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Properties of acoustical speckle in the presence of phase aberration. Part I: First order statistics.

Publication ,  Journal Article
Trahey, GE; Smith, SW
Published in: Ultrasonic imaging
January 1988

The first order statistical properties of acoustical speckle patterns are studied as a function of several types of random and structured phase error. Such errors may arise from tissue velocity inhomogeneities or limitations in the acoustical imaging system. In this paper, we review the theory describing the statistical properties of speckle, describe a computer model which predicts the mean speckle brightness in the presence of phase aberrations, and report experiments in which we measure the effect of these aberrations on speckle brightness and variance. We find that the average speckle brightness is significantly reduced by even mild phase aberrations. The phase aberrations studied include focal point errors, random phase errors, and structured errors. Good agreement is found between experiment and computer simulation. We then discuss the implications of these results for imaging through aberrating media, tissue characterization and phase compensation methods.

Duke Scholars

Published In

Ultrasonic imaging

DOI

EISSN

1096-0910

ISSN

0161-7346

Publication Date

January 1988

Volume

10

Issue

1

Start / End Page

12 / 28

Related Subject Headings

  • Ultrasonography
  • Statistics as Topic
  • Quality Control
  • Models, Theoretical
  • Humans
  • Acoustics
  • 4003 Biomedical engineering
  • 0903 Biomedical Engineering
 

Citation

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ICMJE
MLA
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Trahey, G. E., & Smith, S. W. (1988). Properties of acoustical speckle in the presence of phase aberration. Part I: First order statistics. Ultrasonic Imaging, 10(1), 12–28. https://doi.org/10.1177/016173468801000102
Trahey, G. E., and S. W. Smith. “Properties of acoustical speckle in the presence of phase aberration. Part I: First order statistics.Ultrasonic Imaging 10, no. 1 (January 1988): 12–28. https://doi.org/10.1177/016173468801000102.
Trahey, G. E., and S. W. Smith. “Properties of acoustical speckle in the presence of phase aberration. Part I: First order statistics.Ultrasonic Imaging, vol. 10, no. 1, Jan. 1988, pp. 12–28. Epmc, doi:10.1177/016173468801000102.
Journal cover image

Published In

Ultrasonic imaging

DOI

EISSN

1096-0910

ISSN

0161-7346

Publication Date

January 1988

Volume

10

Issue

1

Start / End Page

12 / 28

Related Subject Headings

  • Ultrasonography
  • Statistics as Topic
  • Quality Control
  • Models, Theoretical
  • Humans
  • Acoustics
  • 4003 Biomedical engineering
  • 0903 Biomedical Engineering