Browsing EG2003 by Title

Now showing items 59-78 of 113

    • Mobile Augmented Reality for Environmental Management (MARE) 

      Danado, Jose; Dias, Eduardo; Romao, Teresa; Correia, Nuno; Trabuco, Adelaide; Santos, Carlos; Araujo, David; Duarte, Pedro; Rebocho, Rui; Palmeiro, Jose; Serpa, Joao; Costa, Manuel; Camara, Antonio (Eurographics Association, 2003)
      Access to real-time data while in field observations is often a requested issue in environmental management. Additionally, it is easier to see that information spatially distributed where it makes sense, leveraging users ...

    • Morphing Rational B-spline Curves and Surfaces Using Mass Distributions 

      Ju, Tao; Goldman, Ron (Eurographics Association, 2003)
      A rational B-spline curve or surface is a collection of points associated with a mass (weight) distribution. These mass distributions can be used to exert local control over the morph between two rational B-spline curves ...

    • Motion Planning and Visibility Problems using the Polar Diagram 

      Grima, C.I.; Márquez, A.; Ortega, L. (Eurographics Association, 2003)
      Motion planning and visibility problems are some of the most important topics studied in Computer Graphics, Computational Geometry and Robotics. There exits several and important results to these problems. We propose a new ...

    • Multi-resolution modelling of terrains by using non restricted quadtree triangulation 

      Aguilera, A.; Torres, J. C.; Feito, F. (Eurographics Association, 2003)
      The interactive visualization of terrains requires the processing of a high amount of data in real time, usually it is not possible to work with all of them on main in memory. In this work we present, a method which solves ...

    • Multilevel modelling and rendering of architectural scenes 

      Kushal, Akash M.; Chanda, Gaurav; Shrivastava, Kanishka; Gupta, Mohit; Sanyal, Subhajit; Sriram, T. V. N.; Kalra, Prem; Banerjee, Subhashis (Eurographics Association, 2003)
      We present a novel approach for multilevel modelling and rendering of architectural scenes using a small set of photographs. Our approach is based on interactive probing of intuitive measures like lengths, widths and heights ...

    • A New 3D Spring for Deformable Object Animation 

      Jeong, Il-Kwon; Lee, Inho (Eurographics Association, 2003)
      A new3D spring for deformable object animation is proposed. Currently mass-spring system is most widely used in a deformable object animation as well as cloth animation. In order to perform a realistic cloth animation using ...

    • Non-Photorealistic Rendering 

      Eißele, Mike (Eurographics Association, 2003)
      • Focus of this talk – Silhouette rendering – Cartoon shading – Hatching – Charcoal rendering – Image-space filter operations – Dither screens

    • Obscurances for ray-tracing 

      Mendez, A.; Sbert, M.; Neumann, L. (Eurographics Association, 2003)
      We present a powerful method to create realistic-looking pictures of scenes with objects that have diffuse and non-diffuse properties. The method recreates the obscurances technique, introduced some years ago, with a new ...

    • Occlusion Culling for Image-Based Rendering withWarping 

      Soner, I. Sen; Atalay, Volkan (Eurographics Association, 2003)
      The basic idea of the proposed algorithm is to reduce the number of depth pixels in Layer Depth Images (LDI) by culling the occluded ones before warping. The method combines the octree spatial subdivision concept with LDI ...

    • On the characterization of avatars in Distributed Virtual Worlds 

      Morillo, Pedro; Fernandez, Marcos; Orduna, Juan Manuel (Eurographics Association, 2003)
      Current Distributed Virtual Environment (DVE) systems run simulations based on a server-network architecture, where the population of avatars should be properly assigned to the servers in the DVE. This goal, called ...

    • Open Issues in Photo-realistic Rendering 

      Purgathofer, Werner (Eurographics Association, 2003)
      For more than two decades Computer graphics researchers have tried to achieve photo-realism in their images as reliable as possible, mainly by simulating the physical laws of light and adding one effect after the other. ...

    • Parallel Visibility Test and Occlusion Culling in Avango Virtual Environment Framework 

      Klimenko, Stanislav; Nikitina, Lialia; Nikitin, Igor (Eurographics Association, 2003)
      Real-time visibility test is an attractive feature for Virtual Environment (VE) applications where large datasets should be interactively explored. In such scenes most of the objects are usually occluded by other ones, and ...

    • Parameter-driven freeform deformations 

      Song, Y.; Vergeest, J.S.M.; Saakes, D.P. (Eurographics Association, 2003)
      High-level parameters offer user an easy and intuitive tool to modify an existing model. In this paper, an approach of deforming freeform shapes using intrinsic parameters is proposed, where those parameters were not part ...

    • Parametric Foveation for Progressive Texture and Model Transmission 

      Cheng, Irene; Basu, Anup; Pan, Yixin (Eurographics Association, 2003)
      Spatially varying sensing (foveation) has been used in many different areas of Computer Vision, such as image compression and video teleconferencing and in perceptually driven Level of Detail (LOD) representations in ...

    • Particle-based Collision Detection 

      Senin, Mikhail; Nikita, Kojekine; Savchenko, Vladimir; Hagiwara, Ichiro (Eurographics Association, 2003)
      In the paper we present a novel algorithm for collision detection between complex geometric objects represented by polygonal models and undergoing rigid motions and deformations. Most algorithms described in the literature ...

    • Pedagogic discrete visualization of electromagnetic waves 

      Mora, F.; Ruillet, G.; Andres, E.; Vauzelle, R. (Eurographics Association, 2003)
      A dynamic electromagnetic wave propagation visualization tool is presented in this paper. It can simulate wave reflection and diffraction in 2D. It allows to visualize the electric field magnitude. The original approach ...

    • Pen and Ink Pictures from Gray-Scale Photographs 

      Arroyo, G.; Martín, D. (Eurographics Association, 2003)
      A new method for producing pen and ink pictures from gray-scale photographs is introduced in this article. It is based on path-finding and reconstruction of strokes. First we apply filters to extract contours from photographs ...

    • Persepolis: Recovering history with a handheld camera 

      Sainz, M.; Susin, A.; Cervantes, A.; Bagherzadeh, N. (Eurographics Association, 2003)
      In this paper we present new improvements to our novel pipeline for image based modeling of objects using a camcorder. Our system takes an uncalibrated sequence of images recorded around a scene, it automatically recovers ...

    • Photorealistic Augmented Reality 

      Gibson, Simon; Chalmers, Alan (Eurographics Association, 2003)
      Augmenting real-world images with synthetic objects is becoming of increasing importance in both research and commercial applications, and encompasses aspects of fields such as mobile camera and display technology, computer ...

    • Point in Solid Tests for Triangle Meshes. Comparative Study 

      Ogayar, Carlos J.; Segura, Rafael J.; Feito, Francisco R. (Eurographics Association, 2003)
      This document presents a comparative study of several point inclusion tests for triangle meshes. We also discuss some issues about the usefulness of each method depending on the situation, taking into account memory and ...