Book ChapterDOI
Image Spectrometers, Color High Fidelity, and Fine-Art Paintings
Alejandro Ribes
- pp 449-483
TLDR
This book chapter presents an introduction to image spectrometers with as example their application to the scanning of fine-art paintings and the so-called spectral reflectance reconstruction problem.Abstract:
This book chapter presents an introduction to image spectrometers with as example their application to the scanning of fine-art paintings. First of all, the technological aspects necessary to understand a camera as a measuring tool are presented. Thus, CFA-based cameras, Foveon-X, multi-sensors, sequential acquisition systems, and dispersing devices are introduced. Then, the simplest mathematical models of light measurement and light–matter interaction are described. Having presented these models, the so-called spectral reflectance reconstruction problem is presented. This problem is important because its resolution transforms a multi-wideband acquisition system into an image spectrometer. The first part of the chapter seeks to give the reader a grasp of how different technologies are used to generate a color image, and to which extent this image is expected to be high fidelity.read more
Citations
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Proceedings ArticleDOI
Spatial versus spectral compression ratio in compressive sensing of hyperspectral imaging
TL;DR: In this paper, the authors studied the influence of the ratio between the compression in the spatial and spectral domains on the performance of a 3D separable compressive hyperspectral imaging method.
Multispectral Imaging and Its Applications in Textile Industry and Related Fields.
Patrick G. Herzog,Bernhard Hill +1 more
TL;DR: The requirements of a multispectral imaging system are illuminated from an industrial point of view and the lack of spectral output devices gets evident as the accuracy of the rendered multisectral images achieves a certain level.
Dissertation
Structured photonic materials for multi-spectral imaging applications
TL;DR: In this article, the authors have developed synthetic multi-spectral materials that combine seven plasmonic filters with a low metal fill factor metamaterial components to increase the measured transmission of the plasmoric filter components.
Journal ArticleDOI
Configuration and Registration of Multi-Camera Spectral Image Database of Icon Paintings
TL;DR: A multi-camera, feature-based registration method is proposed with an iterative outlier removal phase that improves the convergence and the accuracy of the process and was tested against three approaches with different features or registration models.
Journal Article
Color imaging system using a single CCD area array
TL;DR: In this paper, a color imaging system employing a single CCD sensor with a color filter array has been implemented, which incorporates color channel enhancement and interpolation and provides display on a conventional color video monitor.
References
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Book
Color Science. Concepts and Methods, Quantitative Data and Formulas
TL;DR: An encyclopedic survey of color science can be found in this article, which includes details of light sources, color filters, physical detectors of radiant energy, and the working concepts in color matching, discrimination, and adaptation.
Book
Rank-Deficient and Discrete Ill-Posed Problems: Numerical Aspects of Linear Inversion
TL;DR: In this article, the authors present a survey of regularization tools for rank-deficient problems and problems with ill-conditioned and inverse problems, as well as a comparison of the methods in action.
Journal ArticleDOI
New contributions to the optics of intensely light-scattering materials.
TL;DR: In this paper, the Gurevic and Judd formulas were derived from the Kubelka-Munk differential equations, and they are exact under the same conditions as in this paper, that is, when the material is perfectly dull and when the light, is perfectly diffused or if it is parallel and hits the specimen under an angle of 60° from normal.
Patent
Color imaging array
TL;DR: In this article, a mosaic of selectively transmissive filters is superposed in registration with a solid state imaging array having a broad range of light sensitivity, the distribution of filter types in the mosaic being in accordance with the above-described patterns.