Using the SpectraCube to Build a Multispectral Image Database

Finlayson, G. D., Hordley, S. D. and Morovic, P. M. (2004) Using the SpectraCube to Build a Multispectral Image Database. In: CGIV 2004 -- Second European Conference on Color in Graphics, Imaging and Vision, 2004-04-01.

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Multispectral image capture, unlike traditional RGB imaging, records the colour signals in a scene. Most available devices are either filter-wheel multiple exposure systems or point- measuring diffraction grating based devices. In this article we introduce a 2D matrix, full spectral, single exposure capture system – the Applied Spectral Imag-ing SpectraCube – which determines multispectral images, building on on the principle of interferometry. We explain the theory of operation of the SpectraCube, show characterisation results and present an initial multi-spectral database of indoor images. This step is not trivial. Often there are significant errors in the spectra captured by the SpectraCube. However, these errors are surprisingly regular and can be corrected. The images were captured at a high spectral resolution, comparable to spectroradiometers, yet at an exposure significantly shorter than that of filter- wheel based systems.

Item Type: Conference or Workshop Item (Paper)
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Interactive Graphics and Audio
Faculty of Science > Research Groups > Colour and Imaging Lab
Depositing User: Vishal Gautam
Date Deposited: 20 Jul 2011 20:45
Last Modified: 22 Apr 2023 02:46

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