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ACM Transactions on Graphics (TOG), Volume 31 Issue 4, July 2012

Keynote: Jane McGonigal
Jane McGonigal
Keynote: 1
DOI: 10.1145/2185520.2349378

Optimizing locomotion controllers using biologically-based actuators and objectives
Jack M. Wang, Samuel R. Hamner, Scott L. Delp, Vladlen Koltun
Article No.: 25
DOI: 10.1145/2185520.2185521

We present a technique for automatically synthesizing walking and running controllers for physically-simulated 3D humanoid characters. The sagittal hip, knee, and ankle degrees-of-freedom are actuated using a set of eight Hill-type musculotendon...

Soft body locomotion
Jie Tan, Greg Turk, C. Karen Liu
Article No.: 26
DOI: 10.1145/2185520.2185522

We present a physically-based system to simulate and control the locomotion of soft body characters without skeletons. We use the finite element method to simulate the deformation of the soft body, and we instrument a character with muscle fibers...

Video-based 3D motion capture through biped control
Marek Vondrak, Leonid Sigal, Jessica Hodgins, Odest Jenkins
Article No.: 27
DOI: 10.1145/2185520.2185523

Marker-less motion capture is a challenging problem, particularly when only monocular video is available. We estimate human motion from monocular video by recovering three-dimensional controllers capable of implicitly simulating the observed human...

Continuous character control with low-dimensional embeddings
Sergey Levine, Jack M. Wang, Alexis Haraux, Zoran Popović, Vladlen Koltun
Article No.: 28
DOI: 10.1145/2185520.2185524

Interactive, task-guided character controllers must be agile and responsive to user input, while retaining the flexibility to be readily authored and modified by the designer. Central to a method's ease of use is its capacity to synthesize...

Schelling points on 3D surface meshes
Xiaobai Chen, Abulhair Saparov, Bill Pang, Thomas Funkhouser
Article No.: 29
DOI: 10.1145/2185520.2185525

This paper investigates "Schelling points" on 3D meshes, feature points selected by people in a pure coordination game due to their salience. To collect data for this investigation, we designed an online experiment that asked people to select...

Functional maps: a flexible representation of maps between shapes
Maks Ovsjanikov, Mirela Ben-Chen, Justin Solomon, Adrian Butscher, Leonidas Guibas
Article No.: 30
DOI: 10.1145/2185520.2185526

We present a novel representation of maps between pairs of shapes that allows for efficient inference and manipulation. Key to our approach is a generalization of the notion of map that puts in correspondence real-valued functions rather than...

Sketch-based shape retrieval
Mathias Eitz, Ronald Richter, Tamy Boubekeur, Kristian Hildebrand, Marc Alexa
Article No.: 31
DOI: 10.1145/2185520.2185527

We develop a system for 3D object retrieval based on sketched feature lines as input. For objective evaluation, we collect a large number of query sketches from human users that are related to an existing data base of objects. The sketches turn...

Decoupling algorithms from schedules for easy optimization of image processing pipelines
Jonathan Ragan-Kelley, Andrew Adams, Sylvain Paris, Marc Levoy, Saman Amarasinghe, Frédo Durand
Article No.: 32
DOI: 10.1145/2185520.2185528

Using existing programming tools, writing high-performance image processing code requires sacrificing readability, portability, and modularity. We argue that this is a consequence of conflating what computations define the algorithm, with...

Adaptive manifolds for real-time high-dimensional filtering
Eduardo S. L. Gastal, Manuel M. Oliveira
Article No.: 33
DOI: 10.1145/2185520.2185529

We present a technique for performing high-dimensional filtering of images and videos in real time. Our approach produces high-quality results and accelerates filtering by computing the filter's response at a reduced set of sampling points, and...

Practical temporal consistency for image-based graphics applications
Manuel Lang, Oliver Wang, Tunc Aydin, Aljoscha Smolic, Markus Gross
Article No.: 34
DOI: 10.1145/2185520.2185530

We present an efficient and simple method for introducing temporal consistency to a large class of optimization driven image-based computer graphics problems. Our method extends recent work in edge-aware filtering, approximating costly global...

DRAPE: DRessing Any PErson
Peng Guan, Loretta Reiss, David A. Hirshberg, Alexander Weiss, Michael J. Black
Article No.: 35
DOI: 10.1145/2185520.2185531

We describe a complete system for animating realistic clothing on synthetic bodies of any shape and pose without manual intervention. The key component of the method is a model of clothing called DRAPE (DRessing Any PErson) that is learned from a...

Design preserving garment transfer
Remi Brouet, Alla Sheffer, Laurence Boissieux, Marie-Paule Cani
Article No.: 36
DOI: 10.1145/2185520.2185532

We present a fully automatic method for design-preserving transfer of garments between characters with different body shapes. For real-life garments, such transfer is performed through a knowledge intensive and time consuming process, known as...

Stitch meshes for modeling knitted clothing with yarn-level detail
Cem Yuksel, Jonathan M. Kaldor, Doug L. James, Steve Marschner
Article No.: 37
DOI: 10.1145/2185520.2185533

Recent yarn-based simulation techniques permit realistic and efficient dynamic simulation of knitted clothing, but producing the required yarn-level models remains a challenge. The lack of practical modeling techniques significantly limits the...

3D imaging spectroscopy for measuring hyperspectral patterns on solid objects
Min H. Kim, Holly Rushmeier, Julie Dorsey, Todd Alan Harvey, Richard O. Prum, David S. Kittle, David J. Brady
Article No.: 38
DOI: 10.1145/2185520.2185534

Sophisticated methods for true spectral rendering have been developed in computer graphics to produce highly accurate images. In addition to traditional applications in visualizing appearance, such methods have potential applications in many areas...

Primal-dual coding to probe light transport
Matthew O'Toole, Ramesh Raskar, Kiriakos N. Kutulakos
Article No.: 39
DOI: 10.1145/2185520.2185535

We present primal-dual coding, a photography technique that enables direct fine-grain control over which light paths contribute to a photo. We achieve this by projecting a sequence of patterns onto the scene while the sensor is exposed to...

Printing spatially-varying reflectance for reproducing HDR images
Yue Dong, Xin Tong, Fabio Pellacini, Baining Guo
Article No.: 40
DOI: 10.1145/2185520.2185536

We present a solution for viewing high dynamic range (HDR) images with spatially-varying distributions of glossy materials printed on reflective media. Our method exploits appearance variations of the glossy materials in the angular domain to...

Synthesis of detailed hand manipulations using contact sampling
Yuting Ye, C. Karen Liu
Article No.: 41
DOI: 10.1145/2185520.2185537

Capturing human activities that involve both gross full-body motion and detailed hand manipulation of objects is challenging for standard motion capture systems. We introduce a new method for creating natural scenes with such human activities. The...

Eyecatch: simulating visuomotor coordination for object interception
Sang Hoon Yeo, Martin Lesmana, Debanga R. Neog, Dinesh K. Pai
Article No.: 42
DOI: 10.1145/2185520.2185538

We present a novel framework for animating human characters performing fast visually guided tasks, such as catching a ball. The main idea is to consider the coordinated dynamics of sensing and movement. Based on experimental evidence about such...

Discovery of complex behaviors through contact-invariant optimization
Igor Mordatch, Emanuel Todorov, Zoran Popović
Article No.: 43
DOI: 10.1145/2185520.2185539

We present a motion synthesis framework capable of producing a wide variety of important human behaviors that have rarely been studied, including getting up from the ground, crawling, climbing, moving heavy objects, acrobatics (hand-stands in...