UHB Imaging

  • E. Alasaarela
  • K. Tervola
  • J. Ylitalo
  • J. Koivukangas
Part of the Acoustical Imaging book series (ACIM, volume 12)

Abstract

A new ultrasonic holographic imaging method, UHB imaging has been developed. This method is based on the combination of the holographic principle and conventional B-scan technique. This combining has been achieved using computerized numerical image reconstruction based on wavefront backward propagation. An important feature of this reconstruction process is a wavefront curvature compensation which leads to optimal lateral and longitudinal resolution. The theory of UHB imaging has been verified firstly by simulated UHB imaging in a computer and secondly by constructing an UHB apparatus and producing experimental UHB images of a resolution test object and human brain specimens.

Keywords

Propa Poss 

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References

  1. 1.
    A L Boyer et al., Computer reconstruction of images from ultrasonic holograms. Acoustical Holography, Vol 2 Ed A F Metherell et al., Plenum Press, New York (1970).Google Scholar
  2. 2.
    J W Goodman, Introduction to Fourier optics, McGraw - Hill Book Company, San Francisco (1968).Google Scholar
  3. 3.
    J Koivukangas, Doctoral thesis (to be published in 1983)Google Scholar

Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • E. Alasaarela
    • 1
  • K. Tervola
    • 1
  • J. Ylitalo
    • 1
  • J. Koivukangas
    • 2
  1. 1.Dept. of Electrical EngineeringUniversity of OuluOulu 57Finland
  2. 2.Dept. of NeurosurgeryUniversity of OuluOulu 57Finland

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