Practical Issues in Wave-Front Sensing by Use of Phase Diversity
Applied Optics, Vol. 42, Issue 26, pp. 5284-5289 (2003)
http://dx.doi.org/10.1364/AO.42.005284
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Abstract
We present the results of the phase-diversity algorithm applied to simulated and laboratory data. We show that the exact amount of defocus distance does not need to be known exactly for the phase-diversity algorithm on extended scene imaging. We determine, through computer simulation, the optimum diversity distance for various scene types. Using laboratory data, we compare the aberrations recovered with the phase-diversity algorithm and those measured with a Fizeau interferometer that uses a He-Ne laser. The two aberration sets agree with a Strehl ratio of over 0.9. The contrast of the recovered object is found to be ten times that of the raw image.
© 2003 Optical Society of America
OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.0100) Image processing : Image processing
(100.1830) Image processing : Deconvolution
(100.3010) Image processing : Image reconstruction techniques
(100.3020) Image processing : Image reconstruction-restoration
(110.0110) Imaging systems : Imaging systems
Citation
Jean J. Dolne, Richard J. Tansey, Katherine A. Black, Jana H. Deville, Philip R. Cunningham, Kenneth C. Widen, and Paul S. Idell, "Practical Issues in Wave-Front Sensing by Use of Phase Diversity," Appl. Opt. 42, 5284-5289 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-26-5284
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