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Dissertations / Theses on the topic 'Pigment analysis'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Rogers, David. "CIS-REGULATORY ANALYSIS OF THE PIGMENT CELL DIFFERENTIATION GENE POLYKETIDE SYNTHASE." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2701.

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The analysis of Gene Regulatory Networks (GRNs) is essential to understanding the complete process of embryo development. Elucidating every gene regulatory circuit from maternal regulatory inputs all the way to the activation of differentiation gene batteries is an important step in increasing our understanding of developmental biology. In this work I study the cis-regulatory architecture of a pigment cell differentiation gene, polyketide synthase (SpPks) in the sea urchin Strongylocentrotus purpuratus. SpPks encodes an enzyme that is responsible for the biosynthesis of the sea urchin pigment

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2

Ebadati, Nasrollah D. "Characterization of the Pigment-Protein Complex in Corynebacterium Poinsettiae." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc798269/.

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The purpose of this study was to completely characterize the protein moiety in the caroteno complex in C. poinsettae, determine if the distribution and level of protein in the pigment-protein complex in membranes of the wild type and in a colorless mutant could account for the differences in the stability of the membrane, and to determine if this protein is common to other pigmented and non-pigmented organisms. Also, electron microscopy of cell membranes of C. poinsettiae which had been exposed to gold-labelled antibody against the protein moitey of the pigment-protein complex, demonstrating t

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3

Zhao, Yonghui. "Image segmentation and pigment mapping of cultural heritage based on spectral imaging /." Online version of thesis, 2008. http://hdl.handle.net/1850/7050.

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4

Paraoan, Luminita. "Analysis of cDNA libraries and expressed sequence tags of retinal pigment epithelial cells." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367080.

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5

Colanesi, Sarah. "A chemico-genetic analysis of pigment pattern formation in the zebrafish mutant parade." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558856.

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Pigment patterns of zebrafish are a beautiful example in which to study key processes of vertebrate development such as neural crest cell migration and patterning of neural crest-derived cell types. This can for example be achieved by characterizing mutants like parade in which pigment cell development is abnormal. Here, we present a chemico-genetic study of the pigment pattern mutant parade; uniquely, this mutant displays ectopic pigment cells in the ventral medial pathway of the trunk but the characteristic stripe pattern of zebrafish embryos is unaffected. Using a positional cloning approac

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6

Bovill, A. J. "Raman and soft x-ray studies of selected pigments." Thesis, University of Strathclyde, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381122.

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7

Klesner, Catherine Elizabeth, and Catherine Elizabeth Klesner. "Reverse Engineering of Corinthian Pigment Processing and Firing Technologies on Archaic Polychrome Ceramics." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625903.

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Decorative, polychrome ceramics from Corinth, Greece, produced during the 8th-6th centuries B.C.E. are luxury goods that were widely traded throughout Greece and the Mediterranean. The decorated ceramics were produced in a variety of shapes, including aryballos, alabastron, and olpe. They were decorated with slip-glazes in distinctive white, black, red, yellow, and purple colors, and in a variety of surface finishes, matte, semi-matte and glossy. Artisans in Corinthian workshops experimented to change the colors of the slips by varying the type and amount of iron-rich raw materials. They also

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8

Walsh, Amy. "Synthesis and analysis of poly(methacrylic acid-co-benzyl methacrylate) copolymers for stable aqueous pigment dispersions." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/6457/.

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9

Pilgrim, Matthew. "High-resolution imaging and molecular analysis of sub-retinal pigment epithelial deposits associated with age-related macular degeneration." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10060669/.

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Drusen and Basal linear deposits are hallmark features of early and intermediate age-related macular degeneration (AMD). These extracellular deposits accumulate between the basal lamina of the RPE and the inner collagenous layer of Bruch's membrane. They contain proteins, lipids, trace metals and mineral constituents. While early AMD is not typically accompanied with vision loss, it is likely to initiate the pathological processes leading to blindness in the elderly. Understanding how early stage AMD is initiated could enable the development of novel treatment strategies that might delay/preve

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10

Krainz, Thomas Edward. "An Analysis of Heat Shock Protein Production in Human Retinal Pigment Epithelial Cells After Different Stress-Induced States." Walsh University Honors Theses / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=walshhonors1524248740945083.

