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Proceedings Paper

Optical unmixing using programmable spectral source based on DMD
Author(s): Ding Luo; Sebastian Bauer; Miro Taphanel; Thomas Längle; Fernando Puente León; Jürgen Beyerer
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Paper Abstract

Traditional spectral unmixing involves intense signal processing applied on multispectral or hyperspectral data captured from an imaging device, which is highly time-consuming. In this article, a novel method, namely "optical unmixing", is proposed to alleviate the post processing effort by replacing the heavy computation with a spectrally tunable light source. By choosing spectral features of the light source intelligently, the abundance map of each material can be retrieved with minimum computation from gray value images captured by a normal camera. For n unknown endmembers, 3n + 1 measurements are required to retrieve the abundance maps with proposed algorithms.

Paper Details

Date Published: 12 May 2016
PDF: 9 pages
Proc. SPIE 9855, Next-Generation Spectroscopic Technologies IX, 98550P (12 May 2016); doi: 10.1117/12.2228303
Show Author Affiliations
Ding Luo, Karlsruhe Institute of Technology (Germany)
Fraunhofer IOSB (Germany)
Sebastian Bauer, Karlsruhe Institute of Technology (Germany)
Miro Taphanel, Karlsruhe Institute of Technology (Germany)
Fraunhofer IOSB (Germany)
Thomas Längle, Karlsruhe Institute of Technology (Germany)
Fraunhofer IOSB (Germany)
Fernando Puente León, Karlsruhe Institute of Technology (Germany)
Jürgen Beyerer, Karlsruhe Institute of Technology (Germany)
Fraunhofer IOSB (Germany)

Published in SPIE Proceedings Vol. 9855:
Next-Generation Spectroscopic Technologies IX
Mark A. Druy; Richard A. Crocombe, Editor(s)

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