Achieving the potential of hybrid imaging systems

Andrew R. Harvey, Gonzalo Muyo, Mads Demenikov, Tom Vettenburg

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

Abstract

The use of hybrid optical-digital techniques facilitates improved optimisation of imaging systems. It involves the combined use of optical coding of an image using pupil-plane phase-modulation of the transmitted wavefront and postdetection digital decoding. Previous research in hybrid imaging tends to emphasize constancy of the modulation transfer function with aberrations and ignore the significant variations in the phase transfer function. We show that the restoration artefacts introduced by phase mismatch effects can also be used to deduce the defocus PSF, and when this is achieved, an overall improvement in image quality can be attained. Both numerical simulations and experimental images of hybrid imaging systems are presented. © 2010 SPIE.

Original languageEnglish
Title of host publicationAdaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II
Volume7818
DOIs
Publication statusPublished - 2010
EventAdaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II - San Diego, CA, United States
Duration: 1 Aug 20102 Aug 2010

Conference

ConferenceAdaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II
CountryUnited States
CitySan Diego, CA
Period1/08/102/08/10

Keywords

  • Artefacts
  • Computational imaging
  • Phase masks
  • Signal-to-noise ratio
  • Wavefront coding

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