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12 May 2011 Snapshot spectral imaging demonstrator
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Abstract
Spectral imaging measures data that is spatially and spectrally resolved: that is at each point in the image the spectrum is measured. Classical spectral imaging requires that the sample is scanned either spatially or spectrally. The main drawback of the classical approaches is that they are sequential. This paper presents a computed tomographic imaging spectrometer (CTIS) that can image two spatial and one spectral dimension in one camera frame. Unlike hyper-spectral imaging techniques which provide full spatial and spectral resolution, with the proposed technique there is a tradeoff between spatial and spectral resolution. The proposed CTIS system uses two crossed glass gratings that project the spectral and spatial image information to a 2D CCD camera array. The current system is designed for microscopic applications in pathology and cell imaging as well as macroscopic material analysis.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Martin De Biasio, Thomas Arnold, Andreas Tortschanoff, and Raimund Leitner "Snapshot spectral imaging demonstrator", Proc. SPIE 8032, Next-Generation Spectroscopic Technologies IV, 803212 (12 May 2011); https://doi.org/10.1117/12.899471
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