Design and characterization of thin multiple aperture infrared cameras.

Published

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

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

Volume / Issue

  • 48 / 11

Start / End Page

  • 2115 - 2126

PubMed ID

  • 19363550

Pubmed Central 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

Language

  • eng