3 Search Results for "Ertl, Thomas"

Document
DOI: 10.4230/DFU.Vol2.SciViz.2011.276
Interactive Isocontouring of High-Order Surfaces

Authors: Christian Pagot, Joachim Vollrath, Filip Sadlo, Daniel Weiskopf, Thomas Ertl, and João Luiz Dihl Comba

Published in: Dagstuhl Follow-Ups, Volume 2, Scientific Visualization: Interactions, Features, Metaphors (2011)

Abstract
Scientists and engineers are making increasingly use of hp-adaptive discretization methods to compute simulations. While techniques for isocontouring the high-order data generated by these methods have started to appear, they typically do not facilitate interactive data exploration. This work presents a novel interactive approach for approximate isocontouring of high-order data. The method is based on a two-phase hybrid rendering algorithm. In the first phase, coarsely seeded particles are guided by the gradient of the field for obtaining an initial sampling of the isosurface in object space. The second phase performs ray casting in the image space neighborhood of the initial samples. Since the neighborhood is small, the initial guesses tend to be close to the isosurface, leading to accelerated root finding and thus efficient rendering. The object space phase affects the density of the coarse samples on the isosurface, which can lead to holes in the final rendering and overdraw. Thus, we also propose a heuristic, based on dynamical systems theory, that adapts the neighborhood of the seeds in order to obtain a better coverage of the surface. Results for datasets from computational fluid dynamics are shown and performance measurements for our GPU implementation are given.
Cite as

Christian Pagot, Joachim Vollrath, Filip Sadlo, Daniel Weiskopf, Thomas Ertl, and João Luiz Dihl Comba. Interactive Isocontouring of High-Order Surfaces. In Scientific Visualization: Interactions, Features, Metaphors. Dagstuhl Follow-Ups, Volume 2, pp. 276-291, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

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@InCollection{pagot_et_al:DFU.Vol2.SciViz.2011.276,
  author =	{Pagot, Christian and Vollrath, Joachim and Sadlo, Filip and Weiskopf, Daniel and Ertl, Thomas and Comba, Jo\~{a}o Luiz Dihl},
  title =	{{Interactive Isocontouring of High-Order Surfaces}},
  booktitle =	{Scientific Visualization: Interactions, Features, Metaphors},
  pages =	{276--291},
  series =	{Dagstuhl Follow-Ups},
  ISBN =	{978-3-939897-26-2},
  ISSN =	{1868-8977},
  year =	{2011},
  volume =	{2},
  editor =	{Hagen, Hans},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DFU.Vol2.SciViz.2011.276},
  URN =		{urn:nbn:de:0030-drops-33052},
  doi =		{10.4230/DFU.Vol2.SciViz.2011.276},
  annote =	{Keywords: High-order finite elements, isosurface visualization, GPU}
}
Document
DOI: 10.4230/DagSemProc.08441.2
08441 Final Report – Emerging Uses and Paradigms for Dynamic Binary Translation

Authors: Erik Altman, Bruce R. Childers, Robert Cohn, Jack Davidson, Koen De Brosschere, Bjorn De Sutter, Anton M. Ertl, Michael Franz, Yuan Gu, Matthias Hauswirth, Thomas Heinz, Wei-Chung Hsu, Jens Knoop, Andreas Krall, Naveen Kumar, Jonas Maebe, Robert Muth, Xavier Rival, Erven Rohou, Roni Rosner, Mary Lou Soffa, Jens Troeger, and Christopher Vick

Published in: Dagstuhl Seminar Proceedings, Volume 8441, Emerging Uses and Paradigms for Dynamic Binary Translation (2009)

Abstract
Software designers and developers face many problems in designing, building, deploying, and maintaining cutting-edge software applications–reliability,security,performance,power,legacy code,use of multi-core platforms,and maintenance are just a few of the issues that must be considered. Many of these issues are fundamental parts of the grand challenges in computer science such as reliability and security.
Cite as

Erik Altman, Bruce R. Childers, Robert Cohn, Jack Davidson, Koen De Brosschere, Bjorn De Sutter, Anton M. Ertl, Michael Franz, Yuan Gu, Matthias Hauswirth, Thomas Heinz, Wei-Chung Hsu, Jens Knoop, Andreas Krall, Naveen Kumar, Jonas Maebe, Robert Muth, Xavier Rival, Erven Rohou, Roni Rosner, Mary Lou Soffa, Jens Troeger, and Christopher Vick. 08441 Final Report – Emerging Uses and Paradigms for Dynamic Binary Translation. In Emerging Uses and Paradigms for Dynamic Binary Translation. Dagstuhl Seminar Proceedings, Volume 8441, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{altman_et_al:DagSemProc.08441.2,
  author =	{Altman, Erik and Childers, Bruce R. and Cohn, Robert and Davidson, Jack and De Brosschere, Koen and De Sutter, Bjorn and Ertl, Anton M. and Franz, Michael and Gu, Yuan and Hauswirth, Matthias and Heinz, Thomas and Hsu, Wei-Chung and Knoop, Jens and Krall, Andreas and Kumar, Naveen and Maebe, Jonas and Muth, Robert and Rival, Xavier and Rohou, Erven and Rosner, Roni and Soffa, Mary Lou and Troeger, Jens and Vick, Christopher},
  title =	{{08441 Final Report – Emerging Uses and Paradigms for Dynamic Binary Translation}},
  booktitle =	{Emerging Uses and Paradigms for Dynamic Binary Translation},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{8441},
  editor =	{Bruce R. Childers and Jack Davidson and Koen De Bosschere and Mary Lou Soffa},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08441.2},
  URN =		{urn:nbn:de:0030-drops-18888},
  doi =		{10.4230/DagSemProc.08441.2},
  annote =	{Keywords: Dynamic binary translation, Virtual machines}
}
Document
DOI: 10.4230/DagSemRep.381
Scientific Visualization: Extracting Information and Knowledge from Scientific Data Sets (Dagstuhl Seminar 03231)

Authors: George-Pierre Bonneau, Thomas Ertl, and Gregory M. Nielson

Published in: Dagstuhl Seminar Reports. Dagstuhl Seminar Reports, Volume 1 (2021)

Abstract
Cite as

George-Pierre Bonneau, Thomas Ertl, and Gregory M. Nielson. Scientific Visualization: Extracting Information and Knowledge from Scientific Data Sets (Dagstuhl Seminar 03231). Dagstuhl Seminar Report 381, pp. 1-6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2003)

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@TechReport{bonneau_et_al:DagSemRep.381,
  author =	{Bonneau, George-Pierre and Ertl, Thomas and Nielson, Gregory M.},
  title =	{{Scientific Visualization: Extracting Information and Knowledge from Scientific Data Sets (Dagstuhl Seminar 03231)}},
  pages =	{1--6},
  ISSN =	{1619-0203},
  year =	{2003},
  type = 	{Dagstuhl Seminar Report},
  number =	{381},
  institution =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemRep.381},
  URN =		{urn:nbn:de:0030-drops-152619},
  doi =		{10.4230/DagSemRep.381},
}
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