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ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2013, Volume 32 Issue 6, November 2013

Section: Dynamics for people, plants and clothes

Analyzing growing plants from 4D point cloud data
Yangyan Li, Xiaochen Fan, Niloy J. Mitra, Daniel Chamovitz, Daniel Cohen-Or, Baoquan Chen
Article No.: 157
DOI: 10.1145/2508363.2508368

Studying growth and development of plants is of central importance in botany. Current quantitative are either limited to tedious and sparse manual measurements, or coarse image-based 2D measurements. Availability of cheap and portable 3D...

Reconstructing detailed dynamic face geometry from monocular video
Pablo Garrido, Levi Valgaert, Chenglei Wu, Christian Theobalt
Article No.: 158
DOI: 10.1145/2508363.2508380

Detailed facial performance geometry can be reconstructed using dense camera and light setups in controlled studios. However, a wide range of important applications cannot employ these approaches, including all movie productions shot from a single...

Inverse dynamic hair modeling with frictional contact
Alexandre Derouet-Jourdan, Florence Bertails-Descoubes, Gilles Daviet, Joëlle Thollot
Article No.: 159
DOI: 10.1145/2508363.2508398

In the latest years, considerable progress has been achieved for accurately acquiring the geometry of human hair, thus largely improving the realism of virtual characters. In parallel, rich physics-based simulators have been successfully designed...

On-set performance capture of multiple actors with a stereo camera
Chenglei Wu, Carsten Stoll, Levi Valgaerts, Christian Theobalt
Article No.: 161
DOI: 10.1145/2508363.2508418

State-of-the-art marker-less performance capture algorithms reconstruct detailed human skeletal motion and space-time coherent surface geometry. Despite being a big improvement over marker-based motion capture methods, they are still rarely...

Section: Dynamics for people, plants and clothes

Inverse volume rendering with material dictionaries
Ioannis Gkioulekas, Shuang Zhao, Kavita Bala, Todd Zickler, Anat Levin
Article No.: 162
DOI: 10.1145/2508363.2508377

Translucent materials are ubiquitous, and simulating their appearance requires accurate physical parameters. However, physically-accurate parameters for scattering materials are difficult to acquire. We introduce an optimization framework for...

Inverse bi-scale material design
Hongzhi Wu, Julie Dorsey, Holly Rushmeier
Article No.: 163
DOI: 10.1145/2508363.2508394

One major shortcoming of existing bi-scale material design systems is the lack of support for inverse design: there is no way to directly edit the large-scale appearance and then rapidly solve for the small-scale details that approximate that...

Joint importance sampling of low-order volumetric scattering
Iliyan Georgiev, Jaroslav Křivánek, Toshiya Hachisuka, Derek Nowrouzezahrai, Wojciech Jarosz
Article No.: 164
DOI: 10.1145/2508363.2508411

Central to all Monte Carlo-based rendering algorithms is the construction of light transport paths from the light sources to the eye. Existing rendering approaches sample path vertices incrementally when constructing these light transport...

Wave-ray coupling for interactive sound propagation in large complex scenes
Hengchin Yeh, Ravish Mehra, Zhimin Ren, Lakulish Antani, Dinesh Manocha, Ming Lin
Article No.: 165
DOI: 10.1145/2508363.2508420

We present a novel hybrid approach that couples geometric and numerical acoustic techniques for interactive sound propagation in complex environments. Our formulation is based on a combination of spatial and frequency decomposition of the sound...

Section: Dynamics for people, plants and clothes

PiCam: an ultra-thin high performance monolithic camera array
Kartik Venkataraman, Dan Lelescu, Jacques Duparré, Andrew McMahon, Gabriel Molina, Priyam Chatterjee, Robert Mullis, Shree Nayar
Article No.: 166
DOI: 10.1145/2508363.2508390

We present PiCam (Pelican Imaging Camera-Array), an ultra-thin high performance monolithic camera array, that captures light fields and synthesizes high resolution images along with a range image (scene depth) through integrated parallax...

