Browsing Short Presentations by Title

Now showing items 1-20 of 50

    • Adaptive Compression of Human Animation Data 

      Ahmed, Amr Adel Hassan; Hilton, Adrian; Mokhtarian, Farzin (Eurographics Association, 2002)
      In this paper we introduce an adaptive motion compression technique using the discrete wavelet transform. Based on the analysis of human animation data, and its frequency contents, the wavelet analysis is utilised to achieve ...

    • Adaptive Tessellation for Trimmed NURBS Surface 

      YingLiang, Ma; Hewitt, Terry (Eurographics Association, 2002)
      We present an adaptive method for tessellating the trimmed NURBS surface in the parametric domain. Given a model space tolerance ε, the algorithm first splits the NURBS surface in both the U and V directions to fit within ...

    • Automated Enhancement of 3D Models 

      Torres-Mendez, L.A.; Dudek, G. (Eurographics Association, 2002)
      The acquisition of a 3D model of a real environment can be accomplished using range sensors. In practice, suitable sensors to densely cover a large environment are often impractical. This paper presents ongoing work on the ...

    • Automatic Data Acquisition and Visualization for Usability Evaluation of Virtual Reality Systems 

      Holm, Roland; Priglinger, Markus; Stauder, Erwin; Volkert, J.; Wagner, R. (Eurographics Association, 2002)
      Evaluating the usability of a Virtual Reality system is a common practice nowadays. However, gathering and analyzing the necessary data are time-consuming tasks and sometimes involve inconvenient changes to the system. The ...

    • Concise Tour to the Virtual Old Prague 

      Zara, Jiri (Eurographics Association, 2002)
      This paper describes a structure and a user interface of the Internet based 3D presentation of existing historical part of city Prague. The application offers a smooth tour to selected regions of the real city, utilizing ...

    • A Convolution-Based Algorithm for Animated Water Waves 

      Loviscach, Jörn (Eurographics Association, 2002)
      A non-linear partial differential equation solver is too sophisticated for computer graphics applications if they are only used to render effects like circular waves and ship wakes. We present an approach which simulates ...

    • Dependent Tests Driven Filtering in Monte-Carlo Global Illumination 

      Csonka, Ferenc; Szirmay-Kalos, Laszlo; Kelemen, Csaba; Antal, György (Eurographics Association, 2002)
      This paper presents a multi-phase algorithm to solve the global illumination problem. In the first phase dependent tests are applied, i.e. the random walks of different pixels are built from the same random numbers. The ...

    • Digital Watermarking for Volumetric Datasets 

      Dimitrov, Leonid I.; Sramek, Milos (Eurographics Association, 2002)
      An idea for digitaly watermarking volumetric datasets (VDS) and preliminary results from a test implementation are presented. It consists of a combination of filtering and rendering operations on volumetric data allowing ...

    • Distance fields applied to character animation 

      Rudomin, Isaac; Castillo, J. (Eurographics Association, 2002)
      A general hybrid geometric-physical method that is useful for animating characters with skin, clothing and a MPEG-4 compatible face is presented. This method uses an approximation to the underlying musculo-skeletal structure ...

    • Dynamic Motion Models 

      Grünvogel, Stefan Michael; Lange, Thorsten; Piesk, Jens (Eurographics Association, 2002)
      Real-time animation of virtual characters is a demanding task. We propose dynamic motion models which can create the motion of a virtual character in different styles and have the ability to change the animation while it ...

    • Dynamics-Based Motion Synthesis by Simple Learning Control 

      Kiriazov, Petko (Eurographics Association, 2002)
      Point-to-point motion of a humanoid agent (or any mobile creature) is considered as a composition of basic movements related to the degrees of freedom. With time/energy performance criteria, such movements can be synthesized ...

    • Extraction of Critical Points and Nets Based on Discrete Gradient Vector Field 

      De Floriani, Leila; Mesmoudi, Mohammed Mostefa; Danovaro, Emanuele (Eurographics Association, 2002)
      In this paper we address the problem of representing the topology of discrete scalar fields defined on triangulated domains. To this aim, we use the notion of discrete gradient vector field that we have introduced in [4] ...

    • Fast Volume Carving 

      Pyo, Soon Hyoung; Shin, Yeong Gil (Eurographics Association, 2002)
      In recent years, the volumetric scene representation has been widely used in the fields of computer graphics and computer vision. In computer graphics, the representation is used to visualize and reconstruct 3D internal ...

    • Feature interference in free form template matching 

      Song, Y.; Vergeest, J. S. M.; Horvath, I. (Eurographics Association, 2002)
      Template matching is a useful method in the reconstruction of free form surfaces. In this paper, matching of free form surfaces with parameterized templates is studied with the emphasis on feature interference. By their ...

    • Flexible bump map capture from video 

      Paterson, James Alexander; Fitzgibbon, Andrew W. (Eurographics Association, 2002)
      We extend recent techniques for the automated capture of surface normal maps or bump maps from real-world material samples. In contrast to recent systems, which have required cumbersome laboratory setups with careful ...

    • Frame-Coherent Stippling 

      Meruvia Pastor, Oscar E.; Strothotte, Thomas (Eurographics Association, 2002)
      Stippling is an artistic rendering technique where shading and texture is given by placing points or stipples on the canvas until the desired darkness is achieved. Computer-generated stippling has focused on producing high ...

    • From Textual Chats to Interest Groups in 3D Virtual Space 

      Masa, Michal; Zara, Jiri (Eurographics Association, 2002)
      While the textual chat is a highly popular tool for various kinds of social interactions, its extension to the visual three-dimensional domain remains almost untouched and without practical utilization yet. This paper ...

    • Function-defined shape node for VRML 

      Lai, Feng Min; Sourin, Alexei (Eurographics Association, 2002)
      This paper describes how the web-based visualisation can be greatly improved using the function-based shape modelling technique. We propose the function-defined VRML shape node, which allows the content creators to describe ...

    • Geometric Simplification of Foliage 

      Remolar, Inmaculada; Chover, Miguel; Belmonte, Oscar; Ribelles, Jose; Rebollo, Cristina (Eurographics Association, 2002)
      One of the most important challenges in real-time rendering of outdoor scenes is the representation of vegetation. This is due to the vast amount of polygons that are used to model vegetable species. The present automatic ...

    • Hardware-Assisted Relief Texture Mapping 

      Fujita, Masahiro; Kanai, Takashi (Eurographics Association, 2002)
      Image-Based Rendering by Warping (IBRW) creates three-dimensional scene by deforming several 2D images with depth information. Image-based rendering has an advantage compared to traditional polygon rendering that the ...