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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 8 — Apr. 9, 2012
  • pp: 8770–8783

Standardized speckle measurement method matched to human speckle perception in laser projection systems

Stijn Roelandt, Youri Meuret, Gordon Craggs, Guy Verschaffelt, Peter Janssens, and Hugo Thienpont  »View Author Affiliations

Optics Express, Vol. 20, Issue 8, pp. 8770-8783 (2012)

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We present a standardized procedure to measure the amount of speckle in laser based projection systems. The parameters of the measurement procedure are chosen such that the measured speckle contrast values are in correspondence with the subjective speckle perception of a human observer, independent of the particularities of the laser projector’s illumination configuration. The resulting measurement configuration consists of a single digital image sensor in combination with a camera lens of which the settings are related to the human eye. In addition, a standardized measurement procedure and speckle pattern analysis method are suggested. Finally, the speckle measurement set-up is applied to a laser projection system and corresponding subjective speckle perception results of a large test public are discussed.

© 2012 OSA

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(330.7338) Vision, color, and visual optics : Visually coupled optical systems

ToC Category:
Coherence and Statistical Optics

Original Manuscript: December 5, 2011
Revised Manuscript: January 23, 2012
Manuscript Accepted: February 4, 2012
Published: April 2, 2012

Virtual Issues
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics

Stijn Roelandt, Youri Meuret, Gordon Craggs, Guy Verschaffelt, Peter Janssens, and Hugo Thienpont, "Standardized speckle measurement method matched to human speckle perception in laser projection systems," Opt. Express 20, 8770-8783 (2012)

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