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Proceedings Paper

High-speed multispectral three-dimensional imaging with a compound-eye camera TOMBO
Author(s): Keiichiro Kagawa; Naoki Fukata; Jun Tanida
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Paper Abstract

We propose a high-speed multispectral three-dimensional imaging system based on a compact and thin compound-eye camera called TOMBO. Wavelengths and times are assigned to the lenses in TOMBO. The time delays are introduced by the rolling shutter of CMOS image sensors, and wavelength decomposition is realized by attaching several kinds of wavelength filters to the lenses. A depth map is reproduced based on disparities in the unit images captured at the same timing. In reproducing the depth map, sum of sum of absolute differences (SSAD) is evaluated after average equalization to compare images for different wavelengths. A prototype of TOMBO is built with a SXGA monochrome CMOS image sensor with a rolling shutter, optical crosstalk barriers, a commercial 5x5-element microlens array, and commercial gelatin color filters. Enhancement of the frame rate and reproduction of a depth map and a 5-band deep-focus image are demonstrated.

Paper Details

Date Published: 7 September 2010
PDF: 8 pages
Proc. SPIE 7797, Optics and Photonics for Information Processing IV, 77970N (7 September 2010);
Show Author Affiliations
Keiichiro Kagawa, Osaka Univ. (Japan)
Naoki Fukata, Osaka Univ. (Japan)
Jun Tanida, Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 7797:
Optics and Photonics for Information Processing IV
Abdul Ahad Sami Awwal; Khan M. Iftekharuddin; Scott C. Burkhart, Editor(s)

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