%0 Conference Proceedings
%T Speckle noise MAP filtering based on local adaptive neighborhood statistics
%A Medeiros, Fátima N. S.,
%A Mascarenhas, Nelson D. A.,
%A Costa, Luciano da F.,
%E Stolfi, Jorge,
%E Tozzi, Clésio Luis,
%B Brazilian Symposium on Computer Graphics and Image Processing, 12 (SIBGRAPI)
%C Campinas, SP, Brazil
%I IEEE Computer Society
%J Los Alamitos
%1 SBC - Brazilian Computer Society and UNICAMP - University of Campinas
%K speckle noise map filtering, map.
%X This work proposes the use of an adaptive neighborhood procedure to extract local statistical properties of images in order to improve a speckle noise 'Maximum a Posteriori' (MAP) filtering performance. The strategy consists in growing the local statistically homogeneous area near the pixel in order to estimate its MAP filtering parameters. Measures evaluating both the signal-to-noise improvement and resolution loss due to filtering are computed. The use of region growing is investigated as a promising approach compared to a fixed size and shape neighborhood.
%O The conference was held in Campinas, SP, Brazil, from October 17 to 20.