Search results for "Three-Dimensional"

showing 10 items of 370 documents

Deepening Inside the Pictorial Layers of Etruscan Sarcophagus of Hasti Afunei: An Innovative Micro-Sampling Technique for Raman/SERS Analyses

2019

The Hasti Afunei sarcophagus is a large Etruscan urn, made up of two chalky alabaster monoliths. Dated from the last quarter of the third century BC, it was found in 1826 in the small town of Chiusi (Tuscany- Il Colle place) by a landowner, Pietro Bonci Casuccini, who made it part of his private collection. The noble owner&rsquo

pictorial layerSmall townmedia_common.quotation_subjectPharmaceutical ScienceColor02 engineering and technologyengineering.materialmadder lakeSpectrum Analysis Raman01 natural sciencesArticlesarcophagusSERS analysesAnalytical Chemistrylcsh:QD241-441Egyptian bluechemistry.chemical_compoundImaging Three-Dimensionallcsh:Organic chemistryDrug Discoverymicrosampling techniquepictorial layer; Etruscan; sarcophagus; SERS analyses; Egyptian blue; madder lake; microsampling techniquePhysical and Theoretical ChemistryIconographyColoring Agentsmedia_common010401 analytical chemistryOrganic ChemistrySettore CHIM/06 - Chimica OrganicaArt021001 nanoscience & nanotechnologyArchaeology0104 chemical sciencesCultural heritageAlabasterchemistryArchaeologyItalyChemistry (miscellaneous)Egyptian blueMicro samplingengineeringMolecular MedicineMicrotechnologyPrivate collectionSarcophagus0210 nano-technologyEtruscanSarcophaguMolecules
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Active lighting applied to three-dimensional reconstruction of specular metallic surfaces by polarization imaging

2006

International audience; In the field of industrial vision, the three-dimensional inspection of highly reflective metallic objects is still a delicate task. We deal with a new automated three-dimensional inspection system based on polarization analysis. We first present an extension of the shape-from-polarization method for dielectric surfaces to metallic surfaces. Then, we describe what we believe to be a new way of solving the ambiguity concerning the normal orientation with an active lighting system. Finally, applications to shape-defect detection are discussed, and the efficiency of the system to discriminate defects on specular metallic objects made by stamping and polishing is presente…

polarization imagingComputer scienceMaterials Science (miscellaneous)Polishing02 engineering and technologyDielectric[ INFO.INFO-CV ] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]01 natural sciencesIndustrial and Manufacturing EngineeringPhotometry010309 opticsImaging Three-DimensionalOptics[INFO.INFO-CV] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]Image Interpretation Computer-AssistedMaterials Testing0103 physical sciences0202 electrical engineering electronic engineering information engineeringScattering RadiationSpecular reflectionBusiness and International Managementactive lightingLightingScatteringbusiness.industry[INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]Equipment DesignStampingFresnel equationsPolarization (waves)metallic surfacesEquipment Failure AnalysisMetals020201 artificial intelligence & image processingMicroscopy PolarizationbusinessRefractive indexAlgorithmsshape from polarization
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Use of ethnic humor in modern stand-up comedy

2012

stereotypesstand-up comedythree-dimensional model of discoursevitsitstand up -komiikkacritical discourse analysisDiskurssianalyysiethnic humorstereotypiathuumorietnisyysjoke relationshipkoomikot
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Interface Detection Using a Quenched-Noise Version of the Edwards-Wilkinson Equation

2015

We report here a multipurpose dynamic-interface-based segmentation tool, suitable for segmenting planar, cylindrical, and spherical surfaces in 3D. The method is fast enough to be used conveniently even for large images. Its implementation is straightforward and can be easily realized in many environments. Its memory consumption is low, and the set of parameters is small and easy to understand. The method is based on the Edwards-Wilkinson equation, which is traditionally used to model the equilibrium fluctuations of a propagating interface under the influence of temporally and spatially varying noise. We report here an adaptation of this equation into multidimensional image segmentation, an…

ta113Image segmentationta114DiscretizationInterface (Java)Computer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONobject detectionimage edge detectionImage segmentationComputer Graphics and Computer-Aided DesignGrayscaleGray-scaleObject detectionSurface topographyNoiseMathematical modelThree-dimensional displaysSegmentationTomography3D image processingNoiseSurface morphologyAlgorithmSoftwareIEEE Transactions on Image Processing
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BioImageXD: an open, general-purpose and high-throughput image-processing platform

