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Proceedings Paper

Digital inline holography of biological specimens
Author(s): James P. Ryle; Unnikrishnan Gopinathan; Susan McDonnell; Thomas J. Naughton; John T. Sheridan
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Paper Abstract

Digital Holography is the technique of numerically reconstructing a three-dimensional (3D) image containing both amplitude and phase information from a two dimensional (2D) interference pattern recorded by the CCD. In this paper, we study the effects of varying the coherence length by using light from two types of source's (1) coherent laser light and (2) spatially filtered incoherent light from a Light Emitting Diode (LED). We present results using both calibrated test objects and biological samples with view to developing a 3D object recognition and classification system.

Paper Details

Date Published: 30 August 2006
PDF: 8 pages
Proc. SPIE 6311, Optical Information Systems IV, 63110C (30 August 2006); doi: 10.1117/12.680798
Show Author Affiliations
James P. Ryle, Univ. College Dublin (Ireland)
Unnikrishnan Gopinathan, Univ. College Dublin (Ireland)
Susan McDonnell, Univ. College Dublin (Ireland)
Thomas J. Naughton, National Univ. of Ireland, Maynooth (Ireland)
John T. Sheridan, Univ. College Dublin (Ireland)

Published in SPIE Proceedings Vol. 6311:
Optical Information Systems IV
Bahram Javidi; Demetri Psaltis; H. John Caulfield, Editor(s)

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