Speckle filtering in ultrasound images for feature extraction

This paper introduces use of the truncated median filter of Davies (1988) to filter ultrasound images, contrasting the results achieved with those of other current filters for speckle reduction. The filters used for comparison were a standard median filter, the adaptive median filter and the adaptive unsharp masking filter. The motivation is to determine whether a simple non-adaptive filter can achieve acceptable results with a lesser degree of computational complexity than more advanced adaptive filters with fully automatic implementation