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Portable Multispectral System Based on Color Detector for the Analysis of Homogeneous Surfaces
2019
Journal of Sensors
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In this way, the size of the image is reduced to one pixel. The wavelength selection is carried out by means of a LED array disposed surrounding the color detector. ...
The imaging device is reduced to a small digital color detector with an active area of 3×2 mm2. ...
Escobedo wants to thank the Spanish Ministry of Education, Culture and Sport (MECD) for a predoctoral grant (FPU13/05032). ...
doi:10.1155/2019/1519753
fatcat:fwl2bmhvmvaeznutscv4ux4xse
Multi-technique characterization of madder lakes: A comparison between non- and micro-destructive methods
2018
Journal of Cultural Heritage
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In the final procedure, the chromophores-containing molecules were separated using a sample preparation procedure based on acid hydrolysis and solvent extraction, and analysed by high-pressure liquid chromatography ...
The chemical characterization of paint material is paramount for the understanding of painting techniques, provenance studies and for assessing conservation strategies. ...
Most of them are based on High Pressure Liquid Chromatography coupled with Diode-Array, Fluorescence or Mass Spectrometric Detectors (HPLC-DAD-FD-MS) [5, 6] , but also 3D Fluorescence and Surface Enhanced ...
doi:10.1016/j.culher.2018.01.013
fatcat:vpmbmdsbebgqtkqvy7jnxill2y
STATE OF ARTS OF MONUMENTAL STONES DIAGNOSIS AND MONITORING
2017
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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of the state of conservation of the monumental stone surfaces. ...
In this context, the determination of the surface water absorption, moisture content, colour variation and mechanical properties are important parameters for the control, and the monitoring over time, ...
Anna Galluccio, Scientific Attache' Italian Embassy in Canada, 275 Slater Street, Ottawa, Ontario K1P 5H9, for the financial support for the organization of the session "Italian Research in Cultural Heritage ...
doi:10.5194/isprs-archives-xlii-2-w5-665-2017
fatcat:voso7bll3jaujfjfqhxjzwo6xe
Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans
2022
Remote Sensing
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The hardware and software capabilities of the compact-profiling hybrid instrumentation for radiometry and ecology (C-PHIRE) instruments on an unmanned surface vessel (USV) are evaluated. ...
The hybridspectral C-PHIRE instruments consist of an array of 18 multispectral microradiometers with 10 nm wavebands spanning 320–875nm plus a hyperspectral compact grating spectrometer (CGS) with 2048 ...
Acknowledgments: The high level of success achieved in the field work used for this study established a foundation of understanding that was the direct consequence of commitments from individuals who contributed ...
doi:10.3390/rs14051084
fatcat:ngaowhw75babtasbox74sjpkfm
Vicarious Radiometric Calibration of a Multispectral Camera on Board an Unmanned Aerial System
2014
Remote Sensing
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Combinations of unmanned aerial platforms and multispectral sensors are considered low-cost tools for detailed spatial and temporal studies addressing spectral signatures, opening a broad range of applications ...
check surfaces, respectively. ...
The authors thank Jesús Ferná ndez-Herná ndez for kindly providing the UFLIP software. Furthermore, the authors would like to thank the reviewers for their helpful comments. ...
doi:10.3390/rs6031918
fatcat:kjdo2rvfwfbavminqu5rx345me
Earth-observing satellite intercomparison using the Radiometric Calibration Test Site at Railroad Valley
2017
Journal of Applied Remote Sensing
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The current results show that all sensors agree with the Radiometric Calibration Test Site (RadCaTS) to within AE5% in the solar-reflective regime, except for one band on VIIRS that is within AE6%. ...
The period of this study is 2012 to 2016 for MODIS, VIIRS, and ETM+, 2013 to 2016 for OLI, and 2015 to 2016 for MSI. ...
Finally, the authors would like to thank the reviewers of this paper for their thoughtful comments and suggestions. ...
doi:10.1117/1.jrs.12.012004
fatcat:xt2z6aeyjzdlvfg26vl4lffczq
Current Status of Optical Systems for Measuring Lycopene Content in Fruits: Review
2021
Applied Sciences
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, Raman spectroscopy, and the systems of multispectral imaging (MSI) and hyperspectral imaging (HSI). ...
Optical systems are used for analysing the internal composition and the external properties in food. ...
For the analysis, an advantages and disadvantages comparison of the following optical systems is presented: the colorimeter, multispectral and hyperspectral imaging systems, high-performance liquid chromatography ...
doi:10.3390/app11199332
fatcat:4cuiarmlxfe4vjtveh2rl4so7a
Fast multispectral diffuse optical tomography system for in vivo three-dimensional imaging of seizure dynamics
2012
Applied Optics
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We describe a multispectral continuous-wave diffuse optical tomography (DOT) system that can be used for in vivo three-dimensional (3-D) imaging of seizure dynamics. ...
