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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 9 — Apr. 26, 2010
  • pp: 9220–9228

Fidelity optimization for aberration-tolerant hybrid imaging systems

Tom Vettenburg, Nicholas Bustin, and Andrew R. Harvey  »View Author Affiliations

Optics Express, Vol. 18, Issue 9, pp. 9220-9228 (2010)

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Several phase-modulation functions have been reported to decrease the aberration variance of the modulation-transfer-function (MTF) in aberration-tolerant hybrid imaging systems. The choice of this phase-modulation function is crucial for optimization of the overall system performance. To prevent a significant loss in signal-to-noise ratio, it is common to enforce restorability constraints on the MTF, requiring trade of aberration-tolerance and noise-gain. Instead of optimizing specific MTF characteristics, we directly minimize the expected imaging-error of the joint design. This method is used to compare commonly used phase-modulation functions: the antisymmetric generalized cubic polynomial and fourth-degree rotational symmetric phase-modulation. The analysis shows how optimal imaging performance is obtained using moderate phase-modulation, and more importantly, the relative merits of the above functions.

© 2010 OSA

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.3020) Image processing : Image reconstruction-restoration
(110.0110) Imaging systems : Imaging systems
(110.1758) Imaging systems : Computational imaging

ToC Category:
Imaging Systems

Original Manuscript: March 11, 2010
Revised Manuscript: April 9, 2010
Manuscript Accepted: April 9, 2010
Published: April 16, 2010

Tom Vettenburg, Nicholas Bustin, and Andrew R. Harvey, "Fidelity optimization for aberration-tolerant hybrid imaging systems," Opt. Express 18, 9220-9228 (2010)

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