Control of optical aberrations with coded apertures

Andrew R. Harvey (Lead / Corresponding author), Gonzalo D. Muyo, Tom Vettenburg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We report the design of binary-amplitude masks that in conjunction with digital restoration enable mitigation of optical aberrations. Essentially, the design process aims to maintain high modulation-transfer functions by reducing destructive interference of optical-transfer-function phasors. Two optimization techniques are described: so-called contour masks and the use of multiple pixelated masks. In general the resultant modulation-transfer function is 20% of a diffractionlimited imaging system and due to the absence of nulls recorded images can be restored to a high-contrast diffractionlimited image. Example applications are presented for correcting ocular aberrations and for conformal imaging.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Subtitle of host publicationUnconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems
PublisherSPIE-International Society for Optical Engineering
Volume8165
ISBN (Print)9780819487759
DOIs
Publication statusPublished - 7 Nov 2011
EventUnconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems - San Diego, CA, United States
Duration: 21 Aug 201125 Aug 2011

Conference

ConferenceUnconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems
CountryUnited States
CitySan Diego, CA
Period21/08/1125/08/11

Keywords

  • Computational imaging
  • Fourier optics and signal processing
  • Image formation theory
  • Image processing
  • Imaging systems
  • Optical transfer functions

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