7,833 Works

A Study of Transfer Function Generation for Time-Varying Volume Data

T.J. Jankun-Kelly & Kwan-Liu Ma
The proper usage and creation of transfer functions for time-varying data sets is an often ignored problem in volume visualization. Although methods and guidelines exist for time-invariant data, little formal study for the timevarying case has been performed. This paper examines this problem, and reports the study that we have conducted to determine how the dynamic behavior of time-varying data may be captured by a single or small set of transfer functions. The criteria which...
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Obscurances for ray-tracing

A. Mendez, M. Sbert & L. Neumann
Eurographics 2003 - Posters
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Managing Temporal Change of Cities with CityGML

Maxime Morel & Gilles Gesquière
Eurographics Workshop on Urban Data Modelling and Visualisation
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Solving General ShallowWave Equations on Surfaces

Huamin Wang, Gavin Miller & Greg Turk
Eurographics/SIGGRAPH Symposium on Computer Animation
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Tablet Fish Tank Virtual Reality: a Usability Study

Sirisilp Kongsilp, Mintra Ruensuk, Matthew N. Dailey & Takashi Komuro
In this paper, we describe the development a tablet FTVR prototype that incorporates both motion parallax and stereo cues with the use of easy-to-find hardware. We also present findings of a usability study based on the prototype.
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SUDS - SUrface Description System

Henry P. Moretonl & R. Daniel Bergeron
Eurographics Conference Proceedings
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Tessellation of Curved Surfaces under Highly Varying Transformations

Salim S. Abi-Ezzi & Leon A. Shirman
We pursue the problem of step size determination for tessellating arbitrary degree polynomial and rational Bezier patches, under highly varying modeling and viewing transformations, to within post-viewing size and/or deviation thresholds specified in display coordinates. The technique involves the computation of derivative bounds of surfaces in modeling coordinates, and the mapping of these bounds into world coordinates (or lighting coordinates), where tessellation takes place by using norms of modeling transformations. A key result of this...
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Adaptive Hierarchical Shape Matching

Yuan Tian, Yin Yang, Xiaohu Guo & Balakrishnan Prabhakaran
In this paper, we present an adaptive hierarchical method allowing users to interact with geometrically complex 3D deformable objects based on an extended shape matching approach. Our method extends the existing multiresolution shape matching methods with improved energy convergence rate. This is achieved by using adaptive integration strategies to avoid insignificant shape matching iterations during the simulation. As demonstrated in our experimental results, the proposed method provides an efficient yet stable deformable simulation of complex...
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Toward Realistic Formal Specifications for Non-Trivial Graphical Objects

Eugene Fiume
Formal specification has long been advocated in programming methodology, and is becoming increasingly popular in computer graphics to characterise the semantics of components of graphics systems. Unfortunately, formal specifications tend to sacrifice realism for abstraction. The result is often a specification that is not as relevant to real graphics systems as it could be. This paper suggests that the use of sharper mathematical tools, together with the use of object orientation (i.e., data abstraction with...
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Physically-Based Depth of Field in Augmented Reality

Peter Kán & Hannes Kaufmann
Eurographics 2012 - Short Papers
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Real Time Phong Shading

Ute Claussen
Eurographics Workshop on Graphics Hardware
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Optimized Sampling for View Interpolation in Light Fields with Overlapping Patches

David C. Schedl & Oliver Bimber
Optimized sampling masks that reduce the complexity of camera arrays while preserving the quality of light fields captured at high directional sampling resolution are presented. We propose a new quality metric that is based on sampling-theoretic considerations, a new mask estimation approach that reduces the search space by applying regularity and symmetry constraints, and an enhanced upsampling technique using compressed sensing that supports maximal patch overlap. Our approach out-beats state-of-the-art view-interpolation techniques for light fields...
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Interactive Animation of Dynamic Manipulation

Yeuhi Abe & Jovan Popovic
ACM SIGGRAPH / Eurographics Symposium on Computer Animation
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How to Time Travel in Highly Immersive Virtual Reality

Rodrigo Pizarro, Keren-Or Berkers, Mel Slater & Doron Friedman
What would it be like to be able to time travel to the past, meet your previous self, and override your previous actions in order to achieve a better outcome? While we cannot (yet?) achieve physical time travel, digital technologies now allow us to experience virtual time travel. We have developed a method for implementing time travel in highly immersive virtual reality (VR) and here we describe the underlying technology in the context of a...
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Computational Color Harmony based on Coloroid System

László Neumann, Antal Nemcsics & Attila Neumann
Computational Aesthetics in Graphics, Visualization and Imaging
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Using Photographs to Enhance Videos of a Static Scene

Pravin Bhat, C. Lawrence Zitnick, Noah Snavely, Aseem Agarwala, Maneesh Agrawala, Michael Cohen, Brian Curless & Sing Bing Kang
Rendering Techniques
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An Application to Compare the Past and Present of Townscapes

Mari Endo, Kiyofumi Motoyama, Mamoru Endo & Takami Yasuda
Townscapes change from one instance to another, and the data of change, like photos and maps, is kept and archived in museums and libraries. In this research, we focus on archived photo data and, by developing a smartphone application, provide an environment to allow people to experience the change of townscapes in real towns. This smartphone application gives people the opportunity to learn about the history of cities and to consider the townscapes. After showing...
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Pano2Vid: Automatic Cinematography for Watching 360° Videos

Yu-Chuan Su, Dinesh Jayaraman & Kristen Grauman
We introduce the novel task of Pano2Vid --- automatic cinematography in panoramic 360° videos. Given a 360° video, the goal is to direct an imaginary camera to virtually capture natural-looking normal field-of-view (NFOV) video. By selecting "where to look" within the panorama at each time step, Pano2Vid aims to free both the videographer and the end viewer from the task of determining what to watch. Towards this goal, we first compile a dataset of 360°...
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Dent Removal: Geodesic Curve-Based Mesh Fairing

Dmitriy Pinskiy
Eurographics 2009 - Short Papers
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A Formal Specification of a Boundary Representation

Peter Baumann
Geometric modellers are used in a wide spectrum of applications in computer graphics. As many other applications use the generated internal representation of solids, semantic correctness is of special importance. On the other hand, the methodology of formal specification offers, in particular, the advantage of ensuring correctness by mathematical means. It is therefore a good idea to formally specify a geometric modeller. This paper describes an abstract data type defining a boundary representation. Special attention...
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Judgment Error in Pie Chart Variations

Robert Kosara & Drew Skau
Pie charts and their variants are prevalent in business settings and many other uses, even if they are not popular with the academic community. In a recent study, we found that contrary to general belief, there is no clear evidence that these charts are read based on the central angle. Instead, area and arc length appear to be at least equally important. In this paper, we build on that study to test several pie chart...
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Approximating Poisson Disk Distributions by Means of a Stochastic Dither Array

Jennifer R. Alford & David G. Sheppard
Theory and Practice of Computer Graphics
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Differential Ray Marching

Adolfo Muñoz
Spanish Computer Graphics Conference
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Hybrid Ambient Occlusion

Christoph K. Reinbothe, Tamy Boubekeur & Marc Alexa
Eurographics 2009 - Areas Papers
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A Multiple Application Graphics Integrated Circuit - MAGIC

M. Agate, H.R. Finch, A.A. Garel, R.L. Grimsdale, A.C. Simmonds & P. F. Lister
Eurographics Conference Proceedings
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