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Use of fresnelets for phase shifting digital hologram compression

Darakis, E. and Soraghan, J.J. (2006) Use of fresnelets for phase shifting digital hologram compression. IEEE Transactions on Image Processing, 15 (12). pp. 3804-3811. ISSN 1057-7149

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Abstract

Fresnelets are wavelet-like base functions specially tailored for digital holography applications. We introduce their use in phase-shifting interferometry (PSI) digital holography for the compression of such holographic data. Two compression methods are investigated. One uses uniform quantization of the Fresnelet coefficients followed by lossless coding, and the other uses set portioning in hierarchical trees (SPIHT) coding. Quantization and lossless coding of the original data is used to compare the performance of the proposed algorithms. The comparison reveals that the Fresnelet transform of phase-shifting holograms in combination with SPIHT or uniform quantization can be used very effectively for the compression of holographic data. The performance of the new compression schemes is demonstrated on real PSI digital holographic data.

Item type: Article
ID code: 4694
Keywords: terms - fresnelets, image coding, phase-shifting interferometry (PSI) digital holography, wavelet transform, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
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Depositing user: Strathprints Administrator
Date Deposited: 09 Nov 2007
Last modified: 16 Jul 2013 20:50
URI: http://strathprints.strath.ac.uk/id/eprint/4694

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