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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 8 — Sep. 4, 2013

CCD camera response to diffraction patterns simulating particle images

M. Stanislas, D. G. Abdelsalam, and S. Coudert  »View Author Affiliations


Applied Optics, Vol. 52, Issue 19, pp. 4715-4723 (2013)
http://dx.doi.org/10.1364/AO.52.004715


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Abstract

We present a statistical study of CCD (or CMOS) camera response to small images. Diffraction patterns simulating particle images of a size around 2–3 pixels were experimentally generated and characterized using three-point Gaussian peak fitting, currently used in particle image velocimetry (PIV) for accurate location estimation. Based on this peak-fitting technique, the bias and RMS error between locations of simulated and real images were accurately calculated by using a homemade program. The influence of the intensity variation of the simulated particle images on the response of the CCD camera was studied. The experimental results show that the accuracy of the position determination is very good and brings attention to superresolution PIV algorithms. Some tracks are proposed in the conclusion to enlarge and improve the study.

© 2013 Optical Society of America

OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(180.6900) Microscopy : Three-dimensional microscopy
(090.1995) Holography : Digital holography
(110.6955) Imaging systems : Tomographic imaging

ToC Category:
Detectors

History
Original Manuscript: February 11, 2013
Revised Manuscript: March 12, 2013
Manuscript Accepted: March 29, 2013
Published: June 28, 2013

Virtual Issues
Vol. 8, Iss. 8 Virtual Journal for Biomedical Optics

Citation
M. Stanislas, D. G. Abdelsalam, and S. Coudert, "CCD camera response to diffraction patterns simulating particle images," Appl. Opt. 52, 4715-4723 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-19-4715


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