Thin infrared imaging systems through multichannel sampling

Mohan Shankar; Rebecca Willett; Nikos Pitsianis; Timothy Schulz; Robert Gibbons; Robert Te Kolste; James Carriere; Caihua Chen; Dennis Prather; David Brady

doi:10.1364/AO.47.0000B1

Thin infrared imaging systems through multichannel sampling

Mohan Shankar, Rebecca Willett, Nikos Pitsianis, Timothy Schulz, Robert Gibbons, Robert Te Kolste, James Carriere, Caihua Chen, Dennis Prather, David Brady

Research output: Contribution to journal › Article › peer-review

70 Scopus citations

Abstract

The size of infrared camera systems can be reduced by collecting low-resolution images in parallel with multiple narrow-aperture lenses rather than collecting a single high-resolution image with one wide-aperture lens. We describe an infrared imaging system that uses a three-by-three lenslet array with an optical system length of 2.3 mm and achieves Rayleigh criteria resolution comparable with a conventional single-lens system with an optical system length of 26 mm. The high-resolution final image generated by this system is reconstructed from the low-resolution images gathered by each lenslet. This is accomplished using superresolution reconstruction algorithms based on linear and nonlinear interpolation algorithms. Two implementations of the ultrathin camera are demonstrated and their performances are compared with that of a conventional infrared camera.

Original language	English (US)
Pages (from-to)	B1-B10
Journal	Applied optics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1364/AO.47.0000B1
State	Published - Apr 1 2008
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.47.0000B1

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title = "Thin infrared imaging systems through multichannel sampling",

abstract = "The size of infrared camera systems can be reduced by collecting low-resolution images in parallel with multiple narrow-aperture lenses rather than collecting a single high-resolution image with one wide-aperture lens. We describe an infrared imaging system that uses a three-by-three lenslet array with an optical system length of 2.3 mm and achieves Rayleigh criteria resolution comparable with a conventional single-lens system with an optical system length of 26 mm. The high-resolution final image generated by this system is reconstructed from the low-resolution images gathered by each lenslet. This is accomplished using superresolution reconstruction algorithms based on linear and nonlinear interpolation algorithms. Two implementations of the ultrathin camera are demonstrated and their performances are compared with that of a conventional infrared camera.",

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T1 - Thin infrared imaging systems through multichannel sampling

AU - Shankar, Mohan

AU - Willett, Rebecca

AU - Pitsianis, Nikos

AU - Schulz, Timothy

AU - Gibbons, Robert

AU - Te Kolste, Robert

AU - Carriere, James

AU - Chen, Caihua

AU - Prather, Dennis

AU - Brady, David

PY - 2008/4/1

Y1 - 2008/4/1

N2 - The size of infrared camera systems can be reduced by collecting low-resolution images in parallel with multiple narrow-aperture lenses rather than collecting a single high-resolution image with one wide-aperture lens. We describe an infrared imaging system that uses a three-by-three lenslet array with an optical system length of 2.3 mm and achieves Rayleigh criteria resolution comparable with a conventional single-lens system with an optical system length of 26 mm. The high-resolution final image generated by this system is reconstructed from the low-resolution images gathered by each lenslet. This is accomplished using superresolution reconstruction algorithms based on linear and nonlinear interpolation algorithms. Two implementations of the ultrathin camera are demonstrated and their performances are compared with that of a conventional infrared camera.

AB - The size of infrared camera systems can be reduced by collecting low-resolution images in parallel with multiple narrow-aperture lenses rather than collecting a single high-resolution image with one wide-aperture lens. We describe an infrared imaging system that uses a three-by-three lenslet array with an optical system length of 2.3 mm and achieves Rayleigh criteria resolution comparable with a conventional single-lens system with an optical system length of 26 mm. The high-resolution final image generated by this system is reconstructed from the low-resolution images gathered by each lenslet. This is accomplished using superresolution reconstruction algorithms based on linear and nonlinear interpolation algorithms. Two implementations of the ultrathin camera are demonstrated and their performances are compared with that of a conventional infrared camera.

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Thin infrared imaging systems through multichannel sampling

Abstract

ASJC Scopus subject areas

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