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11

Kottler, Verena [Verfasser], and Christine [Akademischer Betreuer] Dreyer. "Pigment cell organization and genetic analysis of color pattern formation in the guppy (Poecilia reticulata) / Verena Kottler ; Betreuer: Christine Dreyer." Tübingen : Universitätsbibliothek Tübingen, 2015. http://d-nb.info/1197058036/34.

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12

Yu, Jie. "Classification of Genotype and Age of Eyes Using RPE Cell Size and Shape." Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/math_theses/118.

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Retinal pigment epithelium (RPE) is a principal site of pathogenesis in age-related macular de-generation (AMD). AMD is a main source of vision loss even blindness in the elderly and there is no effective treatment right now. Our aim is to describe the relationship between the morphology of RPE cells and the age and genotype of the eyes. We use principal component analysis (PCA) or functional principal component method (FPCA), support vector machine (SVM), and random forest (RF) methods to analyze the morphological data of RPE cells in mouse eyes to classify their age and genotype. Our analyse

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13

Gopalakrishnan, Pradeep. "Influence of Laser Parameters on Selective Retinal Photocoagulation for Macular Diseases." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1121436799.

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14

Cerevatova, Kristina. "Studium částic různých kosmetických pigmentů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2020. http://www.nusl.cz/ntk/nusl-433150.

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The main focus areas of this master thesis include the writing of a literature review, which contains an overview and segregation of pigments which are used in the preparation of cosmetic products. The thesis is focused on the properties and characterization of pigments for use in cosmetology. The following focus is on legislation, more specifically on pigments that the cosmetic industry allows, limits and does not allow. The main part of this thesis is an overview of methods for the characterization of pigments. The practical part deals with the characterization of particles of selected cosme

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15

Tuglu, Mehmet Ibrahim. "Analysis of the behaviour of retinal pigment epithelial (RPE) cells in relation to their maintenance in the epithelium during development of the chick eye." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480920.

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16

Binant, Corinne. "Etude par microspectrometries electroniques et vibrationnelles d'une famille de pigments : les quinacridones, application a l'analyse d'echantillon de peintures industrielles." Paris 6, 1988. http://www.theses.fr/1988PA066084.

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En vue d'identifier les constituants d'un microechantillon de peinture, on a cherche a mettre en evidence par spectrometrie electronique et vibrationnelle les caracterististiques analytiques et structurales de six pigments rouges derives de la quinacridone, utilises dans les peintures pour automobiles. Les spectres d'adsorption electronique et ir et d'emission de fluorescence montrent que les modifications tinctoriales de ces composes dependent des interactions intermoleculaires plutot que de la nature du substituant. Les donnees spectroscopiques (preresonance raman et ir) permettent de precis

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17

SASANI, Anahita. "Material and Technical Analysis of Armenian Wall Paintings in New Julfa, Isfahan." Doctoral thesis, Università degli studi di Ferrara, 2015. http://hdl.handle.net/11392/2389079.

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The 17th century is the time of new changes in Iranian relationship with the West and especially European countries. In that era, Armenian merchants, were one of the main channels for bringing European art styles, in particular, paintings to Iranian culture. Although many of such paintings and art works deteriorated during the last century due to the waves of modernization in Iran, some of them are preserved in Armenian churches and houses in New Julfa of Isfahan. Reliable historical sources refer to some Armenian buildings in New Julfa which decorated with both oriental and European art work

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18

Freni, Valentina. "Apport de l'imagerie scientifique à la caractérisation des pigments des œuvres du peintre orientaliste Etienne Dinet." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS261.

