An Introduction to Acoustical Holography, B. Hildebrand

Автор: Leonid Yaroslavskii
Название: Methods of Digital Holography
ISBN: 1475758294 ISBN-13(EAN): 9781475758290
Издательство: Springer
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Описание: Digital holography is the analysis and synthesis of wavefronts by means of digital computers. Here analysis means the construction of images of objects and the measurement of their physical characteristics by recording and measur- ing the wavefronts scattered by these objects. The synthesis is the reconstruc- tion of a wavefront of an object which is specified numerically. Problems involving the analysis and synthesis of wave fronts arise frequently in modem science and engineering. These are the problems encountered in the use of electromagnetic and sound waves to peer into the interior of various objects, the problems of the visual display of information in general, and the problems of measuring the characteristics of radiating systems, devising optical apparatus for signal processing, and developing hybrid electrooptic computer systems. Solutions are being sought for these problems through research in holography. The use of digital computers to analyze and synthesize wavefronts is an alternative to the analog methods, which include the methods of physical holography. The digital approach potentially has the advantages which are inherent in the digital technique for signal processing: the processing is highly accurate and absolutely reproducible; the characteristics of the processing or the processing algorithm itself can be changed in a simple way; complicated nonlinear and logic conversions can be carried out; the results are accessible; and it is easy to modify the process at any stage. Digital methods are particularly suitable where quantitative results are required.

Автор: N. Booth
Название: Acoustical Holography
ISBN: 1461582180 ISBN-13(EAN): 9781461582182
Издательство: Springer
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Описание: This volume contains the Proceedings of the Sixth International Symposium on Acoustical Holography and Imaging, held in San Diego, California, February 4-7, 1975. The 38 papers presented here define the state-of-the-art in the rapidly developing field of acoustical holography and imaging.

Автор: Keith Wang
Название: Acoustical Imaging
ISBN: 1468437577 ISBN-13(EAN): 9781468437577
Издательство: Springer
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Автор: L. M. Soroko
Название: Holography and Coherent Optics
ISBN: 1468434225 ISBN-13(EAN): 9781468434224
Издательство: Springer
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Описание: Now that holography has matured (wIth Dennis Gabor having received the Nobel Prize In 1971) and that coherent optics has proved to be even more powerful than originally imagined, in open- ing the new field of optical computing, it is particularlyappropri- ate to make available to English-speaking readers the translation of a uniquely outstanding text which presents the general and per- manent foundations of the field. L. M. Soroko's book has proved its usefulness, since It ap- peared in Russian In 1971, following the basic pattern set in the world's first monograph In the field, An Introduction to Coherent Optics and Holography, written by G. w. Stroke in 1966, and since also available in Its second US edition (1969) from Academic Press, following the publication of its Russian edition by Mlr In 1967. To further enhance the usefulness of L. M. Soroko's book, and to assure that Its fundamental nature be completely updated, the Translation Editor, In agreement with the author, felt that this could best be assured by including an updating appendix In the form of three recent papers In the general field of opto-dlgltal holographic Image processing and 3-D reconstructions, especially -also since their bibliographies Include numerous further refer- ences to a great many authors and workers throughout the world.