Results 11 to 20 of about 19,300 (299)

Reflectance Imaging spectroscopy: Fusion of VNIR and SWIR for Cultural Heritage Analysis. [PDF]

open access: yes, 2023
Reflectance Imaging Spectroscopy, often referred to as hyperspectral imaging, is an imaging technique that enables the simultaneous capture of spatial and spectral information from a scene without physical contact and in a non-invasive manner. These desirable features make it especially well-suited for applications in Cultural Heritage analysis, where ...
Grillini, Federico
openaire   +3 more sources

About the use of reflectance terminology in imaging spectroscopy

open access: yes, 2005
Analysing databases, field and airborne spectrometer data, modelling studies and publications, a lack of consistency in the use of definitions and terminology of reflectance quantities can be observed. One example is the term `BRDF¿ (bidirectional reflectance distribution function) assigned to significantly differing quantities, ranging from the ...
Schaepman-Strub, G.   +4 more
openaire   +2 more sources

Panoramic, Macro and Micro Multispectral Imaging: An Affordable System for Mapping Pigments on Artworks

open access: yesJournal of Conservation and Museum Studies, 2015
Multispectral imaging systems are used in art examinations to map and identify pigments, binders and areas of retouching. A monochromatic camera is combined with an appropriate wavelength selection system and acquires a variable number of spectral images
Antonino Cosentino
doaj   +3 more sources

Wide-field photothermal reflectance spectroscopy for single nanoparticle absorption spectrum analysis

open access: yesNanophotonics, 2021
Photothermal imaging is useful for detecting individual nanoparticles and obtaining the absorption spectra. This study presents a wide-field photothermal reflectance spectroscopy technique achieved by incorporating a pump beam, a probe beam, and a charge-
Kim Jung-Dae   +10 more
doaj   +1 more source

From Materials to Technique: A Complete Non-Invasive Investigation of a Group of Six Ukiyo-E Japanese Woodblock Prints of the Oriental Art Museum E. Chiossone (Genoa, Italy)

open access: yesSensors, 2022
In the present work, a complete non-invasive scientific investigation of six Utagawa Kunisada’s woodblock prints (nishiki-e) belonging to the Oriental Art Museum “E. Chiossone” (Genoa, Italy), was performed in situ.
Marco Gargano   +6 more
doaj   +1 more source

Reflectance Spectroscopy as a Novel Tool for Thickness Measurements of Paint Layers

open access: yesMolecules, 2023
A major challenge in heritage science is the non-invasive cross-sectional analysis of paintings. When low-energy probes are used, the presence of opaque media can significantly hinder the penetration of incident radiation, as well as the collection of ...
Alice Dal Fovo   +4 more
doaj   +1 more source

Bidirectional reflectance factor measurement of conifer needles with microscopic spectroscopy imaging

open access: yesAgricultural and Forest Meteorology, 2023
Xiaohan Dong, Yongkang Lai, Xihan Mu
exaly   +2 more sources

DROACOR® REFLECTANCE RETRIEVAL FOR HYPERSPECTRAL MINERAL EXPLORATION USING A GROUND-BASED ROTATING PLATFORM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The acquisition of imaging spectroscopy data from ground based rotating stages is a novel approach which is more and more used in open pit mines for prospection and controlling.
D. Schläpfer   +3 more
doaj   +1 more source

Investigations on photovoltaic material absorptivity using hyperspectral photoluminescence excitation imaging

open access: yesEPJ Photovoltaics, 2023
Photoluminescence imaging has become a standard method to characterize solar cells. However, performing some quantitative analysis of this technique requires the assumption of uniform local absorptivity, which cannot be directly measured using ...
Legrand Marie   +4 more
doaj   +1 more source

A Comprehensive and Systematic Diagnostic Campaign for a New Acquisition of Contemporary Art—The Case of Natura Morta by Andreina Rosa (1924–2019) at the International Gallery of Modern Art Ca’ Pesaro, Venice

open access: yesHeritage, 2021
A multi-analytical approach has been employed to investigate the painting Natura Morta (1954–1955) by Andreina Rosa (1924–2019) to assess the state of conservation and to understand more about the painting materials and techniques of this artwork, which ...
Anna Piccolo   +8 more
doaj   +1 more source

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