affected with granular noise termed as Speckle noise. This noise affects the overall quality of the image adversely and hence hinders the observation of vital and crucial information present in the image. Thus, it has become essential to remove this speckle noise using suitable techniques. This paper presents the various important techniques available till date for the removal of speckle noise from SAR images and each technique with its own advantages and limitations are described. It also presents qualitative and quantitative measures of various techniques.