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ACM Transactions on Graphics (TOG), Volume 32 Issue 3, June 2013

3D+2DTV: 3D displays with no ghosting for viewers without glasses
Steven Scher, Jing Liu, Rajan Vaish, Prabath Gunawardane, James Davis
Article No.: 21
DOI: 10.1145/2487228.2487229

3D displays are increasingly popular in consumer and commercial applications. Many such displays show 3D images to viewers wearing special glasses, while showing an incomprehensible double image to viewers without glasses. We demonstrate a simple...

Eulerian-on-lagrangian simulation
Ye Fan, Joshua Litven, David I. W. Levin, Dinesh K. Pai
Article No.: 22
DOI: 10.1145/2487228.2487230

We describe an Eulerian-on-Lagrangian solid simulator that reduces or eliminates many of the problems experienced by fully Eulerian methods but retains their advantages. Our method does not require the construction of an explicit object...

A unified interpolatory subdivision scheme for quadrilateral meshes
Chongyang Deng, Weiyin Ma
Article No.: 23
DOI: 10.1145/2487228.2487231

For approximating subdivision schemes, there are several unified frameworks for effectively constructing subdivision surfaces generalizing splines of an arbitrary degree. In this article, we present a similar unified framework for interpolatory...

*Cages:: A multilevel, multi-cage-based system for mesh deformation
Francisco González García, Teresa Paradinas, Narcís Coll, Gustavo Patow
Article No.: 24
DOI: 10.1145/2487228.2487232

Cage-based deformation has been one of the main approaches for mesh deformation in recent years, with a lot of interesting and active research. The main advantages of cage-based deformation techniques are their simplicity, relative flexibility,...

Blue noise sampling with controlled aliasing
Daniel Heck, Thomas Schlömer, Oliver Deussen
Article No.: 25
DOI: 10.1145/2487228.2487233

In this article we revisit the problem of blue noise sampling with a strong focus on the spectral properties of the sampling patterns. Starting from the observation that oscillations in the power spectrum of a sampling pattern can cause aliasing...

Analytic displacement mapping using hardware tessellation
Matthias Nießner, Charles Loop
Article No.: 26
DOI: 10.1145/2487228.2487234

Displacement mapping is ideal for modern GPUs since it enables high-frequency geometric surface detail on models with low memory I/O. However, problems such as texture seams, normal recomputation, and undersampling artifacts have limited its...

VDB: High-resolution sparse volumes with dynamic topology
Ken Museth
Article No.: 27
DOI: 10.1145/2487228.2487235

We have developed a novel hierarchical data structure for the efficient representation of sparse, time-varying volumetric data discretized on a 3D grid. Our “VDB”, so named because it is a Volumetric, Dynamic grid that shares several...

Exposing photo manipulation with inconsistent shadows
Eric Kee, James F. O'Brien, Hany Farid
Article No.: 28
DOI: 10.1145/2487228.2487236

We describe a geometric technique to detect physically inconsistent arrangements of shadows in an image. This technique combines multiple constraints from cast and attached shadows to constrain the projected location of a point light source. The...

Screened poisson surface reconstruction
Michael Kazhdan, Hugues Hoppe
Article No.: 29
DOI: 10.1145/2487228.2487237

Poisson surface reconstruction creates watertight surfaces from oriented point sets. In this work we extend the technique to explicitly incorporate the points as interpolation constraints. The extension can be interpreted as a generalization of...

Depth synthesis and local warps for plausible image-based navigation
Gaurav Chaurasia, Sylvain Duchene, Olga Sorkine-Hornung, George Drettakis
Article No.: 30
DOI: 10.1145/2487228.2487238

Modern camera calibration and multiview stereo techniques enable users to smoothly navigate between different views of a scene captured using standard cameras. The underlying automatic 3D reconstruction methods work well for buildings and regular...

5D Covariance tracing for efficient defocus and motion blur
Laurent Belcour, Cyril Soler, Kartic Subr, Nicolas Holzschuch, Fredo Durand
Article No.: 31
DOI: 10.1145/2487228.2487239

The rendering of effects such as motion blur and depth-of-field requires costly 5D integrals. We accelerate their computation through adaptive sampling and reconstruction based on the prediction of the anisotropy and bandwidth of the integrand....