Optical unmixing using programmable spectral source based on DMD

Ding Luo; Sebastian Bauer; Miro Taphanel; Thomas Längle; Fernando Puente León; Jürgen Beyerer

doi:10.1117/12.2228303

12 May 2016 Optical unmixing using programmable spectral source based on DMD

Ding Luo, Sebastian Bauer, Miro Taphanel, Thomas Längle, Fernando Puente León, Jürgen Beyerer

Proceedings Volume 9855, Next-Generation Spectroscopic Technologies IX; 98550P (2016) https://doi.org/10.1117/12.2228303
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

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.

Citation Download Citation

Ding Luo, Sebastian Bauer, Miro Taphanel, Thomas Längle, Fernando Puente León, and Jürgen Beyerer "Optical unmixing using programmable spectral source based on DMD", Proc. SPIE 9855, Next-Generation Spectroscopic Technologies IX, 98550P (12 May 2016); https://doi.org/10.1117/12.2228303

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