A quantitative approach to speckle reduction via frequency compounding.

Journal Article (Journal Article)

Coherent speckle is a source of image noise in ultrasonic B-mode imaging. The use of multiple imaging frequencies has been suggested as a technique for speckle contrast reduction. This technique involves the averaging of images whose speckle patterns have been modified by a change in the spectrum of the transmitted or received acoustical pulse. We have measured the rate of this speckle pattern change in ultrasonic images as a function of the change in center frequency of the transmitted acoustical pulse. This data is used to quantitatively describe the trade-off of resolution loss versus speckle reduction encountered when frequency compounding is employed and to derive the optimal method of frequency compounding. These results are then used as a basis for describing the overall advisability of frequency compounding in ultrasonic imaging systems. Our analysis indicates that simple frequency compounding is counterproductive in improving image quality.

Full Text

Duke Authors

Cited Authors

  • Trahey, GE; Allison, JW; Smith, SW; von Ramm, OT

Published Date

  • July 1986

Published In

Volume / Issue

  • 8 / 3

Start / End Page

  • 151 - 164

PubMed ID

  • 3548000

Electronic International Standard Serial Number (EISSN)

  • 1096-0910

International Standard Serial Number (ISSN)

  • 0161-7346

Digital Object Identifier (DOI)

  • 10.1177/016173468600800301


  • eng