2012

BioImageXD puts open-source computer science tools for three-dimensional visualization and analysis into the hands of all researchers, through a user-friendly graphical interface tuned to the needs of biologists. BioImageXD has no restrictive licenses or undisclosed algorithms and enables publication of precise, reproducible and modifiable workflows. It allows simple construction of processing pipelines and should enable biologists to perform challenging analyses of complex processes. We demonstrate its performance in a study of integrin clustering in response to selected inhibitors.

ta113SIMPLE (military communications protocol)Computer sciencebusiness.industryta1182Computational BiologyImage processingCell BiologyBioinformaticsBiochemistryVisualizationHigh-Throughput Screening AssaysUser-Computer InterfaceSoftwareWorkflowImaging Three-DimensionalHuman–computer interactionbusinessCluster analysisMolecular BiologyThroughput (business)AlgorithmsSoftwareBiotechnologyGraphical user interfaceNATURE METHODS
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Il primo concorso per il Palazzo di Giustizia a Roma del 1884. Ricostruzione critica del progetto di Ernesto Basile

2019

1. Breve descrizione dell’oggetto di studio Il concorso del Palazzo di Giustizia di Roma si svolge in quattro fasi svolte tra il 1884 e il 1887. Il progetto per il primo concorso, del 1884, redatto dall’allora giovanissimo Ernesto Basile (Palermo 1857-1932), rivela una grande perizia progettuale che trasforma il complesso programma funzionale in un austero edificio in stile neofiorentino. I disegni originari dell’opera, non realizzata, conservati presso la Dotazione Basile del Dipartimento di Architettura dell’Università di Palermo, sono stati oggetto di studio propedeutico alle fasi di analisi, interpretazione e ricostruzione congetturale del modello digitale. 2. Stato dell’arte e riferime…

the spatiality of the great vestibule• elaboration of axonometric and perspective view• choice of interpretation criteria in case of project incongruitiethe vaulted arcades.the space of the main courtyard which Basile outlines in a sketch• elaboration of analytical drawings (modular functional compositional volumetric schemes)• modular study and flat vectorization• application of rendering techniques consistent with the available information. 4. Objectives pursued and achieved Conjectural reconstruction achieved the following results: • formulation of analytical documents which show how the planimetric and altimetric articulation are perfectly consistent with the functional program• definition of the level of uncertainty1. Brief description of the object of study The competition of the Palace of Justice in Rome takes place in four phases between 1884 and 1887. The project for the first competition in 1884 drawn up by the then very young Ernesto Basile (Palermo 1857-1932) reveals a great deal of design expertise that transforms the complex functional program into an austere building in neo-florentine style. The original drawings of the building not realized kept in the Basile Endowment of the Department of Architecture of the University of Palermo have been the subject of preliminary study to the phases of analysis interpretation and conceptual reconstruction of the digital model. 2. State of the art and main bibliographical references The conjectural reconstruction on the basis of drawings and archival documents is a well-established and codified practice thanks to various disciplinary contributions at national and international level. See: F. I. Apollonio Classification Schemes for Visualization of Uncertainty in Digital Hypothetical Reconstruction in M. Sander P. Mieke P. Kuroczyński M. Ioannides 3D Research Challenges in Cultural Heritage II Cham (CH) 2016. G. Antista M. Cannella Ricostruire. Architettura - Storia – Rappresentazione Palermo 2015. For studies related to the examinated project see: E. Mauro E. Sessa I disegni della Collezione Basile Roma 2015. E. Sessa Ernesto Basile. Dall'eclettismo Classicista al Modernismo Palermo 2002. 3. Definition of the methodologies adopted in the research Methodological phases: • historical analysi• survey of the original drawings and dimensional verification of the flat scanSettore ICAR/17 - Disegno• construction of perspective views deduced from the original drawings that highlight: the volumetric hierarchy and the function of the bugnate in the scanning of the masonry ma• three-dimensional modeling
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On the effectiveness of numerical simulation in the prediction of profile distorsion in extrusion