Coded time of flight cameras: sparse deconvolution to address multipath interference and recover time profiles
Achuta Kadambi, Refael Whyte, Ayush Bhandari, Lee Streeter, Christopher Barsi, Adrian Dorrington, Ramesh Raskar
Article No.: 167
DOI: 10.1145/2508363.2508428

Time of flight cameras produce real-time range maps at a relatively low cost using continuous wave amplitude modulation and demodulation. However, they are geared to measure range (or phase) for a single reflected bounce of light and suffer from...

Section: Dynamics for people, plants and clothes

QEx: robust quad mesh extraction
Hans-Christian Ebke, David Bommes, Marcel Campen, Leif Kobbelt
Article No.: 168
DOI: 10.1145/2508363.2508372

The most popular and actively researched class of quad remeshing techniques is the family of parametrization based quad meshing methods. They all strive to generate an integer-grid map, i.e. a parametrization of the input surface...

Real-time 3D reconstruction at scale using voxel hashing
Matthias Nießner, Michael Zollhöfer, Shahram Izadi, Marc Stamminger
Article No.: 169
DOI: 10.1145/2508363.2508374

Online 3D reconstruction is gaining newfound interest due to the availability of real-time consumer depth cameras. The basic problem takes live overlapping depth maps as input and incrementally fuses these into a single 3D model. This is...

Saddle vertex graph (SVG): a novel solution to the discrete geodesic problem
Xiang Ying, Xiaoning Wang, Ying He
Article No.: 170
DOI: 10.1145/2508363.2508379

This paper presents the Saddle Vertex Graph (SVG), a novel solution to the discrete geodesic problem. The SVG is a sparse undirected graph that encodes complete geodesic distance information: a geodesic path on the mesh is equivalent to a shortest...

PolyCut: monotone graph-cuts for PolyCube base-complex construction
Marco Livesu, Nicholas Vining, Alla Sheffer, James Gregson, Riccardo Scateni
Article No.: 171
DOI: 10.1145/2508363.2508388

PolyCubes, or orthogonal polyhedra, are useful as parameterization base-complexes for various operations in computer graphics. However, computing quality PolyCube base-complexes for general shapes, providing a good trade-off between mapping...

A compact random-access representation for urban modeling and rendering
Zhengzheng Kuang, Bin Chan, Yizhou Yu, Wenping Wang
Article No.: 172
DOI: 10.1145/2508363.2508424

We propose a highly memory-efficient representation for modeling and rendering urban buildings composed predominantly of rectangular block structures, which can be used to completely or partially represent most modern buildings. With the proposed...

Section: Dynamics for people, plants and clothes

Content-adaptive image downscaling
Johannes Kopf, Ariel Shamir, Pieter Peers
Article No.: 173
DOI: 10.1145/2508363.2508370

This paper introduces a novel content-adaptive image downscaling method. The key idea is to optimize the shape and locations of the downsampling kernels to better align with local image features. Our content-adaptive kernels are formed as a...

"Mind the gap": tele-registration for structure-driven image completion
Hui Huang, Kangxue Yin, Minglun Gong, Dani Lischinski, Daniel Cohen-Or, Uri Ascher, Baoquan Chen
Article No.: 174
DOI: 10.1145/2508363.2508373

Concocting a plausible composition from several non-overlapping image pieces, whose relative positions are not fixed in advance and without having the benefit of priors, can be a daunting task. Here we propose such a method, starting with a set of...

A no-reference metric for evaluating the quality of motion deblurring
Yiming Liu, Jue Wang, Sunghyun Cho, Adam Finkelstein, Szymon Rusinkiewicz
Article No.: 175
DOI: 10.1145/2508363.2508391

Methods to undo the effects of motion blur are the subject of intense research, but evaluating and tuning these algorithms has traditionally required either user input or the availability of ground-truth images. We instead develop a metric for...