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Au cours de cette recherche, nous avons contribué à l’étude et à la caractérisation des pigments utilisés par le peintre français Étienne Dinet à l’aube du XXe siècle. Notre approche a consisté à nous appuyer sur les manuels de peinture écrits par le peintre (Les fléaux de la peinture) dans lesquels il expose sa recherche des matériaux à utiliser en peinture. En nous basant sur ces écrits, nous avons créé une base de données de photographies scientifiques et de spectres de réflectance (visible et proche infrarouge) pour pouvoir déterminer les pigments employés dans ses tableaux. Sept tableaux

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19

Hassan, Nik. "Vibrational spectroscopy in a forensic and archaeological context : forensic classification of biomaterials (ivory, bone, hair and fur) by Raman, FTIR, NIR spectroscopy using multivariate chemometrics analysis and the application of Raman spectroscopy for bioarchaeological degradaation and pigment analysis." Thesis, University of Bradford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681237.

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20

Kader, Farid. "Analyse des transformations oxydasiques (PPO, POD) responsables du brunissement et de la dégradation des pigments anthocyaniques des jus de bluet (Vaccinium corymbosum, L. ) : caractéristiques des principaux constituants du fruit : importance de la contribution des intermédiaires quinoniques." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL131N.

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Dans une première partie, nous nous sommes penchés sur la caractérisation des principaux constituants du fruit de bluet (Vaccinium cortymbosum) afin d'établir la carte d'identité biochimique des acides carboxyliques, sucres simples, protéines, pectines, constituants d'arome, composés phénoliques (anthocyanines, phénols simples, esters et hétérosides phénoliques), cations ainsi que des activités enzymatiques: invertase, sucrose synthase, sucrose phosphate synthase. Ces résultats devraient aider à une meilleure maitrise des transformations technologiques des fruits. La manifestation d'une compos

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21

Vanderbloemen, Lisa Anne. "Satellite analysis of temporal and spatial chlorophyll patterns on the West Florida shelf (1997-2003)." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001749.

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22

Poon, Kelvin Weng Chun. "In situ chemical analysis of tattooing inks and pigments : modern organic and traditional pigments in ancient mummified remains." University of Western Australia. Centre for Forensic Science, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0257.

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At various points in human history, tattooing has been ubiquitous on almost every continent on Earth, used for reasons of aestheticism, religious beliefs or for social purposes. To study the art of tattooing with respect to a particular culture, one must always be critical to any references to the practice (written, pictorial or artefactual) due to issues of translation and misinterpretation. Complete verification may only come with the discovery of actual tattooed human remains. In combination with artefactual and anthropological evidence, these remains not only provide physical proof of the

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23

Goetz, Elaine R. "Sustainable Treatments of Acid Mine Drainage." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1449062616.

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24

Boyce, Geraldine. "Electron crystallography of organic pigments." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340747.

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25

Costa, Cicero Teixeira Silva. "Crescimento, pigmentos fotossintéticos e produtividade de cana-de-açúcar (Saccharum sp.), no quarto ciclo de cultivo." Universidade Federal de Alagoas, 2009. http://repositorio.ufal.br/handle/riufal/226.

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The sugarcane (Saccharum officinarum L.) is a species adapted to the tropical climatic conditions and has been presenting fundamental function in the economical development in the Southeast and Northeast regions of the Brasil. The adaptation capacity of the culture to the different cultivation environment can be evaluated through the growth analysis, from the physiologic answers and of the biological and economical production. Thus, the objective of the present work was to evaluate the growth, leaf pigment photosynthetic and yield of four sugarcane varieties (RB92579, SP79-1011, RB931530 and R

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26

Hu, Xingxue. "Analyses of Effects of Pigments on Maxillofacial Prosthetic Material." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275076148.

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27

Bickelmann, Constanze. "Visual pigment evolution and the paleobiology of early mammals." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16354.

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Auf der Basis von Fossilien wird angenommen, dass die ersten Säugetiere nachtaktiv waren. Diese Arbeit untersucht diese Hypothese mit bioinformatischen und molekularbiologischen Techniken. Der Fokus liegt auf dem Rhodopsin, ein Sehpigment im Wirbeltierauge, das für Sehen unter schlechten Lichtverhältnissen verantwortlich ist. Zunächst wurde das Rhodopsin der monotrematen Echidna, einem basalen Säugetier, sequenziert und mit zwei Mutanten mit Mutationen an Positionen 158 und 169 in vitro exprimiert. Die biochemische und funktionelle Charakterisierung ergab, dass das Echidna-Rhodopsin farbpigmen

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28

Hatchwell, Eli. "Analysis of X-autosome translocations associated with incontinentia pigmenti type 1." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239340.

