Expressive 2015
Joint Symposium of
Computational Aesthetics (CAe)
Non-Photorealistic Animation and Rendering (NPAR) Sketch-Based Interfaces and Modeling (SBIM)
Istanbul, Turkey June 20 – 22, 2015
General Chair
Metin Sezgin, Koç University, Turkey Program Chair CAe
Paul L. Rosin, Cardiff University, UK Program Chairs NPAR
David Mould, Carleton University, Canada Pierre Bénard, University of Bordeaux, France
Program Chair SBIM
Ergun Akleman, Texas A&M University, USA
Proceedings Production Editor
Dieter Fellner (TU Darmstadt & Fraunhofer IGD, Germany)
Sponsored by EUROGRAPHICS Association in cooperation with ACM SIGGRAPH
DOI: 10.2312/exp.20152015
Dieter W. Fellner, Werner Hansmann, Werner Purgathofer, François Sillion Series Editors
Eurographics Workshops and Symposia Proceedings 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 c2015 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 CAe: ISBN 978-3-905674-89-7, ISSN 1816-0859
SBIM: ISBN 978-3-905674-90-3, ISSN 1812-3503 NPAR: ISBN 978-3-905674-91-0
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 Expressive 2015 . . . v Author Index . . . vi
Rendering and Modeling
Rendering Artistic Light Patterns . . . 1 Li Ji, Amy Gooch, Lynda Gammon, and Brian Wyvill
Inverse Toon Shading: Interactive Normal Field Modeling with Isophotes . . . 15 Qiuying Xu, Yotam Gingold, and Karan Singh
Adding Dynamics to Sketch-based Character Animations . . . 27 Martin Guay, Rémi Ronfard, Michael Gleicher, and Marie-Paule Cani
Computational Models for the Analysis and Synthesis of Graffiti Tag Strokes . . . 35 Daniel Berio and Frederic Fol Leymarie
Stylization
ShipShape: A Drawing Beautification Assistant . . . 49 Jakub Fišer, Paul Asente, and Daniel Sýkora
Real-Time Activity Prediction: A Gaze-Based Approach for Early Recognition of Pen-Based
Interaction Tasks . . . 59 Ça ˘gla Çi ˘g and Tevfik Metin Sezgin
Style-aware Robust Color Transfer . . . 67 Hristina Hristova, Olivier Le Meur, Rémi Cozot, and Kadi Bouatouch
Hybrid-Space Localized Stylization Method for View-Dependent Lines Extracted from 3D
Models . . . 79 Luis Cardona and Suguru Saito
Recognition
Semi-Automatic Digital Epigraphy from Images with Normals . . . 91 Sema Berkiten, Xinyi Fan, and Szymon Rusinkiewicz
Drawing Characteristics for Reproducing Traditional Hand-Made Stippling . . . 103 Domingo Martín, Vicente del Sol, Celia Romo, and Tobias Isenberg
SVM-based Sketch Recognition: Which Hyperparameter Interval to Try? . . . 117 Kemal Tugrul Yesilbek, Cansu Sen, Serike Cakmak, and T. Metin Sezgin
Table of Contents
A Combined Junction-Cue Dictionary for Labelling Sketch Drawings with Artistic
Shadows and Table-line Cues . . . 123 Alexandra Bonnici and Kenneth P. Camilleri
Working with Images
Image Warping for a Painterly Effect . . . 131 Jiayu Li and David Mould
Shake it up - Image Decomposition and Rearrangements of Its Constituents . . . 141 Lena Gieseke, Sven Klingel, and Martin Fuchs
Image Stylization by Oil Paint Filtering using Color Palettes . . . 149 Amir Semmo, Daniel Limberger, Jan Eric Kyprianidis, and Jürgen Döllner
Non-Photorealistic Rendering of Portraits . . . 159 Paul L. Rosin and Yu-Kun Lai
Synthesis
Painting with Flowsnakes . . . 171 Brian Wyvill
Texture-Aware ASCII Art Synthesis with Proportional Fonts . . . 183 Xuemiao Xu, Linyuan Zhong, Minshan Xie, Jing Qin, Yilan Chen, Qiang Jin, Tien-Tsin Wong, and Guoqiang Han
Video Granular Synthesis . . . 195 Angus Graeme Forbes and Javier Villegas
The Markov Pen: Online Synthesis of Free-Hand Drawing Styles . . . 203 Katrin Lang and Marc Alexa
International Program Committee Expressive 2015
Aaron Adler Ergun Akleman Zainab AlMeraj Paul Asente Loic Barthe Ronen Barzel Seokhyung Bae Pierre Benard Alexandra Bonnici Stefan Bruckner Marie-Paule Cani Nathan Carr Forrester Cole John Collomosse Pedro Company John Dingliana Stephen DiVerdi Angus Forbes Yotam Gingold Cindy Grimm John Hughes Victoria Interrante Tobias Isenberg Li Ji
Pushkar Joshi Prem Kalra Craig Kaplan Burak Kara Yukun Lai Ed Lank
Caroline Larboulette Manfred Lau
Joseph LaViola Jr.
