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Tesis sobre el tema "Interactive volume visualization"

Autor: Grafiati

Publicado: 13 de julio de 2024

Última modificación: 31 de julio de 2025

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1

Yang, Jun. "Interactive volume queries in a 3D visualization system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ38421.pdf.

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2

ESPINHA, RODRIGO DE SOUZA LIMA. "INTERACTIVE VOLUME VISUALIZATION OF UNSTRUCTURED MESHES USING PROGRAMMABLE GRAPHICS CARDS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=6586@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>A visualização volumétrica é uma importante técnica para a exploração de dados tridimensionais complexos, como, por exemplo, o resultado de análises numéricas usando o método dos elementos finitos. A aplicação eficiente dessa técnica a malhas não-estruturadas tem sido uma importante área de pesquisa nos últimos anos. Há dois métodos básicos para a visualização dos dados volumétricos: extração de superfícies e renderização direta de volumes. Na primeira, iso-superfícies de um campo escalar são extraídas explicitamente. Na se

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3

Sondershaus, Ralf. "Multi resolution representations and interactive visualization of huge unstructured volume meshes." [S.l. : s.n.], 2007.

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4

Frishert, Willem Jan. "Interactive Visualization Of Large Scale Time-Varying Datasets." Thesis, Linköping University, Department of Science and Technology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-12283.

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<p>Visualization of large scale time-varying volumetric datasets is an active topic of research. Technical limitations in terms of bandwidth and memory usage become a problem when visualizing these datasets on commodity computers at interactive frame rates. The overall objective is to overcome these limitations by adapting the methods of an existing Direct Volume Rendering pipeline. The objective is considered to be a proof of concept to assess the feasibility of visualizing large scale time-varying datasets using this pipeline. The pipeline consists of components from previous research, which

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5

Campoalegre, Vera Lázaro. "Contributions to the interactive visualization of medical volume models in mobile devices." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/285166.

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With current medical imaging improvements, specialists are being able to obtain correct information of anatomical structures of the human organism. By using different image visualization techniques, experts can obtain suitable images for bones, soft tissues, bloodstream among others. Present algorithms generate images with better and better resolution and information accuracy. Medical doctors are being more familiarized with three-dimensional structures reconstructed from bi-dimensional images. As a result, hospitals are becoming interested in tele-medicine and tele-diagnostic solutions. Clien

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6

Vidholm, Erik. "Visualization and Haptics for Interactive Medical Image Analysis." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis Acta Universitatis Upsaliensis, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8409.

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7

Berg, Matthias, and Jonathan Grangien. "Implementing an Interactive Simulation Data Pipeline for Space Weather Visualization." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-162477.

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This thesis details work carried out by two students working as contractors at the Community Coordinated Modelling Center at Goddard Space Flight Center of the National Aeronautics and Space Administration. The thesis is made possible by and aims to contribute to the OpenSpace project. The first track of the work implemented is the handling of and putting together new data for a visualization of coronal mass ejections in OpenSpace. The new data allows for observation of coronal mass ejections at their origin by the surface of the Sun, whereas previous data visualized them from 30 solar radii o

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8

Huff, Rafael. "Recorte volumétrico usando técnicas de interação 2D e 3D." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2006. http://hdl.handle.net/10183/7385.

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A visualização de conjuntos de dados volumétricos é comum em diversas áreas de aplicação e há já alguns anos os diversos aspectos envolvidos nessas técnicas vêm sendo pesquisados. No entanto, apesar dos avanços das técnicas de visualização de volumes, a interação com grandes volumes de dados ainda apresenta desafios devido a questões de percepção (ou isolamento) de estruturas internas e desempenho computacional. O suporte do hardware gráfico para visualização baseada em texturas permite o desenvolvimento de técnicas eficientes de rendering que podem ser combinadas com ferramentas de recorte in

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9

Prauchner, João Luis. "Especificação de funções de transferência para visualização volumétrica." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2005. http://hdl.handle.net/10183/164626.

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Técnicas de visualização volumétrica direta são utilizadas para visualizar e explorar volumes de dados complexos. Dados volumétricos provêm de diversas fontes, tais como dispositivos de diagnóstico médico, radares de sensoriamento remoto ou ainda simulações científicas assistidas por computador. Um problema fundamental na visualização volumétrica é a especificação de Funções de Transferência (FTs) que atribuem cor e opacidade aos valores escalares que compõem o volume de dados. Essas funções são importantes para a exibição de características e objetos de interesse do volume, porém sua definiçã

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10

Armstrong, Christopher J. "Live Surface." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1029.

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Live Surface allows users to segment and render complex surfaces from 3D image volumes at interactive (sub-second) rates using a novel, Cascading Graph Cut (CGC). Live Surface consists of two phases. (1) Preprocessing for generation of a complete 3D watershed hierarchy followed by tracking of all catchment basin surfaces. (2) User interaction in which, with each mouse movement, the 3D object is selected and rendered in real time. Real-time segmentation is ccomplished by cascading through the 3D watershed hierarchy from the top, applying graph cut successively at each level only to catchment ba

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11

Bubník, Václav. "Vizualizace a modelování molekul a krystalů." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235447.

