• Occluder Shadows for Fast Walkthroughs of Urban Environments 

  Wonka, Peter; Schmalstieg, Dieter (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  This paper describes a new algorithm that employs image-based rendering for fast occlusion culling in complex urban environments. It exploits graphics hardware to render and automatically combine a relatively large set of ...

• Creating Architectural Models from Images 

  Liebowitz, David; Criminisi, Antonio; Zisserman, Andrew (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  We present methods for creating 3D graphical models of scenes from a limited numbers of images, i.e. one or two, in situations where no scene co-ordinate measurements are available. The methods employ constraints available ...

• An Efficient and Flexible Perception Pipeline for Autonomous Agents 

  Bordeux, Christophe; Boulic, Ronan; Thalmann, Daniel (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  Agents in virtual environments require a combination of perception and action to behave in an autonomous way. We extend a software architecture for the management of actions blending, called AGENTlib, with a perception ...

• An Efficient 2? D rendering and Compositing System 

  Froumentin, M.; Willis, P. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  We describe a method for doing image compositing using either 2D geometric shapes or raster images as input primitives. The resolution of the final image is virtually unlimited but, as no frame buffer is used, performance ...

• Fast Lines: a Span by Span Method 

  Boyer, V.; Bourdin, J.J. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  Straight line's scan conversion and drawing is a major field in computer graphics. Algorithm's time computation is very important. Nowadays, most of research papers suggest improvements of the DDA method that was first ...

• Interactive Cuts through 3-Dimensional Soft Tissue 

  Bielser, Daniel; Maiwald, Volker A.; Gross, Markus H. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  We describe a physically based framework for interactive modeling and cutting of 3-dimensional soft tissue that can be used for surgery simulation. Unlike existing approaches which are mostly designed for tensorproduct ...

• Comprehensive Halftoning of 3D Scenes 

  Veryovka, O.; Buchanan, J. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  The display of images on binary output hardware requires a halftoning step. Conventional halftoning algorithms approximate image values independently from the image content and often introduce artificial texture that ...

• Interactive Line Art Rendering of Freeform Surfaces 

  Elber, Gershon (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  In recent years, synthetically created line art renderings have reached quality levels that are aesthetically pleasing. Moreover, the sketch based approach was found to be quite capable at conveying geometrical information ...

• Fast Polyhedral Cell Sorting for Interactive Rendering of Unstructured Grids 

  Comba, Joao; Klosowsk, James T.; Max, Nelson; Mitchell, Joseph S. B.; Silva, Claudio T.; Williams, Peter L. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  Direct volume rendering based on projective methods works by projecting, in visibility order, the polyhedral cells of a mesh onto the image plane, and incrementally compositing the cell's color and opacity into the final ...

• Efficient and Handy Texture Mapping on 3D Surfaces 

  Matsushita, Kenji; Kaneko, Toyohisa (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  There has been a rapid technical progress in three-dimensional (3D) computer graphics. But gathering surface and texture data is yet a laborious task. This paper addresses the problem of mapping photographic images on the ...

• Data Intermixing and Multi-volume Rendering 

  Cai, Wenli; Sakas, Georgios (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  The main difference between multi-volume rendering and mono-volume rendering is data intermixing. In this paper, we present three levels of data intermixing and their rendering pipelines in direct multi-volume rendering, ...

• Image Morphing with Feature Preserving Texture 

  Tal, Ayellet; Elber, Gershon (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  Image metamorphosis as an animation tool has mostly been employed in the context of the entire image. This work explores the use of isolated and focused image based metamorphosis between two-dimensional objects, while ...

• Seamless Integration of Databases in VR for Constructing Virtual Environments 

  Soetebier, Ingo; Dorner, Ralf; Braun, Norbert (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  An approach for authoring virtual environments within the virtual environments themselves is presented, integrating a database containing arbitrary components that are used to construct the 3D scene. The issues important ...

• An Informed Environment Dedicated to the Simulation of Virtual Humans in Urban Context 

  Farenc, Nathalie; Boulic, Ronan; Thalmann, Daniel (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  In this paper, we outline the creation of an Informed Environment, dedicated to urban life simulation.We propose methods and tools for creating and providing the information necessary for animating virtual humans in a city ...

• Partitioning and Handling Massive Models for Interactive Collision Detection 

  Wilson, A.; Larsen, E.; Manocha, D.; Lin, M. C. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  We describe an approach for interactive collision detection and proximity computations on massive models composed of millions of geometric primitives. We address issues related to interactive data access and processing in ...

• The Hybrid World of Virtual Environments 

  Smith, Shamus; Duke, David; Massink, Mieke (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  Much of the work concerned with virtual environments has addressed the development of new rendering technologies or interaction techniques. As the technology matures and becomes adopted in a wider range of applications, ...

• Interactive Mechanical Design Variation for Haptics and CAD 

  Nelson, Donald D.; Cohen, Elaine (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  A fast design variation technique for mechanical systems is presented. It is used to interactively optimize mechanical characteristics while "self-assembling" or satisfying large systems of mechanical constraints. The high ...

• Active Storytelling 

  Glassner, Andrew (Blackwell Publishers Ltd and the Eurographics Association, 1999)

• A Translucent Sketchpad for the Virtual Table Exploring Motion-based Gesture Recognition 

  Encarnacao, L. M.; Bimber, O.; Schmalstieg, D.; Chandler, S. D. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  The Virtual Table presents stereoscopic graphics to a user in a workbench-like setting. For this device, a user interface and new interaction techniques have been developed based on transparent props -a tracked hand-held ...

• A New Method of Image Mosaicking and Its Application to Cultural Heritage Representation 

  Cortelazzo, G.M.; Lucchese, L. (Blackwell Publishers Ltd and the Eurographics Association, 1999)

  This paper presents an original two-step procedure for estimating projective transformations between pairs of images: first, the transformation between the images is approximated as an affine transformation; second, this ...

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