Design and characterization of thin multiple aperture infrared cameras.

Journal Article (Journal Article)

We describe a multiple-aperture long-wave infrared camera built on an uncooled microbolometer array with the objective of decreasing camera thickness. The 5 mm thick optical system is an f/1.2 design with a 6.15 mm effective focal length. An integrated image is formed from the subapertures using correlation-based registration and a least gradient reconstruction algorithm. We measure a 131 mK NETD. The system's spatial frequency is analyzed with 4 bar targets. With proper calibration, our multichannel interpolation results recover contrast for targets at frequencies beyond the aliasing limit of the individual subimages.

Full Text

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Duke Authors

Cited Authors

Portnoy, A; Pitsianis, N; Sun, X; Brady, D; Gibbons, R; Silver, A; Te Kolste, R; Chen, C; Dillon, T; Prather, D

Published Date

April 2009

Published In

Applied Optics

Volume / Issue

48 / 11

Start / End Page

2115 - 2126

PubMed ID

19363550

Electronic International Standard Serial Number (EISSN)

1539-4522

International Standard Serial Number (ISSN)

1559-128X

Digital Object Identifier (DOI)

10.1364/ao.48.002115

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