Structure-preserving image smoothing via region covariances
Levent Karacan, Erkut Erdem, Aykut Erdem
Article No.: 176
DOI: 10.1145/2508363.2508403

Recent years have witnessed the emergence of new image smoothing techniques which have provided new insights and raised new questions about the nature of this well-studied problem. Specifically, these models separate a given image into its...

Section: Dynamics for people, plants and clothes

Cost-effective printing of 3D objects with skin-frame structures
Weiming Wang, Tuanfeng Y. Wang, Zhouwang Yang, Ligang Liu, Xin Tong, Weihua Tong, Jiansong Deng, Falai Chen, Xiuping Liu
Article No.: 177
DOI: 10.1145/2508363.2508382

3D printers have become popular in recent years and enable fabrication of custom objects for home users. However, the cost of the material used in printing remains high. In this paper, we present an automatic solution to design a skin-frame...

Sphere-Meshes: shape approximation using spherical quadric error metrics
Jean-Marc Thiery, Émilie Guy, Tamy Boubekeur
Article No.: 178
DOI: 10.1145/2508363.2508384

Shape approximation algorithms aim at computing simple geometric descriptions of dense surface meshes. Many such algorithms are based on mesh decimation techniques, generating coarse triangulations while optimizing for a particular metric which...

Sparse localized deformation components
Thomas Neumann, Kiran Varanasi, Stephan Wenger, Markus Wacker, Marcus Magnor, Christian Theobalt
Article No.: 179
DOI: 10.1145/2508363.2508417

We propose a method that extracts sparse and spatially localized deformation modes from an animated mesh sequence. To this end, we propose a new way to extend the theory of sparse matrix decompositions to 3D mesh sequence processing, and further...

A general and efficient method for finding cycles in 3D curve networks
Yixin Zhuang, Ming Zou, Nathan Carr, Tao Ju
Article No.: 180
DOI: 10.1145/2508363.2508423

Generating surfaces from 3D curve networks has been a longstanding problem in computer graphics. Recent attention to this area has resurfaced as a result of new sketch based modeling systems. In this work we present a new algorithm for finding...

Urban pattern: layout design by hierarchical domain splitting
Yong-Liang Yang, Jun Wang, Etienne Vouga, Peter Wonka
Article No.: 181
DOI: 10.1145/2508363.2508405

We present a framework for generating street networks and parcel layouts. Our goal is the generation of high-quality layouts that can be used for urban planning and virtual environments. We propose a solution based on hierarchical domain splitting...

Section: Dynamics for people, plants and clothes

Versatile surface tension and adhesion for SPH fluids
Nadir Akinci, Gizem Akinci, Matthias Teschner
Article No.: 182
DOI: 10.1145/2508363.2508395

Realistic handling of fluid-air and fluid-solid interfaces in SPH is a challenging problem. The main reason is that some important physical phenomena such as surface tension and adhesion emerge as a result of inter-molecular forces in a...

Spatio-temporal extrapolation for fluid animation
Yubo Zhang, Kwan-Liu Ma
Article No.: 183
DOI: 10.1145/2508363.2508401

We introduce a novel spatio-temporal extrapolation technique for fluid simulation designed to improve the results without using higher resolution simulation grids. In general, there are rigid demands associated with pushing fluid animations to...

Interactive localized liquid motion editing
Zherong Pan, Jin Huang, Yiying Tong, Changxi Zheng, Hujun Bao
Article No.: 184
DOI: 10.1145/2508363.2508429

Animation techniques for controlling liquid simulation are challenging: they commonly require carefully setting initial and boundary conditions or performing a costly numerical optimization scheme against user-provided keyframes or animation...

Physics-based animation of large-scale splashing liquids
Dan Gerszewski, Adam W. Bargteil
Article No.: 185
DOI: 10.1145/2508363.2508430

Fluid simulation has been one of the greatest successes of physics-based animation, generating hundreds of research papers and a great many special effects over the last fifteen years. However, the animation of large-scale, splashing liquids...

