Graphics (TOG)


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ACM Transactions on Graphics (TOG), Volume 33 Issue 2, March 2014

Facial performance enhancement using dynamic shape space analysis
Amit H. Bermano, Bernd Bickel, Markus Gross, Derek Bradley, Thabo Beeler, Fabio Zund, Derek Nowrouzezahrai, Ilya Baran, Olga Sorkine-Hornung, Hanspeter Pfister, Robert W. Sumner
Article No.: 13
DOI: 10.1145/2546276

The facial performance of an individual is inherently rich in subtle deformation and timing details. Although these subtleties make the performance realistic and compelling, they often elude both motion capture and hand animation. We present a...

Painting-to-3D model alignment via discriminative visual elements
Mathieu Aubry, Bryan C. Russell, Josef Sivic
Article No.: 14
DOI: 10.1145/2591009

This article describes a technique that can reliably align arbitrary 2D depictions of an architectural site, including drawings, paintings, and historical photographs, with a 3D model of the site. This is a tremendously difficult task, as the...

Edit propagation using geometric relationship functions
Paul Guerrero, Stefan Jeschke, Michael Wimmer, Peter Wonka
Article No.: 15
DOI: 10.1145/2591010

We propose a method for propagating edit operations in 2D vector graphics, based on geometric relationship functions. These functions quantify the geometric relationship of a point to a polygon, such as the distance to the boundary or the...

Ink-and-ray: Bas-relief meshes for adding global illumination effects to hand-drawn characters
Daniel Sýkora, Ladislav Kavan, Martin Čadík, Ondřej Jamriška, Alec Jacobson, Brian Whited, Maryann Simmons, Olga Sorkine-Hornung
Article No.: 16
DOI: 10.1145/2591011

We present a new approach for generating global illumination renderings of hand-drawn characters using only a small set of simple annotations. Our system exploits the concept of bas-relief sculptures, making it possible to generate 3D proxies...

Refractive radiative transfer equation
Marco Ament, Christoph Bergmann, Daniel Weiskopf
Article No.: 17
DOI: 10.1145/2557605

We introduce a refractive radiative transfer equation to the graphics community for the physically based rendering of participating media that have a spatially varying index of refraction. We review principles of geometric nonlinear optics that...

Decoupling noise and features via weighted ℓ1-analysis compressed sensing
Ruimin Wang, Zhouwang Yang, Ligang Liu, Jiansong Deng, Falai Chen
Article No.: 18
DOI: 10.1145/2557449

Many geometry processing applications are sensitive to noise and sharp features. Although there are a number of works on detecting noise and sharp features in the literature, they are heuristic. On one hand, traditional denoising methods use...

Computing smooth surface contours with accurate topology
Pierre Bénard, Aaron Hertzmann, Michael Kass
Article No.: 19
DOI: 10.1145/2558307

This article introduces a method for accurately computing the visible contours of a smooth 3D surface for stylization. This is a surprisingly difficult problem, and previous methods are prone to topological errors, such as gaps in the outline. Our...

Flow-complex-based shape reconstruction from 3D curves
Bardia Sadri, Karan Singh
Article No.: 20
DOI: 10.1145/2560328

We address the problem of shape reconstruction from a sparse unorganized collection of 3D curves, typically generated by increasingly popular 3D curve sketching applications. Experimentally, we observe that human understanding of shape from...

Deformation embedding for point-based elastoplastic simulation
Ben Jones, Stephen Ward, Ashok Jallepalli, Joseph Perenia, Adam W. Bargteil
Article No.: 21
DOI: 10.1145/2560795

We present a straightforward, easy-to-implement, point-based approach for animating elastoplastic materials. The core idea of our approach is the introduction of embedded space—the least-squares best fit of the material's rest state...