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A novel phase aberration correction technique based on local target motion

Publication ,  Journal Article
Zhao, D; Trahey, GE
Published in: Ultrasonics Symposium Proceedings
December 1, 1990

Inhomogeneity in acoustic velocity in tissue can introduce phase errors to diagnostic ultrasonic imaging systems and therefore degrade image quality. A novel technique for phase correction, based on the mean difference of specific brightness, that employs echoes from moving targets as a quality factor is described. The authors present the fundamental statistics of the mean-speckle-brightness-based quality factors, which are concerned only with diffuse stationary targets, and the mean difference of speckle-brightness-based quality factors. A comparison of the two types of quality factors is also included. The results show that the difference-based quality factors are viable for phase correction when a moving target is present in the field of view. A theoretical consideration indicates that the signal-to-noise ratio of the difference-based factors is worse than that of the mean-speckle-brightness-based factors with or without the presence of system noise.

Duke Scholars

Published In

Ultrasonics Symposium Proceedings

ISSN

0090-5607

Publication Date

December 1, 1990

Volume

3

Start / End Page

1609 / 1612
 

Citation

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Zhao, D., & Trahey, G. E. (1990). A novel phase aberration correction technique based on local target motion. Ultrasonics Symposium Proceedings, 3, 1609–1612.
Zhao, D., and G. E. Trahey. “A novel phase aberration correction technique based on local target motion.” Ultrasonics Symposium Proceedings 3 (December 1, 1990): 1609–12.
Zhao D, Trahey GE. A novel phase aberration correction technique based on local target motion. Ultrasonics Symposium Proceedings. 1990 Dec 1;3:1609–12.
Zhao, D., and G. E. Trahey. “A novel phase aberration correction technique based on local target motion.” Ultrasonics Symposium Proceedings, vol. 3, Dec. 1990, pp. 1609–12.
Zhao D, Trahey GE. A novel phase aberration correction technique based on local target motion. Ultrasonics Symposium Proceedings. 1990 Dec 1;3:1609–1612.

Published In

Ultrasonics Symposium Proceedings

ISSN

0090-5607

Publication Date

December 1, 1990

Volume

3

Start / End Page

1609 / 1612