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29

Saesaengseerung, Neungrutai. "High-throughput methods for the analysis of pigments in aquatic sediments." Thesis, University of York, 2013. http://etheses.whiterose.ac.uk/4036/.

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High-throughput methods for the analysis of complex mixtures of sedimentary pigments have been developed by improving the efficiency and speed of pigment extraction and chromatographic analysis. A method for the routine and automated extraction of highly sensitive chlorin pigments from sediments has been developed and compared with the widely used method of sonic extraction. Pigments were identified by high performance liquid chromatography with on-line photodiode array detection and multistage tandem mass spectrometry. The efficacy and integrity of accelerated solvent extraction (ASE) varies

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30

Mahajanam, Sudhakar P. V. "Application of hydrotalcites as corrosion-inhibiting pigments in organic coatings." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1123787459.

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31

Moura, Cláudia de Andrade. "Caracterização e aplicação da casca residual do processamento da jabuticaba." Universidade Estadual do Oeste do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/2725.

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A jabuticabeira (Plinia sp.) é uma espécie nativa que se encontra amplamente distribuída em quase todas as regiões brasileiras. Recentemente, diferentes frutos nativos, entre eles a jabuticaba, têm sido alvo de pesquisa para investigar o melhor aproveitamento de suas propriedades nutricionais. Com perspectivas de trazer novas alternativas para o melhor aproveitamento de subprodutos agroindustriais que tenham propriedades nutritivas e funcionais, pesquisadores estão buscando o desenvolvimento de produtos inovadores e funcionais (bioativos). Por esse viés, este trabalho objetivou avaliar se di

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32

Immerstrand, Charlotte. "Biophysical studies of pigment transport in frog melanophores : impedance measurements and advanced microscopy analyses /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/med803s.pdf.

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33

Burgio, Lucia. "Analysis of pigments on art objects by Raman microscopy and other techniques." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369123.

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34

Goodall, Rosemary A. "Non-destructive techniques for the analysis of pigments from an archaeological site." Thesis, Queensland University of Technology, 1997. https://eprints.qut.edu.au/36948/1/36948_Goodall_1997.pdf.

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The detennination of trade routes and social interactions has previously been undertaken using cultural records and archaeological trends. In many regions this infonnation is sparse or inconclusive. By provenancing materials such as the pigments used by Aboriginal artists the movement of materials in the past can be directly investigated. This study is an attempt to characterise and provenance the excavated pigments from Fem Cave, Chillagoe, Southeast Cape York Peninsula. Two techniques, Fourier transform infrared -photoacoustic spectroscopy and proton induced X-ray and gamma-ray emission sp

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35

Weerd, Jaap van der. "Microspectroscopic analysis of traditional oil paint." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2002. http://dare.uva.nl/document/85889.

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36

Ballantyne, Angela. "Photosynthetic pigments in sediments : development of applications in archaeology and compound-specific radiocarbon analysis." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/3321/.

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Photosynthetic pigments derived from oxygenic aquatic photoautotrophs are biosynthesised from dissolved carbon dioxide that reflects atmospheric concentrations of radiocarbon (14C). Sedimentary pigment signatures are not influenced by a terrestrial signal as terrestrial photosynthetic pigments are overwhelmingly destroyed by photo-oxidation. These properties have been exploited by this study to reveal the presence of archaeological water features and to radiocarbon date the timing of a geochemically significant event. A new approach for identifying archaeological structures suggested to repres

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37

Akyol, Ali Akin. "Material Characterization Of Ancient Mural Paintings And Related Base Materials: A Case Study Of Zeugma Archaeological Area." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611185/index.pdf.

