Filtering echocardiographic image sequences in frequency domain

Author

Plebe, Alessio ; Gallo, Giovanni

Author_Institution

Dept. of Math. & Inf., Catania Univ., Italy

fYear

2001

fDate

2001

Firstpage

238

Lastpage

243

Abstract

This work describes a new method for filtering echocardiographic image sequences, based on the assumption of an almost periodic motion of the cardiac wall. Exploiting the knowledge of the regular motion of the heart can be advantageous with respect to classical filtering methods where no assumption is made on the image dynamics. From the ideal model of a pulsing ring, a mathematical description of the corresponding gray level pattern in time has been derived, and a peculiar feature in the frequency domain has been observed. This feature has been used as the discriminating function in enhancing pixels with higher probability of lying on the ventricular wall trajectory

Keywords

echocardiography; filtering theory; frequency-domain analysis; image enhancement; image sequences; medical image processing; cardiac wall periodic motion; discriminating function; echocardiographic image sequence filtering; frequency domain; gray level pattern; image dynamics; pixel enhancement; pulsing ring model; regular heart motion; ventricular wall trajectory; Echocardiography; Filtering; Frequency domain analysis; Heart; Image processing; Image sequences; Kinetic theory; Layout; Mathematical model; Noise reduction;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing and Analysis, 2001. ISPA 2001. Proceedings of the 2nd International Symposium on

Conference_Location

Pula

Print_ISBN

953-96769-4-0

Type

conf

DOI

10.1109/ISPA.2001.938634

Filename

938634