Compression of interference patterns with application to phase-shifting digital holography

E. Darakis, J.J. Soraghan

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

A compression method of phase-shifting digital holographic data is presented. Three interference patterns are recorded, and holographic information is extracted from them by phase-shifting interferometry. The scheme uses standard baseline Joint Photographic Experts Group (JPEG) or standard JPEG-2000 image compression techniques on the recorded interference patterns to reduce the amount of data to be stored. High compression rates are achieved for good reconstructed object image quality. The utility of the proposed method is experimentally verified with real holographic data. Results for compression rates using JPEG-2000 and JPEG of approximately 27 and 20, respectively, for a normalized root-mean-square error of ∼0.7 are demonstrated.
LanguageEnglish
Pages2437-2443
Number of pages6
JournalApplied Optics
Volume45
Issue number11
DOIs
Publication statusPublished - 2006

Fingerprint

holography
interference
root-mean-square errors
interferometry

Keywords

  • detectors
  • CCD
  • charge-coupled device
  • diffraction and gratings
  • phase shift
  • holography
  • computer holography
  • holographic interferometry
  • image processing
  • digital image processing
  • imaging systems
  • image quality assessment

Cite this

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abstract = "A compression method of phase-shifting digital holographic data is presented. Three interference patterns are recorded, and holographic information is extracted from them by phase-shifting interferometry. The scheme uses standard baseline Joint Photographic Experts Group (JPEG) or standard JPEG-2000 image compression techniques on the recorded interference patterns to reduce the amount of data to be stored. High compression rates are achieved for good reconstructed object image quality. The utility of the proposed method is experimentally verified with real holographic data. Results for compression rates using JPEG-2000 and JPEG of approximately 27 and 20, respectively, for a normalized root-mean-square error of ∼0.7 are demonstrated.",
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Compression of interference patterns with application to phase-shifting digital holography. / Darakis, E.; Soraghan, J.J.

In: Applied Optics, Vol. 45, No. 11, 2006, p. 2437-2443.

Research output: Contribution to journalArticle

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AB - A compression method of phase-shifting digital holographic data is presented. Three interference patterns are recorded, and holographic information is extracted from them by phase-shifting interferometry. The scheme uses standard baseline Joint Photographic Experts Group (JPEG) or standard JPEG-2000 image compression techniques on the recorded interference patterns to reduce the amount of data to be stored. High compression rates are achieved for good reconstructed object image quality. The utility of the proposed method is experimentally verified with real holographic data. Results for compression rates using JPEG-2000 and JPEG of approximately 27 and 20, respectively, for a normalized root-mean-square error of ∼0.7 are demonstrated.

KW - detectors

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KW - charge-coupled device

KW - diffraction and gratings

KW - phase shift

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KW - computer holography

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KW - digital image processing

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KW - image quality assessment

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