Seungyong Lee Hua Li
Ligang Liu Josep Llados Ross Maciejewski Barbara Meier David Mould Karol Myszkowski Victor Ostromoukhov Beryl Plimmer
Tania Pouli Erik Reinhard Paul Rosin
Christian Richardt Faramarz Samavati Anthony Santella Eric Saund Mateu Sbert Karan Singh Yi-Zhe Song Kalyan Sunkavalli Daniel Sykora Joelle Thollot
Michiel van de Panne Christian Wallraven Daniel Weiskopf Holger Winnemoeller Brian Wyvill
Kyunghyun Yoon Eugene Zhang Mingtian Zhao
Author Index
Alexa, Marc . . . 203
Asente, Paul . . . 49
Berio, Daniel . . . 35
Berkiten, Sema . . . 91
Bonnici, Alexandra . . . 123
Bouatouch, Kadi . . . 67
Cakmak, Serike . . . 117
Camilleri, Kenneth P. . . 123
Cani, Marie-Paule . . . 27
Cardona, Luis . . . 79
Chen, Yilan . . . 183
Çi˘g, Ça˘gla . . . 59
Cozot, Rémi . . . 67
Döllner, Jürgen . . . 149
Fan, Xinyi . . . 91
Fišer, Jakub . . . 49
Fol Leymarie, Frederic . . . 35
Forbes, Angus Graeme . . . 195
Fuchs, Martin . . . 141
Gammon, Lynda . . . 1
Gieseke, Lena . . . 141
Gingold, Yotam . . . 15
Gleicher, Michael . . . 27
Gooch, Amy . . . 1
Guay, Martin . . . 27
Han, Guoqiang . . . .183
Hristova, Hristina . . . 67
Isenberg, Tobias . . . .103
Ji, Li . . . 1
Jin, Qiang . . . 183
Klingel, Sven . . . 141
Kyprianidis, Jan Eric . . . 149
Lai, Yu-Kun . . . 159
Lang, Katrin . . . 203
Le Meur, Olivier . . . 67
Li, Jiayu . . . 131
Limberger, Daniel . . . 149
Martín, Domingo . . . .103
Mould, David . . . 131
Qin, Jing . . . 183
Romo, Celia . . . 103
Ronfard, Rémi . . . 27
Rosin, Paul L. . . 159
Rusinkiewicz, Szymon . . . 91
Saito, Suguru . . . 79
Semmo, Amir . . . .149
Sen, Cansu . . . 117
Sezgin, Tevfik Metin . . . 59, 117 Singh, Karan . . . 15
Sol, Vicente del . . . 103
Sýkora, Daniel . . . 49
Villegas, Javier . . . .195
Wong, Tien-Tsin . . . 183
Wyvill, Brian . . . 1, 171 Xie, Minshan . . . 183
Xu, Qiuying . . . 15
Xu, Xuemiao . . . 183
Yesilbek, Kemal Tugrul . . . 117
Zhong, Linyuan . . . 183
