VMV 2016
Vision, Modeling and Visualization
Bayreuth, Germany October 10 – 12, 2016
General Chairs Michael Guthe
Program Chairs Matthias Hullin Marc Stamminger
Tino Weinkauf
Proceedings Production Editor
Dieter Fellner (TU Darmstadt & Fraunhofer IGD, Germany) In cooperation with the Eurographics Association
DOI: 10.2312/vmv.20162023
This work is subject to copyright.
All rights reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machines or similar means, and storage in data banks.
Copyright c2016 by the Eurographics Association Postfach 2926, 38629 Goslar, Germany
Published by the Eurographics Association –Postfach 2926, 38629 Goslar, Germany–
in cooperation with
Institute of Computer Graphics & Knowledge Visualization at Graz University of Technology and
Fraunhofer IGD (Fraunhofer Institute for Computer Graphics Research), Darmstadt ISBN 978-3-03868-025-3
The electronic version of the proceedings is available from the Eurographics Digital Library at http://diglib.eg.org
Table of Contents
Table of Contents . . . iii
International Program Committee . . . v
Sponsors . . . vi
Author Index . . . vii
Invited Talks . . . viii
Geometry Structuring 3D Medial Skeletons: A Comparative Study . . . 1
Thomas Delame, Jacek Kustra, and Alexandru C. Telea Balancing 3D Models with Movable Masses . . . 9
Romain Prévost, Moritz Bächer, Wojciech Jarosz, and Olga Sorkine-Hornung Geodesic Iso-Curve Signature . . . 17
Anne Gehre, David Bommes, and Leif Kobbelt Reconstructing and Understanding the World Fast Metric Acquisition with Mobile Devices . . . 29
Valeria Garro, Giovanni Pintore, Fabio Ganovelli, Enrico Gobbetti, and Roberto Scopigno 3D Face Reconstruction with Silhouette Constraints . . . 37
Qiyang Hu, Matthias Zwicker, and Paolo Favaro Scene Structure Inference through Scene Map Estimation . . . 45
Moos Hueting, Viorica Pˇatrˇaucean, Maks Ovsjanikov, and Niloy J. Mitra Exploring Trees and Time Series A Matrix-Based Visual Comparison of Time Series Sports Data . . . 53
Fabian Beck, Michael Burch, and Daniel Weiskopf Metric Evolution Maps: Multidimensional Attribute-driven Exploration of Software Repositories . . . 61
Renato Rodrigues Oliveira da Silva, Eduardo Faccin Vernier, Paulo Eduardo Rauber, Joao L. D. Comba, Rosane Minghim, and Alexandru C. Telea Volumes and Flows Singularities of the Inertial Flow Map Gradient . . . 69
Tobias Günther and Holger Theisel Variable Length Coding for GPU-Based Direct Volume Rendering . . . 77 Stefan Guthe and Michael Goesele
Table of Contents
Real-time Novel-view Synthesis for Volume Rendering Using a Piecewise-analytic Representation . . . 85 Gerrit Lochmann, Bernhard Reinert, Arend Buchacher, and Tobias Ritschel
Image Editing and Exploration
PEEP: Perceptually Enhanced Exploration of Pictures . . . 93 Marco Agus, Alberto Jaspe Villanueva, Giovanni Pintore, and Enrico Gobbetti
A Framework for Interactive Realtime Image Editing . . . 101 Benjamin Hell, Moritz Mühlhausen, and Marcus Magnor
Matting with Sequential Pair Selection Using Graph Transduction . . . 111 Ahmad Al-Kabbany and Eric Dubois
Artistic Composition for Painterly Rendering . . . 119 Thomas Lindemeier, Marc Spicker, and Oliver Deussen
Light Fields and Materials
Gloss Editing in Light Fields . . . 127 Yulia Gryaditskaya, Belen Masia, Piotr Didyk, Karol Myszkowski, and Hans-Peter Seidel
Reflection Separation in Light Fields based on Sparse Coding and Specular Flow . . . 137 Antonin Sulc, Anna Alperovich, Nico Marniok, and Bastian Goldluecke
An Interactive Appearance Model for Microscopic Fiber Surfaces . . . 145 Zdravko Velinov and Matthias B. Hullin
Representing and Rendering Large Data
Topological Triangle Sorting for Predefined Camera Paths . . . 153 Christoph Weber and Marc Stamminger
