Adaptive speckle reduction in ultrasound images using fuzzy logic on Coefficient of Variation
A speckle reduction filter for ultrasound images using Fuzzy logic on Coefficient of Variation (CV) is proposed. In the first level of adaptation, fuzzy logic is applied to classify noisy pixels into three classes based on CV. In the second level, the most suitable filter is applied on Homogenous, Detail and Edge defined classes based on Structural Similarity Index Measure of the image. Experimental results and comparison with existing works shows appreciable improvement in noise suppression and preservation of image structural details.
fuzzy logic coefficient of variation structural similarity speckle noise