2005

three-dimensional extrusion numerical simulations die alignment
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Confocal laser scanning microscopy for the study of the morphological changes of the postextraction sites

2012

A better understanding of the remodeling process of postextraction sockets is essential in dental treatment planning. The aim of this study was to evaluate whether confocal laser scanning microscopy (CLSM) can be applied to imaging contour changes of postextraction sites, as well as to its quantification with image analysis of obtained three-dimensional images. This work describes a new application of the CLSM technique. The system used was the OLS3100-USS, LEXT model (Olympus((R))). CLSM was used for the surface analysis of the extraction site. The measurements taken with CLSM were: (1) mesio-distal distance, (2) alveolar ridge thickness, and (3) vestibular and lingual alveolar ridge heigh…

tooth extractionMicroscopy ConfocalHistologyMaterials sciencebusiness.industryfungiDentistryalveolar changesStatistics NonparametricINGENIERIA QUIMICAsocket healingMedical Laboratory TechnologyImaging Three-DimensionalExtraction siteAlveolar ProcessConfocal laser scanning microscopyAlveolar ridgeHumansTooth SocketAnatomybusinessCLSMInstrumentationBiomedical engineeringMicroscopy Research and Technique
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Characterization of three-dimensional microstructure of composite materials by X-ray tomography

2016

Analysis methods for X-ray microtomographic images of short fibre composite materials were developed. The methods enable estimation of microstructural properties of the material, e.g., aspect ratio and orientation of fibres. Being based on X-ray microtomography and image analysis, the methods are nondestructive and do not require user intervention. In particular, a method for determination of the aspect ratio of fibres was first developed. The method contains an assumption about similarity of the shape of the fibres. The assumption was relaxed in an improved method that can estimate cross-sectional properties of fibres, too, e.g., cross-sectional area. Additionally, the effect of finite ima…

wood fibreskuidutröntgentutkimusComposite materialskuvankäsittelyImage analysismikrorakenteetmateriaalitutkimuskuvantaminenImage processingtomografiaX-raysThree-dimensional imagingFibrous composites3D-mallinnusTomographykomposiititbiomateriaalitbiomaterials
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Hydrogels for Three-Dimensional Ionizing-Radiation Dosimetry

2021

Radiation-sensitive gels are among the most recent and promising developments for radiation therapy (RT) dosimetry. RT dosimetry has the twofold goal of ensuring the quality of the treatment and the radiation protection of the patient. Benchmark dosimetry for acceptance testing and commissioning of RT systems is still based on ionization chambers. However, even the smallest chambers cannot resolve the steep dose gradients of up to 30–50% per mm generated with the most advanced techniques. While a multitude of systems based, e.g., on luminescence, silicon diodes and radiochromic materials have been developed, they do not allow the truly continuous 3D dose measurements offered by radiation-se…

xylenol-orangeMaterials sciencePolymers and Plasticspoly-vinyl alcoholScienceDose profileBioengineeringGeneral. Including alchemyReviewRadiation01 natural sciences030218 nuclear medicine & medical imagingIonizing radiationBiomaterials03 medical and health sciencesMagnetic resonance imaging0302 clinical medicineQD1-650103 physical sciencesthree-dimensional dosimetryDosimetryIrradiationQD1-999QD146-197Optical tomography010308 nuclear & particles physicsbusiness.industryOrganic ChemistryQpolyacrylamide gelChemistrySpectrophotometryAbsorbed doseglutaraldehydeRadiation protectionLuminescencebusinessInorganic chemistryBiomedical engineeringferrous sulfateGels
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