Shortt, Alison and Naughton, Thomas J. and Javidi, Bahram (2006) A companding approach for nonuniform quantization of digital holograms of three-dimensional objects. Optics Express, 14 (12). pp. 5129-5134. ISSN 1094-4087

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Abstract

We apply two novel nonuniform quantization techniques to digital holograms of three-dimensional real-world objects. Our companding approach, combines the efficiency of uniform quantization with the improved performance of nonuniform quantization. We show that the performance of companding techniques can be comparable with k-means clustering and a competitive neural network, while only requiring a single-pass processing step. The quantized holographic pixels are coded using lossless techniques for the calculation of compression ratio.

Item Type:	Article
Keywords:	Holography; Three-dimensional image processing; Data compression; Digital image processing;
Academic Unit:	Faculty of Science and Engineering > Computer Science
Item ID:	8628
Identification Number:	https://doi.org/10.1364/OE.14.005129
Depositing User:	Thomas Naughton
Date Deposited:	17 Aug 2017 15:34
Journal or Publication Title:	Optics Express
Publisher:	Optical Society of America
Refereed:	Yes
Funders:	Enterprise Ireland, Science Foundation Ireland
URI:	https://www.osapublishing.org/
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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