A new compounding approach for speckle reduction [diagnostic ultrasound]

Author

Li, Pai-Chi ; Chen, Mei-Ju

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

2

fYear

2000

fDate

36800

Firstpage

1699

Abstract

A new compounding technique for reducing speckle brightness variations is proposed. This method is based on speckle decorrelation of signals under different strain states. The different strain states can be created using externally applied forces. Such forces produce 3D tissue motion. By correcting the in-plane motion, the images under different strain states have identical characteristics except for speckle appearance due to un-corrected out-of-plane motion. Therefore, speckle noise is reduced without affecting in-plane spatial resolution. Experimental results indicated that speckle brightness variations were reduced by more than 50% with an applied strain at 4.8%

Keywords

acoustic correlation; biological tissues; biomedical ultrasonics; brightness; decorrelation; image resolution; medical image processing; speckle; 3D tissue motion; compounding approach; diagnostic ultrasound; different strain states; externally applied forces; in-plane motion; in-plane spatial resolution; speckle brightness variations; speckle decorrelation; speckle reduction; uncorrected out-of-plane motion; Brightness; Capacitive sensors; Decorrelation; Imaging phantoms; Noise reduction; Radio frequency; Spatial resolution; Speckle; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.921649

Filename

921649