Sar Speckle Filtering by Improved INLP Filter
Tej-Albaha Hamrouni, Mohamed Yahia, Riadh Abdelfattah · 2018
The filtered pixels of the infinite number of looks prediction (INLP) filter are determined by the application of a linear regression between means and variances for various window sizes. In this paper, we improved the performance of the INLP filter in terms of versatility, computing complexity, speckle reduction and spatial detail preservation by adapting the parameter Nmin which is the key parameter to scene variability. Results show that the improved INLP outperformed the improved sigma filter, the non-local filter and the original INLP filter.