Speckle reduction in ultrasound images of atherosclerotic carotid plaque

Author

Loizou, C. ; Christodoulou, C. ; Pattichis, C.S. ; Istepanian, R. ; Pantziaris, M. ; Nicolaides, A.

Author_Institution

Dept. of Comput. Sci., Intercollege Limassol Campus, Cyprus

Volume

2

fYear

2002

fDate

2002

Firstpage

525

Abstract

The objective of this work was to develop six speckle reduction-filtering techniques and evaluate them together with texture analysis in the assessment of 240 ultrasound images of the carotid artery. The de-speckled filters are based on anisotropic diffusion, local statistics with higher moments, and geometric filtering. Results showed that some improvement in class separation (between symptomatic and asymptomatic plaques) of the images was evident after de-speckle filtering.

Keywords

biological tissues; biomedical ultrasonics; higher order statistics; image texture; medical image processing; nonlinear filters; speckle; ultrasonic imaging; anisotropic diffusion; asymptomatic plaques; atherosclerotic carotid plaque; carotid artery; class separation; filtering techniques; geometric filtering; higher moments; local statistics; speckle reduction; symptomatic plaques; texture analysis; ultrasound images; Anisotropic magnetoresistance; Carotid arteries; Electronic mail; Filtering; Filters; Image texture analysis; Smoothing methods; Speckle; Statistics; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on

Print_ISBN

0-7803-7503-3

Type

conf

DOI

10.1109/ICDSP.2002.1028143

Filename

1028143