Section: Dynamics for people, plants and clothes

Designing and fabricating mechanical automata from mocap sequences
Duygu Ceylan, Wilmot Li, Niloy J. Mitra, Maneesh Agrawala, Mark Pauly
Article No.: 186
DOI: 10.1145/2508363.2508400

Mechanical figures that mimic human motions continue to entertain us and capture our imagination. Creating such automata requires expertise in motion planning, knowledge of mechanism design, and familiarity with fabrication constraints. Thus,...

3D self-portraits
Hao Li, Etienne Vouga, Anton Gudym, Linjie Luo, Jonathan T. Barron, Gleb Gusev
Article No.: 187
DOI: 10.1145/2508363.2508407

We develop an automatic pipeline that allows ordinary users to capture complete and fully textured 3D models of themselves in minutes, using only a single Kinect sensor, in the uncontrolled lighting environment of their own home. Our method...

Anatomy transfer
Dicko Ali-Hamadi, Tiantian Liu, Benjamin Gilles, Ladislav Kavan, François Faure, Olivier Palombi, Marie-Paule Cani
Article No.: 188
DOI: 10.1145/2508363.2508415

Characters with precise internal anatomy are important in film and visual effects, as well as in medical applications. We propose the first semi-automatic method for creating anatomical structures, such as bones, muscles, viscera and fat tissues....

Augmenting physical avatars using projector-based illumination
Amit Bermano, Philipp Brüschweiler, Anselm Grundhöfer, Daisuke Iwai, Bernd Bickel, Markus Gross
Article No.: 189
DOI: 10.1145/2508363.2508416

Animated animatronic figures are a unique way to give physical presence to a character. However, their movement and expressions are often limited due to mechanical constraints. In this paper, we propose a complete process for augmenting physical...

Section: Dynamics for people, plants and clothes

Fine-grained semi-supervised labeling of large shape collections
Qi-Xing Huang, Hao Su, Leonidas Guibas
Article No.: 190
DOI: 10.1145/2508363.2508364

In this paper we consider the problem of classifying shapes within a given category (e.g., chairs) into finer-grained classes (e.g., chairs with arms, rocking chairs, swivel chairs). We introduce a multi-label (i.e., shapes can belong to multiple...

Efficient penetration depth approximation using active learning
Jia Pan, Xinyu Zhang, Dinesh Manocha
Article No.: 191
DOI: 10.1145/2508363.2508385

Projective analysis for 3D shape segmentation
Yunhai Wang, Minglun Gong, Tianhua Wang, Daniel Cohen-Or, Hao Zhang, Baoquan Chen
Article No.: 192
DOI: 10.1145/2508363.2508393

We introduce projective analysis for semantic segmentation and labeling of 3D shapes. The analysis treats an input 3D shape as a collection of 2D projections, labels each projection by transferring knowledge from existing labeled images,...

3D Wikipedia: using online text to automatically label and navigate reconstructed geometry
Bryan C. Russell, Ricardo Martin-Brualla, Daniel J. Butler, Steven M. Seitz, Luke Zettlemoyer
Article No.: 193
DOI: 10.1145/2508363.2508425

We introduce an approach for analyzing Wikipedia and other text, together with online photos, to produce annotated 3D models of famous tourist sites. The approach is completely automated, and leverages online text and photo co-occurrences...

Section: Dynamics for people, plants and clothes

Inverse image editing: recovering a semantic editing history from a before-and-after image pair
Shi-Min Hu, Kun Xu, Li-Qian Ma, Bin Liu, Bi-Ye Jiang, Jue Wang
Article No.: 194
DOI: 10.1145/2508363.2508371

We study the problem of inverse image editing, which recovers a semantically-meaningful editing history from a source image and an edited copy. Our approach supports a wide range of commonly-used editing operations such as cropping, object...

3-Sweep: extracting editable objects from a single photo
Tao Chen, Zhe Zhu, Ariel Shamir, Shi-Min Hu, Daniel Cohen-Or
Article No.: 195
DOI: 10.1145/2508363.2508378

We introduce an interactive technique for manipulating simple 3D shapes based on extracting them from a single photograph. Such extraction requires understanding of the components of the shape, their projections, and relations. These simple...