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Aplikace pro vizualizaci a modelování molekul nejsou dosud příliš poznamenány současným hardware vyvinutým pro potřeby počítačových her. Cílem projektu je navrhnout intuitivní rozhraní s novými widgety specializovanými na atomové struktury a vizualizací využívající moderní hardware grafických karet. Důležitou částí je také dosažení vysoké přesnosti modelování, obvykle dostupné pouze u profesionálních CAD programů.

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12

Meyer-Spradow, Jennis, Timo Ropinski, Jörg Mensmann, and Klaus Hinrichs. "Interactive Design and Debugging of GPU-based Volume Visualizations." Linköpings universitet, Medie- och Informationsteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92878.

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There is a growing need for custom visualization applications to deal with the rising amounts of volume data to be analyzed in fields like medicine, seismology, and meteorology. Visual programming techniques have been used in visualization and other fields to analyze and visualize data in an intuitive manner. However, this additional step of abstraction often results in a performance penalty during the actual rendering. In order to prevent this impact, a careful modularization of the required processing steps is necessary, which provides flexibility and good performance at the same time. In th

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13

Alexandre-Barff, Welcome. "Architecture out-of-core basée GPU pour de la visualisation interactive de séries temporelles de données AMR." Electronic Thesis or Diss., Reims, 2024. http://www.theses.fr/2024REIMS005.

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Ce manuscrit présente une approche de scalabilité pour de la visualisation in-téractive de série temporelle de Maillages à Raffinement Adaptatif (AMR) massives. Nouspouvons définir une donnée AMR comme un format de quadrillage dynamique de cellulesraffinées hiérarchiquement à partir d’un domaine de calcul décrit dans cette étude commeune grille cartésienne régulière. Cette caractéristique adaptative est essentielle pour suivredes phénomènes évolutifs dépendant du temps et fait du format AMR une représentationessentielle pour la simulation numérique 3D. Cependant, la visualisation des données d

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14

Laha, Bireswar. "Immersive Virtual Reality and 3D Interaction for Volume Data Analysis." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/51817.

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This dissertation provides empirical evidence for the effects of the fidelity of VR system components, and novel 3D interaction techniques for analyzing volume datasets. It provides domain-independent results based on an abstract task taxonomy for visual analysis of scientific datasets. Scientific data generated through various modalities e.g. computed tomography (CT), magnetic resonance imaging (MRI), etc. are in 3D spatial or volumetric format. Scientists from various domains e.g., geophysics, medical biology, etc. use visualizations to analyze data. This dissertation seeks to improve effect

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15

He, Changming. "Volume Visualization in Projection-Based Virtual Environments: Interaction and Exploration Tools Design and Evaluation." Thesis, Griffith University, 2011. http://hdl.handle.net/10072/367768.

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Examples of volume data include medical scanned data such as CT and MRI data, seismic survey data, and computational fluid dynamic (CFD) data, etc. To better understand volumetric datasets, people use computer hardware and software to manipulate the data and generate 2D projections for viewing; this process is called volume visualization. Much research on volume visualization has been focused on volume rendering (how to render larger sets of data faster with a higher level of realism) or transfer function generation (how to highlight the regions of interest). To help improve the efficiency and

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16

de, Ruiter Niels Johannes Antonius. "GPU Accelerated Intermixing as a Framework for Interactively Visualizing Spectral CT Data." Thesis, University of Canterbury. Centre of Bioengineering, 2011. http://hdl.handle.net/10092/5328.

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Computed Tomography (CT) is a medical imaging modality which acquires anatomical data via the unique x-ray attenuation of materials. Yet, some clinically important materials remain diﬃcult to distinguish with current CT technology. Spectral CT is an emerging technology which acquires multiple CT datasets for speciﬁc x-ray spectra. These spectra provide a ﬁngerprint that allow materials to be distinguished that would otherwise look the same on conventional CT. The unique characteristics of spectral CT data motivates research into novel visualization techniques. In this thesis, we aim to provid

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17

Coninx, Alexandre. "Visualisation interactive de grands volumes de données incertaines : pour une approche perceptive." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00749885.

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Les études scientifiques et d'ingénierie actuelles font de plus en plus souvent appel à des techniques de simulation numérique pour étudier des phénomènes physiques complexes. La visualisation du résultat de ces simulations sur leur support spatial, souvent nécessaire à leur bonne compréhension, demande la mise en place d'outils adaptés, permettant une restitution fidèle et complète de l'information présente dans un jeu de données. Une telle visualisation doit donc prendre en compte les informations disponibles sur la qualité du jeu de données et l'incertitude présente. Cette thèse a pour but

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18

Jakobsson, Elvis. "Topology-guided analysis and visualization of charge density fields." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-157771.

