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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 19 — Jul. 1, 2008
  • pp: D136–D143

Free-viewpoint images captured using phase-shifting synthetic aperture digital holography

Tatsuya Nakatsuji and Kyoji Matsushima  »View Author Affiliations


Applied Optics, Vol. 47, Issue 19, pp. D136-D143 (2008)
http://dx.doi.org/10.1364/AO.47.00D136


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Abstract

Free-viewpoint images obtained from phase-shifting synthetic aperture digital holography are given for scenes that include multiple objects and a concave object. The synthetic aperture technique is used to enlarge the effective sensor size and to make it possible to widen the range of changing perspective in the numerical reconstruction. The lensless Fourier setup and its aliasing-free zone are used to avoid aliasing errors arising at the sensor edge and to overcome a common problem in digital holography, namely, a narrow field of view. A change of viewpoint is realized by a double numerical propagation and by clipping the wave field by a given pupil. The computational complexity for calculating an image in the given perspective from the base complex-valued image is estimated at a double fast Fourier transform. The experimental results illustrate the natural change of appearance in cases of both multiple objects and a concave object.

© 2008 Optical Society of America

OCIS Codes
(110.6880) Imaging systems : Three-dimensional image acquisition
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: October 15, 2007
Revised Manuscript: February 6, 2008
Manuscript Accepted: February 6, 2008
Published: April 18, 2008

Citation
Tatsuya Nakatsuji and Kyoji Matsushima, "Free-viewpoint images captured using phase-shifting synthetic aperture digital holography," Appl. Opt. 47, D136-D143 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-19-D136

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