Fast 3-D data acquisition is realized through a time multiplexing approach based on a parallel lighting configuration -our system can achieve 0.12ms per source per wavelength and up to 14Hz sampling rate ...
Acknowledgments This research was funded in part by an NIH grant (R01 NS069848), and by the J. Crayton Pruitt Family Endowment. ...
doi:10.1364/ao.51.003461
pmid:22695584
pmcid:PMC3553592
fatcat:5r7t6i7qnvehfeigbtqmkdli54
Airborne video systems for agricultural assessment
1991
Remote Sensing of Environment
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This paper reviews the status and development of airborne video imaging systems and their application for resource management, with special emphasis on agriculture. ...
The digitization and computer processing of video imagery has also been demonstrated. ...
Moreover, the electronic format of video data makes it compatible with microcomputer-based image processing systems, thus allowing for classification procedures similar to the ones used with satellite ...
doi:10.1016/0034-4257(91)90015-x
fatcat:boazamwxozhkbg2m5ecscvqcga
Magnetic resonance-guided near-infrared tomography of the breast
2004
Review of Scientific Instruments
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The design and implementation of a multispectral, frequency-domain near infrared tomography system is outlined, which operates in a MRI magnet for utilization of MR-guided image reconstruction of tissue ...
Photomultiplier tube detector gain levels are electronically controlled on a time scale of 200 ms, thereby allowing rapid switching of the source to locations around the tissue. ...
Absorption and reduced scattering coefficient ͑mm −1 ͒ reconstructions in (c) are obtained without utilizing the internal structure of (b). ...
doi:10.1063/1.1819634
fatcat:ekxprmwtzrbdlfdsd4qkyrv2em
Derivative analysis of hyperspectral oceanographic data
[chapter]
2009
Advances in Geoscience and Remote Sensing
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Changes in the thermal response of these systems are due to the silicon used for the arrays of detectors. ...
Derivative of hyperspectral data can yield more information than traditional analysis based on ratios of discrete spectral bands (multispectral approaches). ...
In practice, remote sensing is the stand-off collection through the use of a variety of devices for gathering information on a given object or area. ...
doi:10.5772/8316
fatcat:wdix5winhrhbxiempwup2bxvym
Multispectral Imaging and p-XRF for the Non-Invasive Characterization of the Anonymous Devotional Painting 'Maria Santissima delle Grazie' from Mirabella Imbáccari (Sicily, Italy)
2021
Heritage
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XRF spectrometry analysis is performed for the identification of the chemical elements constituting the pigments (inorganic chromophores). ...
Multispectral imaging techniques (IR Reflectography, UV-induced visible Fluorescence, X-ray) are carried out for the study of the execution technique, the identification of underlying remakes, sketch drawing ...
The authors want to thank in a special way the bishop Mons. Calogero Peri of the Caltagirone diocese for having granted the scientific investigations on the painting. ...
doi:10.3390/heritage4030131
fatcat:bev4m2tixfhdbnvjibemu2q7xe
Practical Applications of a Multisensor UAV Platform Based on Multispectral, Thermal and RGB High Resolution Images in Precision Viticulture
2018
Agriculture
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The applicability of a UAV platform to use RGB, multispectral and thermal sensors was tested for specific purposes in precision viticulture and was demonstrated to be a valuable tool for fast multipurpose ...
The intra-vineyard variability was assessed in terms of characterization of the state of vines vigor using a multispectral camera, leaf temperature with a thermal camera and an innovative approach of missing ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/agriculture8070116
fatcat:rijrfyxz5zaunbiqoljrj2muqm
A Combined Non-Destructive and Micro-Destructive Approach to Solving the Forensic Problems in the Field of Cultural Heritage: Two Case Studies
2021
Applied Sciences
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Overall, the benefits of on-site forensic investigations are multiple, including the potential to increase substantially the speed and efficacy of the criminal justice system. ...
The present paper shows data from the non-destructive and micro-destructive analysis of different artworks and objects provided by the Cosenza Carabinieri Unit for the Protection of Cultural Heritage and ...
Acknowledgments: We thank the Cosenza Carabinieri Unit for the Protection of Cultural Heritage and Anti-Counterfeiting (Calabria, Italy) that provided objects for the analysis. ...
doi:10.3390/app11156951
doaj:90ee86b279cb4a2789f1100880da5707
fatcat:edhslr5i55eurd2w7atuueudhu
Machine vision detection of pests, diseases, and weeds: A review
2020
Journal of Phytology
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Machine vision is a potential technique for surveillance of crop health which can pinpoint the geolocation of crop stress in the field. ...
Early statistics on crop health can hasten prevention strategies such as pesticide, fungicide applications to reduce the pollution impact on water, soil, and air ecosystems. ...
Multispectral and hyperspectral imaging systems [4] use the texture and color of the crops for problem identification. ...
doi:10.25081/jp.2020.v12.6145
fatcat:lbidocmc6rebdnjadeghwccbk4
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