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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

Reconstruction Process Scanning Line Ultrasound Frequency Holographic Principle Holographic Imaging 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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