Graphics (TOG)


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ACM Transactions on Graphics (TOG), Volume 32 Issue 5, September 2013

Understanding the role of phase function in translucent appearance
Ioannis Gkioulekas, Bei Xiao, Shuang Zhao, Edward H. Adelson, Todd Zickler, Kavita Bala
Article No.: 147
DOI: 10.1145/2516971.2516972

Multiple scattering contributes critically to the characteristic translucent appearance of food, liquids, skin, and crystals; but little is known about how it is perceived by human observers. This article explores the perception of translucency by...

Gap processing for adaptive maximal poisson-disk sampling
Dong-Ming Yan, Peter Wonka
Article No.: 148
DOI: 10.1145/2516971.2516973

In this article, we study the generation of maximal Poisson-disk sets with varying radii. First, we present a geometric analysis of gaps in such disk sets. This analysis is the basis for maximal and adaptive sampling in Euclidean space and on...

High-quality computational imaging through simple lenses
Felix Heide, Mushfiqur Rouf, Matthias B. Hullin, Bjorn Labitzke, Wolfgang Heidrich, Andreas Kolb
Article No.: 149
DOI: 10.1145/2516971.2516974

Modern imaging optics are highly complex systems consisting of up to two dozen individual optical elements. This complexity is required in order to compensate for the geometric and chromatic aberrations of a single lens, including geometric...

Geometry and context for semantic correspondences and functionality recognition in man-made 3D shapes
Hamid Laga, Michela Mortara, Michela Spagnuolo
Article No.: 150
DOI: 10.1145/2516971.2516975

We address the problem of automatic recognition of functional parts of man-made 3D shapes in the presence of significant geometric and topological variations. We observe that under such challenging circumstances, the context of a part within a 3D...

Data-driven control of flapping flight
Eunjung Ju, Jungdam Won, Jehee Lee, Byungkuk Choi, Junyong Noh, Min Gyu Choi
Article No.: 151
DOI: 10.1145/2516971.2516976

We present a physically based controller that simulates the flapping behavior of a bird in flight. We recorded the motion of a dove using marker-based optical motion capture and high-speed video cameras. The bird flight data thus acquired allow us...

Geodesics in heat: A new approach to computing distance based on heat flow
Keenan Crane, Clarisse Weischedel, Max Wardetzky
Article No.: 152
DOI: 10.1145/2516971.2516977

We introduce the heat method for computing the geodesic distance to a specified subset (e.g., point or curve) of a given domain. The heat method is robust, efficient, and simple to implement since it is based on solving a pair of standard...

Focus 3D: Compressive accommodation display
Andrew Maimone, Gordon Wetzstein, Matthew Hirsch, Douglas Lanman, Ramesh Raskar, Henry Fuchs
Article No.: 153
DOI: 10.1145/2503144

We present a glasses-free 3D display design with the potential to provide viewers with nearly correct accommodative depth cues, as well as motion parallax and binocular cues. Building on multilayer attenuator and directional backlight...

Instant convolution shadows for volumetric detail mapping
Daniel Patel, Veronika Šoltészová, Jan Martin Nordbotten, Stefan Bruckner
Article No.: 154
DOI: 10.1145/2492684

In this article, we present a method for rendering dynamic scenes featuring translucent procedural volumetric detail with all-frequency soft shadows being cast from objects residing inside the view frustum. Our approach is based on an...

Harmonic parameterization by electrostatics
He Wang, Kirill A. Sidorov, Peter Sandilands, Taku Komura
Article No.: 155
DOI: 10.1145/2503177

In this article, we introduce a method to apply ideas from electrostatics to parameterize the open space around an object. By simulating the object as a virtually charged conductor, we can define an object-centric coordinate system which we call...

Authoring and animating painterly characters
Katie Bassett, Ilya Baran, Johannes Schmid, Markus Gross, Robert W. Sumner
Article No.: 156
DOI: 10.1145/2484238

Artists explore the visual style of animated characters through 2D concept art, since it affords them a nearly unlimited degree of creative freedom. Realizing the desired visual style, however, within the 3D character animation pipeline is often...