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In this study, two sample sets from Zeugma Archaeological Area had been examined. The sample Set I includes 7 sediment, 18 stone, 4 brick/roof tile, 9 mortar, 4 plaster samples and the sample Set II consists of 24 mural painting samples. Samples were examined to get their raw material characteristics, mineralogical and chemical compositions, and microstructural properties using various analytical techniques such as Optical Microscopy, XRD, FTIR, PED-XRF, SEM-EDX and Raman Spectroscopy. In addition, mikroclimatic monitorings for temperature and relative humidity were also performed in that area

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38

Tuck, Jaclyn. "Quantitative analysis of neuropilin-2 expression in pigmented lesions and melanoma." Thesis, Boston University, 2012. https://hdl.handle.net/2144/12657.

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Thesis (M.A.)--Boston University<br>The prevalence of skin cancer has been continuously increasing in the American population over the last 3 decades. Melanoma, the most serious and dangerous form, causes the most skin cancer related deaths. If melanoma is found early enough, it can be treated and cured. Current therapy for melanoma is based on the stage of the disease. It is crucial to identify and treat the melanoma before metastasis occurs as the risk of death greatly increases once the disease becomes widespread. The processes of angiogenesis and lymphangiogenesis as well as changes in the

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39

Durako, Maris R. "A reassessment of Geminella (Chlorophyta) based upon photosynthetic pigments, DNA sequence analysis and electron microscopy /." Electronic version (PDF), 2007. http://dl.uncw.edu/etd/2007-1/durakom/marisdurako.pdf.

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40

Graham, Mark Douglas. "Omnivory and selective feeding by zooplankton along a lake production gradient, complementary ¹§5N isotope and gut pigment analyses." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0027/MQ30475.pdf.

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41

Dupuis, Guillaume. "Couleur de la matière picturale : caractérisation des pigments et des mélanges de pigments, effets induits par l'adjonction de liant et de charges." Phd thesis, Université Paris Sud - Paris XI, 2004. http://tel.archives-ouvertes.fr/tel-00010271.

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La spectroscopie de réflectance diffuse dans le domaine du visible est une technique paradoxalement rarement utilisée pour identifier les matériaux des couches picturales des oeuvres d'art. Quand elle est malgré tout mise en oeuvre, l'identification de pigments à partir de ce type de mesures repose toujours sur la comparaison avec une base de données spectrophotométriques de pigments de référence. Au sein du Centre de Recherche et de Restauration des Musées de France, la base de données est composée des spectres de réflectance de pigments purs, secs et en poudre. Une couche picturale est au co

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Stroede, Claire L. "Dynamic Force Delivery and Viscoelastic Properties of Pigmented Elastomeric Chains from One Manufacturer." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1302627429.

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Willemse, Chandre Monique. "Comprehensive two-dimensional liquid chromatographic analysis of anthocyanins." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96675.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Anthocyanins are naturally occurring pigments responsible for the colour of many natural products, including grapes and wine. These pigments are important to the food industry and have been recognised for their nutritional value since they play an important role in the reduced risk of various chronic diseases in humans. Anthocyanins also play an important role in the aesthetic perception and quality of red wine. However, due to the large structural diversity of grape-derived anthocyanins and the many derivatives formed from

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44

Pechamat, Laurent. "Impacts de l'oxygène sur les évolutions chimiques et sensorielles du vin rouge." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0355/document.

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L’impact de l’oxygène a été suivi pendant 4 mois pour 3 vins de Merlot d’IPT 61, 63 et 76. Le vin d’IPT 63 était enrichi par une fraction d’ellagitannins de bois de chêne. Les vins ont été ajustés à pH 3, pH 3,5 et pH 4. Pour chaque pH, des doses de 0, 2, 8 et 20 mg/L d’oxygène ont été fournies à l’aide d’oxygène pur, puis des analyses mensuelles ont permis de suivre les évolutions chimiques et sensorielles des vins afin d’apprécier les impacts liés à l’oxygène.Les résultats montrent pour tous les vins, que la consommation de l’oxygène augmente de 2 à 4 fois plus lorsque l’on passe de pH 3 à p

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45

Gueit, Éléonore. "Coloration superficielle du béton frais via l'agent de décoffrage : comparaison avec la technique de peinture à fresque." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00686903.

