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Title: Spectral imaging based on 2D diffraction patterns and a regularization model
Authors: Nimmer, MaxSteidl, GabrieleRiesenberg, RainerWuttig, Andreas
Publishers Version:
Issue Date: 2018
Published in: Optics Express 26 (2018), Nr. 22
Publisher: Washington D.C. : Optical Society of America
Abstract: We present a variational approach to reconstruct a multispectral image from an array of diffraction patterns captured in one monochromatic image. The mathematical model relies on the superposition of wavelength dependent calibration diffraction patterns and a spectral regularization with second order differences. The necessary preprocessing steps which influence the mathematical setting are discussed in detail. For computing a minimizer of our model we propose an active set method with model specific modifications. We validate our approach by experimental results for spectra within the range of 400 nm to 700 nm.
Keywords: multispectral image; monochromatic image; spectral imaging
DDC: 620
License: OSA Open Access Publishing Agreement
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Appears in Collections:Ingenieurwissenschaften

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