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Optics Letters

Optics Letters


  • Vol. 36, Iss. 11 — Jun. 1, 2011
  • pp: 2035–2037

Calculating depth maps from digital holograms using stereo disparity

Tomi Pitkäaho and Thomas J. Naughton  »View Author Affiliations

Optics Letters, Vol. 36, Issue 11, pp. 2035-2037 (2011)

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Depth extraction is an important aspect of three-dimensional (3D) image processing with digital holograms and an essential step in extended focus imaging and metrology. All available depth extraction techniques with macroscopic objects are based on variance; however, the effectiveness of this is object dependent. We propose to use disparity between corresponding points in intensity reconstructions to determine depth. Our method requires a single hologram of a scene, from which we reconstruct two different perspectives. In the reconstruction the phase information is not needed, which makes this method useful for in-line digital holography. To our knowledge disparity based 3D image processing has never been proposed before for digital holography.

© 2011 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(100.0100) Image processing : Image processing
(100.2000) Image processing : Digital image processing
(100.6890) Image processing : Three-dimensional image processing
(090.1995) Holography : Digital holography

ToC Category:
Image Processing

Original Manuscript: March 30, 2011
Revised Manuscript: April 28, 2011
Manuscript Accepted: April 29, 2011
Published: May 26, 2011

Tomi Pitkäaho and Thomas J. Naughton, "Calculating depth maps from digital holograms using stereo disparity," Opt. Lett. 36, 2035-2037 (2011)

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