Autofocusing of Optical Scanning Holography Based on Entropy Minimization

Zhenbo Ren; Ni Chen; Antony Chan; Edmund Lam

doi:10.1364/DH.2015.DT4A.4

Digital Holography & 3-D Imaging Meeting
OSA Technical Digest (Optica Publishing Group, 2015),
paper DT4A.4
•https://doi.org/10.1364/DH.2015.DT4A.4

Autofocusing of Optical Scanning Holography Based on Entropy Minimization

Zhenbo Ren, Ni Chen, Antony Chan, and Edmund Lam

Digital Holography and Three-Dimensional Imaging 2015

Shanghai China
24–28 May 2015
ISBN: 978-1-55752-991-6

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Digital Holographic Optical Processing (DT4A)

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Z. Ren, N. Chen, A. Chan, and E. Lam, "Autofocusing of Optical Scanning Holography Based on Entropy Minimization," in Digital Holography & 3-D Imaging Meeting, OSA Technical Digest (Optica Publishing Group, 2015), paper DT4A.4.

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Abstract

In optical scanning holography, extracting distance of object is an indispensable step for numerical reconstruction. In this paper, we use entropy as a measurement to achieve autofocusing under different situations.

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