Icosahedral Maps for a Multiresolution Representation of Earth Data . . . 161 Mohammad Imrul Jubair, Usman Alim, Niklas Röber, John Clyne, and Ali Mahdavi-Amiri
Understanding Light
An Interactive Information Visualization Approach to Physically-Based Rendering . . . 169 Gerard Simons, Marco Ament, Sebastian Herholz, Carsten Dachsbacher, Martin Eisemann, and Elmar
Eisemann
A Phenomenological Approach to Integrating Gaussian Beam Properties and Speckle into a Physically-
Based Renderer . . . 179 Stephan Bergmann, Mahsa Mohammadikaji, Stephan Irgenfried, Heinz Wörn, Jürgen Beyerer, and Carsten Dachsbacher
International Program Committee Jan Bender
Benjamin Berkels Volker Blanz Mario Botsch Michael Bronstein Carsten Dachsbacher Oliver Deussen Peter Eisert Martin Fuchs Christoph Garth Michael Goesele Günther Greiner Thorsten Grosch Stefan Guthe Klaus Hildebrandt Mario Hlawitschka Kai Hormann Reinhard Klein
Jörn Kohlhammer Andreas Kolb Arjan Kuijper
Tatiana Landesberger Marcus Magnor Dorit Merhof Timo Ropinski Filip Sadlo Andreas Schilling Gerik Scheuermann Heidrun Schumann Matthias Teschner Holger Theisel Christian Theobalt Thorsten Thormählen Andreas Weber Daniel Weiskopf
Sponsors
Author Index
Agus, Marco . . . 93
Alim, Usman . . . 161
Al-Kabbany, Ahmad . . . 111
Alperovich, Anna . . . 137
Ament, Marco . . . 169
Bächer, Moritz . . . 9
Beck, Fabian . . . 53
Bergmann, Stephan . . . 179
Beyerer, Jürgen . . . 179
Bommes, David . . . 17
Buchacher, Arend . . . 85
Burch, Michael . . . 53
Clyne, John . . . 161
Comba, Joao L. D. . . 61
Dachsbacher, Carsten . . . 169, 179 Delame, Thomas . . . 1
Deussen, Oliver . . . 119
Didyk, Piotr . . . 127
Dubois, Eric . . . 111
Eisemann, Elmar . . . 169
Eisemann, Martin . . . 169
Favaro, Paolo . . . 37
Ganovelli, Fabio . . . 29
Garro, Valeria . . . 29
Gehre, Anne . . . 17
Gobbetti, Enrico . . . 29, 93 Goesele, Michael . . . 77
Goldluecke, Bastian . . . 137
Gryaditskaya, Yulia . . . 127
Günther, Tobias . . . 69
Guthe, Stefan . . . 77
Hell, Benjamin . . . 101
Herholz, Sebastian . . . 169
Hu, Qiyang . . . 37
Hueting, Moos . . . 45
Hullin, Matthias B. . . 145
Irgenfried, Stephan . . . 179
Jarosz, Wojciech . . . 9
Jubair, Mohammad Imrul . . . 161
Kobbelt, Leif . . . 17
Kustra, Jacek . . . 1
Lindemeier, Thomas . . . 119
Lochmann, Gerrit . . . 85
Magnor, Marcus . . . 101
Mahdavi-Amiri, Ali . . . 161
Marniok, Nico . . . 137
Masia, Belen . . . 127
Minghim, Rosane . . . 61
Mitra, Niloy J. . . 45
Mohammadikaji, Mahsa . . . 179
Mühlhausen, Moritz . . . 101
Myszkowski, Karol . . . 127
Ovsjanikov, Maks . . . 45
Pˇatrˇaucean, Viorica . . . 45
Pintore, Giovanni . . . 29, 93 Prévost, Romain . . . 9
Rauber, Paulo Eduardo . . . 61
Reinert, Bernhard . . . 85
Ritschel, Tobias . . . 85
Röber, Niklas . . . 161
Scopigno, Roberto . . . 29
Seidel, Hans-Peter . . . 127
Silva, Renato Rodrigues Oliveira da . . . 61
Simons, Gerard . . . 169
Sorkine-Hornung, Olga . . . 9
Spicker, Marc . . . 119
Stamminger, Marc . . . 153
Sulc, Antonin . . . 137
Telea, Alexandru C. . . 1, 61 Theisel, Holger . . . 69
Velinov, Zdravko . . . 145
Vernier, Eduardo Faccin . . . 61
Villanueva, Alberto Jaspe . . . 93
Weber, Christoph . . . 153
Weiskopf, Daniel . . . 53
Wörn, Heinz . . . 179
Zwicker, Matthias . . . 37
Invited Talk Generalized Barycentric Coordinates
Kai Hormann - Università della Svizzera italiana
Abstract
1827, August Ferdinand Möbius published his seminal work on the ’barycentric calcul’ which provides a novel approach to analytic geometry. One key element in his work is the idea of barycentric coordinates which allow to write any point inside a triangle as a unique convex combination of the triangle’s vertices.
