Achieving the potential of hybrid imaging systems

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

doi:10.1117/12.868032

27 August 2010 Achieving the potential of hybrid imaging systems

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

Proceedings Volume 7818, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II; 78180B (2010) https://doi.org/10.1117/12.868032
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

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.

Citation Download Citation

Andrew R. Harvey, Gonzalo Muyo, Mads Demenikov, and Tom Vettenburg "Achieving the potential of hybrid imaging systems", Proc. SPIE 7818, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II, 78180B (27 August 2010); https://doi.org/10.1117/12.868032

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KEYWORDS

Image restoration

Imaging systems

Point spread functions

Phase shift keying

Image compression

Image quality

Modulation transfer functions

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