Investigation of Performance of Savitzky-Golay Filter for Speckle Reduction in Ultrasound Images

Abstract

Speckle noise is inherent nature of ultrasound images which makes interpretation of the images difficult and hence is undesirable. In this work, Savitzky-Golay filter is investigated for speckle reduction in ultrasound images. This filter is tested for different order and frame lengths. Optimal order and frame length is chosen heuristically by analyzing performance of the filter for a range of filter order and frame length. The method is tested on synthetic images as well as clinical ultrasound images and promising results are achieved.