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La coloration d'un béton, matériau faiblement chromatique, est obtenue soit par introduction de pigments dans son volume, soit par application d'un revêtement coloré sur sa surface. Ces travaux de thèse s'intéressent à une voie de coloration alternative innovante, qui consiste à introduire les pigments dans l'agent de décoffrage aﬁn qu'ils soient transférés durablement vers la surface du béton frais au moment où celui-ci est coulé dans le coffrage. Cette méthode s'apparente beaucoup à la technique de peinture à fresque, qui a largement fait ses preuves en terme de durabilité. Dans un premier t

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Szczepanowska, Hanna M. "Living systems on heterogeneous cellular substrate : contribution to a better understanding of dynamic interfaces of fungal pigmentation and paper in biodeterioration of cultural heritage." Thesis, Ecully, Ecole centrale de Lyon, 2012. http://www.theses.fr/2012ECDL0031/document.

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La bio-détérioration des documents culturels compte parmi les types de détériorations les plus complexes que sont amenés à subir ces objets; et ce, parce qu’elle implique des organismes vivants ainsi que la conjonction de nombreux facteurs. Il existe différentes formes de biodétérioration; les taches de substrat (support?) engendrées par des champignons pigmentés en sont un exemple. Une multitude d’actions se développent aux “interfaces” entre le substrat (support?) et les champignons, depuis le premier contact avec les spores, en passant par la prolifération fongique, jusqu’aux interactions a

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47

González, Vidal Juan José. "Multivariate approach-based system for the automated interpretation of spectra : application to pigments identification through Raman spectroscopy in art analysis." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/460766.

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The application of spectroscopic techniques is crucial for art historians and conservators who require knowledge of materials used in works of art (pigments, dyes, binders, additives, ...) in particular instances. In this sense, the knowledge of pigments which were in use on the ancient artists' palettes is fundamental to preserve the art works. In addition, this knowledge is important to determine correct conservation approaches, to study degradation processes or authenticity-related issues. For instance, the proper interpretation of molecular signatures from a vibrational spectroscopy gives

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48

Shaheen, Islam. "Study of the most effective analysis procedures using multispectral imaging techniques on ancient egyptian painted objects." Master's thesis, Universidade de Évora, 2020. http://hdl.handle.net/10174/29337.

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Abstract:

Multispectral imaging (MSI) used as Initial studies to identify and study painted layers as a non-destructive method. The use of MSI to tentatively identify pigments has an important advantage justifying its application the rapid and low-cost survey of large areas.it is possible to tentatively identify some historical pigments and discover the invisible layers, painting and writing. By means of MSI performed with simplified equipment and without the aid of imaging analysis software. The two selected objects from the Grand Egyptian Museum collection were rich in pigments, first object is polych

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Pflanz, Michael. "A methodical approach for non-destructive estimation of plant pigments by means of remission spectroscopy applied in fruit and vegetable analyses." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2014. http://dx.doi.org/10.18452/17074.

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Abstract:

Anbaubegleitende spektral-optische Analysen direkt an der Pflanze haben zunehmend Bedeutung für die gartenbauliche Produktion. Veränderungen individueller Pflanzeninhaltsstoffe können mit Hilfe optischer Sensoren unmittelbar und beliebig oft erfasst werden, wodurch Pflanzenreaktionen auf veränderte Umgebungs- und Kulturbedingungen instrumentell messbar sind. Im Konzept eines Präzisionsgartenbau könnten diese zusätzlichen Informationen adaptiven Kulturmaßnahmen dienen und zur effizienten Nutzung von Ressourcen in der Produktion von Obst und Gemüse beitragen. Die wellenlängenspezifische Lich

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50

Zhou, Zhen Hao (Howard). "An exemplar-based approach to search-assisted computer-aided diagnosis of pigmented skin lesions." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37311.

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Over the years, exemplar-based methods have yielded significant improvements over their model-based counterparts in image synthesis applications. Notably, texture synthesis algorithms using an exemplar-based approach have shown success where traditional stochastic methods failed. As an illustrative example, I will present an exemplar-based approach that yields substantial benefits for user-guided terrain synthesis using Digital Elevation Models (DEMs). This success is realized through exploitation of structural properties of natural terrain. In addition to their proliferation in the image synt

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