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Phase measurement errors due to holographic interferograms compression

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Phase measurement errors due to holographic interferograms compression

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dc.contributor.author Darakis, Emmanouil
dc.contributor.author Singh, Vijay Raj
dc.contributor.author Asundi, Anand Krishna
dc.contributor.author Soraghan, John J.
dc.date.accessioned 2011-07-19T08:45:51Z
dc.date.available 2011-07-19T08:45:51Z
dc.date.copyright 2007
dc.date.issued 2011-07-19
dc.identifier.citation Darakis, E., Singh, V. R., Asundi, A. K., & Soraghan, J. J. (2007). Phase measurement errors due to holographic interferograms compression. Optical Measurement Systems for Industrial Inspection V. Munich, Germany.
dc.identifier.uri http://hdl.handle.net/10220/6937
dc.description.abstract Digital holographic interferometry allows accurate measurements on a microscopic level. As the number and size of the recorded digital holograms increase so does their data volume. As a result the volume of holographic data can substantially constrain applications where storage or transmittance of such data is required. Compression of holographic data in order to reduce their storage requirements has been studied. The speckled nature of the interferograms makes their compression nontrivial; however image compression algorithms such as JPEG, JPEG2000 and Set Partitioning In Hierarchical Trees (SPIHT) have been shown to perform adequately. So far the compression effects of the holographic interferograms using such coding methods have mainly been studied in terms of errors at the reconstruction intensity. On the other hand, metrology applications usually rely on the holograms’ reconstructed phase. In this paper we investigate hologram compression and how it affects the reconstructed phase. Holographic interferometry experiments are carried out to investigate measurement error due to interferograms compression using image compression methods. The results indicate that compression can be achieved while the measurement error due to compression is retained low.
dc.format.extent 11 p.
dc.language.iso en
dc.rights © 2007 SPIE--The International Society for Optical Engineering. This paper was published in Proc. SPIE 6616 and is made available as an electronic reprint (preprint) with permission of SPIE--The International Society for Optical Engineering. The paper can be found at the following official DOI: http://dx.doi.org/10.1117/12.725858.  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
dc.subject DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
dc.title Phase measurement errors due to holographic interferograms compression
dc.type Conference Paper
dc.contributor.conference Optical Measurement Systems for Industrial Inspection (5th : 2007 : Munich, Germany)
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1117/12.725858
dc.description.version Published version

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