Linear despeckle filtering
This chapter provides the basic theoretical background of linear despeckle filtering techniques together with their algorithmic implementation, MATLAB® code for selected filters and practical examples on phantom and real ultrasound images. There are three groups of filters presented in this chapter, first-order statistics filtering, local statistics filtering and homogeneous mask area filtering. Despeckle filtering was evaluated for all filters presented in this chapter on phantom ultrasound carotid artery images and real ultrasound images and videos of the common carotid artery (CCA). Furthermore, we present an evaluation and comparison of five linear despeckle filtering algorithms presented in this chapter. The evaluation is carried out on a phantom image, an artificial image and on real carotid and cardiac ultrasound images. Furthermore, findings on video despeckling are presented.
Linear despeckle filtering, Page 1 of 2
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