Information retrieval from ultrasonic (acoustical) holograms by moire principle

Pal Greguss

doi:10.1117/12.19378

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1 February 1991 Information retrieval from ultrasonic (acoustical) holograms by moire principle

Pal Greguss

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Proceedings Volume 1238, Three-Dimensional Holography: Science, Culture, Education; (1991) https://doi.org/10.1117/12.19378
Event: International Seminar on 3D Holography, 1989, Kiev, Ukraine

Abstract

Due to the wavelength difference between the insonifying object wave and the reconstructing light wave ultrasonic holography as a three-dimensional imaging technique has little if any practical value. By introducing the concept of " empty US hologram" and " complete US hologram" and combining it with moire technique attempts are made to extract nonpicture-type information from US holograms. 1 .

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Pal Greguss "Information retrieval from ultrasonic (acoustical) holograms by moire principle", Proc. SPIE 1238, Three-Dimensional Holography: Science, Culture, Education, (1 February 1991); https://doi.org/10.1117/12.19378

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