PatchNet: a patch-based image representation for interactive library-driven image editing
Shi-Min Hu, Fang-Lue Zhang, Miao Wang, Ralph R. Martin, Jue Wang
Article No.: 196
DOI: 10.1145/2508363.2508381

We introduce PatchNets, a compact, hierarchical representation describing structural and appearance characteristics of image regions, for use in image editing. In a PatchNet, an image region with coherent appearance is summarized by a graph...

A sparse control model for image and video editing
Li Xu, Qiong Yan, Jiaya Jia
Article No.: 197
DOI: 10.1145/2508363.2508404

It is common that users draw strokes, as control samples, to modify color, structure, or tone of a picture. We discover inherent limitation of existing methods for their implicit requirement on where and how the strokes are drawn, and present a...

WYSIWYG computational photography via viewfinder editing
Jongmin Baek, Dawid Pająk, Kihwan Kim, Kari Pulli, Marc Levoy
Article No.: 198
DOI: 10.1145/2508363.2508421

Digital cameras with electronic viewfinders provide a relatively faithful depiction of the final image, providing a WYSIWYG experience. If, however, the image is created from a burst of differently captured images, or non-linear interactive edits...

Section: Dynamics for people, plants and clothes

Image-based rendering in the gradient domain
Johannes Kopf, Fabian Langguth, Daniel Scharstein, Richard Szeliski, Michael Goesele
Article No.: 199
DOI: 10.1145/2508363.2508369

We propose a novel image-based rendering algorithm for handling complex scenes that may include reflective surfaces. Our key contribution lies in treating the problem in the gradient domain. We use a standard technique to estimate scene depth, but...

Data-driven hallucination of different times of day from a single outdoor photo
Yichang Shih, Sylvain Paris, Frédo Durand, William T. Freeman
Article No.: 200
DOI: 10.1145/2508363.2508419

We introduce "time hallucination": synthesizing a plausible image at a different time of day from an input image. This challenging task often requires dramatically altering the color appearance of the picture. In this paper, we introduce the first...

Automatic noise modeling for ghost-free HDR reconstruction
Miguel Granados, Kwang In Kim, James Tompkin, Christian Theobalt
Article No.: 201
DOI: 10.1145/2508363.2508410

High dynamic range reconstruction of dynamic scenes requires careful handling of dynamic objects to prevent ghosting. However, in a recent review, Srikantha et al. [2012] conclude that "there is no single best method and the selection of an...

Patch-based high dynamic range video
Nima Khademi Kalantari, Eli Shechtman, Connelly Barnes, Soheil Darabi, Dan B. Goldman, Pradeep Sen
Article No.: 202
DOI: 10.1145/2508363.2508402

Despite significant progress in high dynamic range (HDR) imaging over the years, it is still difficult to capture high-quality HDR video with a conventional, off-the-shelf camera. The most practical way to do this is to capture alternating...

Section: Dynamics for people, plants and clothes

Animating human lower limbs using contact-invariant optimization
Igor Mordatch, Jack M. Wang, Emanuel Todorov, Vladlen Koltun
Article No.: 203
DOI: 10.1145/2508363.2508365

We present a trajectory optimization approach to animating human activities that are driven by the lower body. Our approach is based on contact-invariant optimization. We develop a simplified and generalized formulation of contact-invariant...

Evaluating the distinctiveness and attractiveness of human motions on realistic virtual bodies
Ludovic Hoyet, Kenneth Ryall, Katja Zibrek, Hwangpil Park, Jehee Lee, Jessica Hodgins, Carol O'Sullivan
Article No.: 204
DOI: 10.1145/2508363.2508367

Recent advances in rendering and data-driven animation have enabled the creation of compelling characters with impressive levels of realism. While data-driven techniques can produce animations that are extremely faithful to the original motion,...

