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Proceedings Paper

Error-diffused quantization in cell-oriented holograms
Author(s): Ramesh Nagarajan; Roger L. Easton Jr.; Reiner Eschbach
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Paper Abstract

Error diffusion is a useful tool for quantizing N-dimensional data. For complex-valued amplitudes (N equals 2), error diffusion has been used to improve reconstruction of hologram of objects with added random phase. In this paper, the stability of holograms obtained by conventional independent quantization and error-diffused quantization are tested under varying conditions of quantization and for several types and sizes of images. The restoration of missing high-frequency components due to feedback of the error improves the reconstruction of objects even without a random phase. The results are improved further by coupling error diffusion with a nonuniform quantization.

Paper Details

Date Published: 12 April 1995
PDF: 13 pages
Proc. SPIE 2406, Practical Holography IX, (12 April 1995); doi: 10.1117/12.206232
Show Author Affiliations
Ramesh Nagarajan, Rochester Institute of Technology (United States)
Roger L. Easton Jr., Rochester Institute of Technology (United States)
Reiner Eschbach, Xerox Webster Research Ctr. (United States)

Published in SPIE Proceedings Vol. 2406:
Practical Holography IX
Stephen A. Benton, Editor(s)

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