Speckle Reduction in Ultrasound Image
نویسنده
چکیده
Abstract In this paper, a detailed description and comparison of speckle reduction of medical ultrasound is presented. Four speckle reduction filters are described in a detailed fashion to facilitate implementation for research and evaluation. The filtering techniques considered include Lee,Kuan,Frost and Oriented Speckle Reducing Anisotropic Diffusion(OSRAD). These filtering techniques are applied to a 2D liver image and respective de speckled images are obtained. Application of objective quality metrics quantifies the preservation of image edges, overall image distortion, and improvement in image contrast. It is concluded that the optimal method is the OSRAD diffusion filter. This method is capable of strong speckle suppression with less computational complexity.
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