These triangular barycentric coordinates are linear and possess the Lagrange property, and are therefore commonly used to linearly interpolate values given at the vertices of a triangle. Möbius also noticed that this construction extends nicely to linear interpolation of data given at the vertices of a d-dimensional simplex, and by giving up positivity of the coordinates, we can even extrapolate the data to every point in d dimensions.
While barycentric coordinates are unique for simplices, they can be generalized in several ways to arbi- trary polygons and polytopes in higher dimensions, and over the past few years, a number of recipes for such generalized barycentric coordinates have been developed. As they are usually given in closed form and can be evaluated efficiently, they have many useful applications, e.g. in computer graphics, computer aided geometric design, and image processing.
Biographical Sketch
Kai Hormann is a full professor in the Faculty of Informatics at the Università della Svizzera italiana (USI) in Lugano. He received a Ph.D. in computer science from the University of Erlangen in 2002 and spent two years as a postdoctoral research fellow at Caltech in Pasadena and the CNR in Pisa, before joining Clausthal University of Technology as an assistant professor in 2004. During the winter term 2007/2008 he visited Freie Universität Berlin as a BMS substitute professor and came to Lugano as an associate professor in 2009.
His research interests are focussed on the mathematical foundations of geometry processing algorithms as well as their applications in computer graphics and related fields. In particular, he is working on gener- alized barycentric coordinates, subdivision of curves and surfaces, barycentric rational interpolation, and dynamic geometry processing.
Invited Talk Visual Data Exploration
Eduard Gröller - TU Wien
Abstract
Visualization and Visual Computing use computer-supported, interactive, visual representations of (ab- stract) data to amplify cognition. In recent years data complexity and variability has increased consid- erably. This is due to new data sources as well as the availability of uncertainty, error and tolerance information. Instead of individual objects entire sets, collections, and ensembles are visually investigated.
This raises the need for effective visual reformations, sparse interactions, and comparative visualization approaches. Visual data science and computational sciences provide vast amounts of digital variations of a phenomenon which can be explored through superposition, juxtaposition and explicit difference encod- ing. A few examples of visual data exploration coming from various areas of visualization, i.e., scientific visualization, information visualization and visual analytics, will be treated in more detail. Analysis tech- niques which combine visualization and simulation to assist decision making under uncertainty will be discussed. Given the amplified data variability, visual data exploration is likely to gain in importance in the future. Research challenges and directions are sketched at the end of the talk.
Biographical Sketch
Eduard Gröller is professor at TU Wien, Austria, and adjunct professor of computer science at the Uni- versity of Bergen, Norway. His research interests include computer graphics, visualization and visual computing. He co-authored more than 250 scientific publications and acted as a co-chair, IPC member, and reviewer for numerous conferences and journals in the field. He became a fellow of the Eurographics association in 2009. Dr. Gröller has been Co-Chief Editor of the Computer Graphics Forum journal (2008- 2011) and chair of the EuroVis 2012 conference. He is the recipient of the Eurographics 2015 Outstanding Technical Contributions Award.
Invited Talk
VR & AR: from research to the search for content and markets Robert Hoffmeister - Milkroom Studios GmbH
Abstract
Virtual Reality and Augmented Realty are the buzz words you hear in just about every company and marketing agency these days. The hardware is (mostly) here, but what about the content? I will attempt to shine some light and would like to open a discussion on the (entertainment) uses or AV and VR. (Warning:
This session will contain no Algorithms or Formulars) Biographical Sketch
Robert Hoffmeister has been living on the edge between creativity and technology since the early nineties.
He worked at Lucasfilm/Industial Light and Magic for about a decade as lead artist and set supervisor, filming e.g. exploding hand crafted Miniatures for Transformers 2, 3 and many more, before he moved to Disney as Visual Effects Supervisor and Stereo 3D Director. In 2014 he co-founded Milkroom Studios GmbH, a international Studio focused on the converging fields of Visual Effects and gaming. His Com- pany is currently working on several VR titles for Project Tango, mobile and desktop VR. His feature film credits include: Ironman 2 & 3, The Seventh Son, Rango, Spiderwick Chronicles, Lemony Snicket, Transformers 1-3, Star Trek, Pirates of the Caribbean 2-4, StarWars EP 2,3 and many more.