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Direct volume rendering techniques for scalar fields make use of transfer functions to map optical properties to the field; the field can subsequently be visualized through the drawing of isosurfaces in the volume spanned by the field. The utility of this approach is limited in the case of nested or clustered structures with the same isovalue and further does not easily allow for quantitative measurements of the visualized data. This report explores the use of topological structures (contour trees and Morse-Smale complexes) as an augmentation of traditional direct volume rendering and describe

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19

Sarton, Jonathan. "Visualisations interactives haute-performance de données volumiques massives : une approche out-of-core multi-résolution basée GPUs." Thesis, Reims, 2018. http://www.theses.fr/2018REIMS022/document.

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Les travaux de cette thèse s'inscrivent dans le cadre du projet PIA2 3DNeuroSecure. Ce dernier vise à proposer un système collaboratif de navigation multi-échelle interactive dans des données visuelles massives (Visual Big Data) ayant pour cadre applicatif l'imagerie biomédicale 3D ultra-haute résolution (ordre du micron) possiblement multi-modale. En outre, ce système devra être capable d'intégrer divers traitements et/ou annotations (tags) au travers de ressources HPC distantes. Toutes ces opérations doivent être envisagées sans possibilité de stockage complet en mémoire (techniques out-of-c

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20

"Interactive volume visualization in a virtual environment." 1998. http://library.cuhk.edu.hk/record=b5889659.

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by Yu-Hang Siu.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1998.<br>Includes bibliographical references (leaves 74-80).<br>Abstract also in Chinese.<br>Abstract --- p.iii<br>Acknowledgements --- p.v<br>Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Volume Visualization --- p.2<br>Chapter 1.2 --- Virtual Environment --- p.11<br>Chapter 1.3 --- Approach --- p.12<br>Chapter 1.4 --- Thesis Overview --- p.13<br>Chapter 2 --- Contour Extraction --- p.15<br>Chapter 2.1 --- Concept of Intelligent Scissors --- p.16<br>Chapter 2.2 --- Dijkstra's Algorithm --- p.18<br>Chapter

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21

Graham, Jason. "Implementation of an interactive volume visualization system using commodity hardware." 2009. http://digital.library.okstate.edu/etd/Graham_okstate_0664M_10470.pdf.

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22

Pey-Wu, Lee, and 李佩武. "An Interactive 3-D Volume Visualization System in a Distributed onment." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/54538685679100826184.

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23

Morse, PEL. "Interactive visualization for data inference in the geosciences." Thesis, 2021. https://eprints.utas.edu.au/37909/1/Morse_whole_thesis.pdf.

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Visual displays are a formidable means of conveying information to the human brain. They facilitate the formation of scientific knowledge about the physical world, based on underlying observations of diverse kinds, through representations that are understood by practitioners of the relevant discipline area. Such data visualizations are critical in the geosciences given the need to draw meaning from time-varying, spatial or volumetric data, and given the increasing size of the datasets available for analysis of the natural, physical world. The research described in this thesis aims to apply a

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24

Hollt, Thomas. "Visual Workflows for Oil and Gas Exploration." Diss., 2013. http://hdl.handle.net/10754/287324.

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The most important resources to fulfill today’s energy demands are fossil fuels, such as oil and natural gas. When exploiting hydrocarbon reservoirs, a detailed and credible model of the subsurface structures to plan the path of the borehole, is crucial in order to minimize economic and ecological risks. Before that, the placement, as well as the operations of oil rigs need to be planned carefully, as off-shore oil exploration is vulnerable to hazards caused by strong currents. The oil and gas industry therefore relies on accurate ocean forecasting systems for planning their operations. This

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25

Sondershaus, Ralf [Verfasser]. "Multi resolution representations and interactive visualization of huge unstructured volume meshes / vorgelegt von Ralf Sondershaus." 2008. http://d-nb.info/988262266/34.

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26

Brainerd, Jeffrey Pigeon. "Interactive map projections and distortion visualization." Diss., 1998. http://catalog.hathitrust.org/api/volumes/oclc/40356530.html.

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27

Gastelum, Cristhopper Jacobo Armenta. "Volume Visualization and Compositing on Large-Scale Displays Using Handheld Touchscreen Interaction." Thesis, 2011. http://hdl.handle.net/10754/209369.

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Advances in the physical sciences have progressively delivered ever increasing, already extremely large data sets to be analyzed. High performance volume rendering has become critical to the scientists for a better understanding of the massive amounts of data to be visualized. Cluster based rendering systems have become the base line to achieve the power and flexibility required to perform such task. Furthermore, display arrays have become the most suitable solution to display these data sets at their natural size and resolution which can be critical for human perception and evaluation. The w

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28

Bedrosian, James. "Design robustness system development of a graphical, user-interactive software tool for visualization of system design robustness /." 2003. http://catalog.hathitrust.org/api/volumes/oclc/52700589.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2003.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 145-146).

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