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Search: authors:"Mahmoud R. El-Sakka"

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Improved BM3D image denoising using SSIM-optimized Wiener filter

Image denoising is considered a salient pre-processing step in sophisticated imaging applications. Over the decades, numerous studies have been conducted in denoising. Recently proposed Block matching and 3D (BM3D) filtering added a new dimension to the study of denoising. BM3D is the current state-of-the-art of denoising and is capable of achieving better denoising as compared...

Patch-based models and algorithms for image denoising: a comparative review between patch-based images denoising methods for additive noise reduction

additive noise reduction Monagi H. Alkinani 1 Mahmoud R. El-Sakka 0 0 Department of Computer Science, Middlesex College, Western University , 1151 Richmond Street, N6A 5B7, London, Ontario , Canada 1

Optical Flow Active Contours with Primitive Shape Priors for Echocardiography

Accurate delineation of object borders is highly desirable in echocardiography, especially at the left ventricle. Among other model-based techniques, active contours (or snakes) provide a unique and powerful approach to image analysis. In this work, we propose the use of a new external energy for a gradient vector flow (GVF) snake, being the optical flow of a moving sequence...