The line of action: an intuitive interface for expressive character posing
Martin Guay, Marie-Paule Cani, Rémi Ronfard
Article No.: 205
DOI: 10.1145/2508363.2508397

The line of action is a conceptual tool often used by cartoonists and illustrators to help make their figures more consistent and more dramatic. We often see the expression of characters---may it be the dynamism of a super hero, or the...

Flexible muscle-based locomotion for bipedal creatures
Thomas Geijtenbeek, Michiel van de Panne, A. Frank van der Stappen
Article No.: 206
DOI: 10.1145/2508363.2508399

We present a muscle-based control method for simulated bipeds in which both the muscle routing and control parameters are optimized. This yields a generic locomotion control method that supports a variety of bipedal creatures. All actuation forces...

Robust realtime physics-based motion control for human grasping
Wenping Zhao, Jianjie Zhang, Jianyuan Min, Jinxiang Chai
Article No.: 207
DOI: 10.1145/2508363.2508412

This paper presents a robust physics-based motion control system for realtime synthesis of human grasping. Given an object to be grasped, our system automatically computes physics-based motion control that advances the simulation to achieve...

Section: Dynamics for people, plants and clothes

On-the-fly multi-scale infinite texturing from example
Kenneth Vanhoey, Basile Sauvage, Frédéric Larue, Jean-Michel Dischler
Article No.: 208
DOI: 10.1145/2508363.2508383

In computer graphics, rendering visually detailed scenes is often achieved through texturing. We propose a method for on-the-fly non-periodic infinite texturing of surfaces based on a single image. Pattern repetition is avoided by defining patches...

Anisotropic spherical Gaussians
Kun Xu, Wei-Lun Sun, Zhao Dong, Dan-Yong Zhao, Run-Dong Wu, Shi-Min Hu
Article No.: 209
DOI: 10.1145/2508363.2508386

We present a novel anisotropic Spherical Gaussian (ASG) function, built upon the Bingham distribution [Bingham 1974], which is much more effective and efficient in representing anisotropic spherical functions than Spherical Gaussians...

GPU-based out-of-core many-lights rendering
Rui Wang, Yuchi Huo, Yazhen Yuan, Kun Zhou, Wei Hua, Hujun Bao
Article No.: 210
DOI: 10.1145/2508363.2508413

In this paper, we present a GPU-based out-of-core rendering approach under the many-lights rendering framework. Many-lights rendering is an efficient and scalable rendering framework for a large number of lights. But when the data sizes of lights...

Linear efficient antialiased displacement and reflectance mapping
Jonathan Dupuy, Eric Heitz, Jean-Claude Iehl, Pierre Poulin, Fabrice Neyret, Victor Ostromoukhov
Article No.: 211
DOI: 10.1145/2508363.2508422

We present Linear Efficient Antialiased Displacement and Reflectance (LEADR) mapping, a reflectance filtering technique for displacement mapped surfaces. Similarly to LEAN mapping, it employs two mipmapped texture maps, which store the first two...

Section: Dynamics for people, plants and clothes

Modeling and estimation of internal friction in cloth
Eder Miguel, Rasmus Tamstorf, Derek Bradley, Sara C. Schvartzman, Bernhard Thomaszewski, Bernd Bickel, Wojciech Matusik, Steve Marschner, Miguel A. Otaduy
Article No.: 212
DOI: 10.1145/2508363.2508389

Force-deformation measurements of cloth exhibit significant hysteresis, and many researchers have identified internal friction as the source of this effect. However, it has not been incorporated into computer animation models of cloth. In this...

An efficient construction of reduced deformable objects
Christoph von Tycowicz, Christian Schulz, Hans-Peter Seidel, Klaus Hildebrandt
Article No.: 213
DOI: 10.1145/2508363.2508392

Many efficient computational methods for physical simulation are based on model reduction. We propose new model reduction techniques for the approximation of reduced forces and for the construction of reduced shape spaces of deformable...

