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Proceedings Paper

Near-sensor real-time imaging spectroscopy for industrial applications
Author(s): Erik Astrand; Mats Osterberg; Anders Astrom
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Paper Abstract

In this paper we present a system for high speed pixelwise spectral classification. The system is based on the line imaging PGP (prism-grating-prism) spectrograph combined with the smart image sensor MAPP2200. The classification is implemented using a near-sensor approach where linear discriminant functions are calculated using exposure time modulation and analog summation of pixel data. After A/D-conversion the sums are compared and classified pixels are output from the sensor chip. The theoretical maximum classified pixel rate of the system is around 1 MHz depending on number of classes, etc. In most practical applications however, the limit will be set by the available amount of light.

Paper Details

Date Published: 5 March 1996
PDF: 12 pages
Proc. SPIE 2661, Real-Time Imaging, (5 March 1996); doi: 10.1117/12.234648
Show Author Affiliations
Erik Astrand, Linkoping Univ. (Sweden)
Mats Osterberg, Linkoping Univ. (Sweden)
Anders Astrom, Linkoping Univ. (Sweden)

Published in SPIE Proceedings Vol. 2661:
Real-Time Imaging
Phillip A. Laplante; Alexander D. Stoyenko; Divyendu Sinha, Editor(s)

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