Detection of specular reflectors and suppression of speckle by phase filtering

D. Kim, J. F. Greenleaf, T. M. Kinter, R. R. Kinnick

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The object detection capabilities of ultrasonic imaging systems are limited by the ability of the detection process to distinguish resolved object signals from backscattered speckle noise. It has been shown that the phase of the Fourier transform of speckle signals is random. Based on this property, the authors propose a novel algorithm for distinguishing between speckle and specular targets. The proposed algorithm is implemented by taking the Fourier transform of the received signal, low-pass filtering the unwrapped phase, and taking the inverse Fourier transform of the filtered phase to produce a specular reflector enhanced and speckle reduced ultrasonic image. The algorithm has been confirmed by simulations and experiments using phantoms.

Original languageEnglish (US)
Title of host publicationBiomedical Engineering Perspectives
Subtitle of host publicationHealth Care Technologies for the 1990's and Beyond
PublisherPubl by IEEE
Pages331-332
Number of pages2
Editionpt 1
ISBN (Print)0879425598
StatePublished - Dec 1 1990
EventProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA
Duration: Nov 1 1990Nov 4 1990

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 1
ISSN (Print)0589-1019

Other

OtherProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityPhiladelphia, PA, USA
Period11/1/9011/4/90

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ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

Cite this

Kim, D., Greenleaf, J. F., Kinter, T. M., & Kinnick, R. R. (1990). Detection of specular reflectors and suppression of speckle by phase filtering. In Biomedical Engineering Perspectives: Health Care Technologies for the 1990's and Beyond (pt 1 ed., pp. 331-332). (Proceedings of the Annual Conference on Engineering in Medicine and Biology; No. pt 1). Publ by IEEE.