Fast simulation of mass-spring systems
Tiantian Liu, Adam W. Bargteil, James F. O'Brien, Ladislav Kavan
Article No.: 214
DOI: 10.1145/2508363.2508406

We describe a scheme for time integration of mass-spring systems that makes use of a solver based on block coordinate descent. This scheme provides a fast solution for classical linear (Hookean) springs. We express the widely used implicit Euler...

Simulation and control of skeleton-driven soft body characters
Libin Liu, KangKang Yin, Bin Wang, Baining Guo
Article No.: 215
DOI: 10.1145/2508363.2508427

In this paper we present a physics-based framework for simulation and control of human-like skeleton-driven soft body characters. We couple the skeleton dynamics and the soft body dynamics to enable two-way interactions between the skeleton, the...

Section: Dynamics for people, plants and clothes

Bilateral blue noise sampling
Jiating Chen, Xiaoyin Ge, Li-Yi Wei, Bin Wang, Yusu Wang, Huamin Wang, Yun Fei, Kang-Lai Qian, Jun-Hai Yong, Wenping Wang
Article No.: 216
DOI: 10.1145/2508363.2508375

Blue noise sampling is an important component in many graphics applications, but existing techniques consider mainly the spatial positions of samples, making them less effective when handling problems with non-spatial features. Examples include...

Halftone QR codes
Hung-Kuo Chu, Chia-Sheng Chang, Ruen-Rone Lee, Niloy J. Mitra
Article No.: 217
DOI: 10.1145/2508363.2508408

QR code is a popular form of barcode pattern that is ubiquitously used to tag information to products or for linking advertisements. While, on one hand, it is essential to keep the patterns machine-readable; on the other hand, even small changes...

Interactive by-example design of artistic packing layouts
Bernhard Reinert, Tobias Ritschel, Hans-Peter Seidel
Article No.: 218
DOI: 10.1145/2508363.2508409

We propose an approach to "pack" a set of two-dimensional graphical primitives into a spatial layout that follows artistic goals. We formalize this process as projecting from a high-dimensional feature space into a 2D layout. Our system does not...

Biharmonic diffusion curve images from boundary elements
Peter Ilbery, Luke Kendall, Cyril Concolato, Michael McCosker
Article No.: 219
DOI: 10.1145/2508363.2508426

There is currently significant interest in freeform, curve-based authoring of graphic images. In particular, "diffusion curves" facilitate graphic image creation by allowing an image designer to specify naturalistic images by drawing curves and...

Section: Dynamics for people, plants and clothes

Near-eye light field displays
Douglas Lanman, David Luebke
Article No.: 220
DOI: 10.1145/2508363.2508366

We propose near-eye light field displays that enable thin, lightweight head-mounted displays (HMDs) capable of presenting nearly correct convergence, accommodation, binocular disparity, and retinal defocus depth cues. Sharp images are depicted by...

Joint view expansion and filtering for automultiscopic 3D displays
Piotr Didyk, Pitchaya Sitthi-Amorn, William Freeman, Frédo Durand, Wojciech Matusik
Article No.: 221
DOI: 10.1145/2508363.2508376

Multi-view autostereoscopic displays provide an immersive, glasses-free 3D viewing experience, but they require correctly filtered content from multiple viewpoints. This, however, cannot be easily obtained with current stereoscopic production...

A metric of visual comfort for stereoscopic motion
Song-Pei Du, Belen Masia, Shi-Min Hu, Diego Gutierrez
Article No.: 222
DOI: 10.1145/2508363.2508387

We propose a novel metric of visual comfort for stereoscopic motion, based on a series of systematic perceptual experiments. We take into account disparity, motion in depth, motion on the screen plane, and the spatial frequency of luminance...

Stereoscopizing cel animations
Xueting Liu, Xiangyu Mao, Xuan Yang, Linling Zhang, Tien-Tsin Wong
Article No.: 223
DOI: 10.1145/2508363.2508396

While hand-drawn cel animation is a world-wide popular form of art and entertainment, introducing stereoscopic effect into it remains difficult and costly, due to the lack of physical clues. In this paper, we propose a method to synthesize...