Publications [#237289] of Xiaobai Sun

Journal articles or Book chapters PUBLISHED

1. Portnoy, A; Pitsianis, N; Sun, X; Brady, D; Gibbons, R; Silver, A; Te Kolste, R; Chen, C; Dillon, T; Prather, D, Design and characterization of thin multiple aperture infrared cameras., Applied optics, vol. 48 no. 11 (April, 2009), pp. 2115-2126 [19363550], [doi]
   (last updated on 2025/02/02)

   Abstract:
   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.