Ultrasonic image processing using wavelet based deconvolution

Author

Qinzhen Xu ; Wan, Suiren ; Pei, Wenjiang ; Luxi Yang

Author_Institution

Dept. of Radio Eng., Southeast Univ., Nanjing, China

Volume

2

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

1013

Abstract

The low resolution of the ultrasonic images is caused by the convolution between the reflect function of the measured tissues and the system pulse response. In this paper we estimate the system pulse response on the envelope ultrasonic image data using higher order spectra, and then implement the wavelet-based deconvolution algorithm. The resulting images behave clearer in velamen boundary and tissue layers, and the texture information also appears more detailed. The deconvolved image achieves good resolution gains in both axial and lateral direction.

Keywords

Wiener filters; deconvolution; identification; image texture; ultrasonic imaging; wavelet transforms; Wiener filters; higher order spectra; identification; reflect function; system pulse response; texture information; tissue layers; ultrasonic image data; ultrasonic image processing; velamen boundary; wavelet based deconvolution algorithm; Additive noise; Biomedical measurements; Convolution; Deconvolution; Image processing; Image resolution; Pulse measurements; Signal resolution; System identification; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on

Conference_Location

Nanjing

Print_ISBN

0-7803-7702-8

Type

conf

DOI

10.1109/ICNNSP.2003.1281040

Filename

1281040