Now showing items 148-167 of 542

    • EasySLAM 

      Fathi, Alireza; Cunningham, Alex; Paluri, Balmanohar; Ni, Kai; Dellaert, Frank (Georgia Institute of Technology, 2010)
      EasySLAM is a robust, accurate, efficient and easy-to-use visual SLAM framework which uses the unique properties of planar landmarks to navigate robots in societal settings. Due to the use of landmarks which can be ...
    • Edge-Sharpener: Recovering Sharp Features in Triangulations of Non-adaptively Re-meshed Surfaces 

      Attene, Marco; Falcidieno, B. (Bianca); Rossignac, Jaroslaw R.; Spagnuolo, Michela (Georgia Institute of Technology, 2003)
      3D scanners, iso-surface extraction procedures, and several recent geometric compression schemes sample surfaces of 3D shapes in a regular fashion, without any attempt to align the samples with the sharp edges and corners ...
    • Edgebreaker on a Corner Table: A Simple Technique for Representing and Compressing Triangulated Surfaces 

      Rossignac, Jaroslaw R.; Safanova, Alla; Szymczak, Andrzej (Georgia Institute of Technology, 2001)
      A triangulated surface S with V vertices is sometimes stored as a list of T independent triangles, each described by the 3 floating-point coordinates of its vertices. This representation requires about 576V bits and provides ...
    • Edgebreaker: A Simple Compression for Surfaces with Handles 

      Rossignac, Jaroslaw R.; Lopes, Helio; Safanova, Alla; Tavares, Geovan; Szymczak, Andrzej (Georgia Institute of Technology, 2002)
      The Edgebreaker is an efficient scheme for compressing triangulated surfaces. A surprisingly simple implementation of Edgebreaker has been proposed for surfaces homeomorphic to a sphere. It uses the Corner-Table data ...
    • EDGEBREAKER: Compressing the Incidence Graph of Triangle Meshes 

      Rossignac, Jaroslaw R. (Georgia Institute of Technology, 1998)
      Edgebreaker is a simple scheme for compressing the triangle/vertex incidence graphs (sometimes called topology) of three-dimensional triangle meshes. Edgebreaker improves upon the worst case and the expected compression ...
    • Edgebreaker: Connectivity Compression for Triangle Meshes 

      Rossignac, Jaroslaw R. (Georgia Institute of Technology, 1998)
      Edgebreaker is a simple scheme for compressing the triangle/vertex incidence graphs (sometimes called connectivity or topology) of three-dimensional triangle meshes. Edgebreaker improves upon the worst case storage required ...
    • Education-Driven Research in CAD 

      Rossignac, Jaroslaw R. (Georgia Institute of Technology, 2003)
      We argue for a new research category, which we call Education-Driven Research (abbreviated EDR), which fills the gap between traditional Research in any specific field (such as CAD), which is concerned with educational ...
    • The Educational Value of an Information-Rich Virtual Environment 

      Bowman, Douglas A.; Wineman, Jean Davison; Hodges, Larry F. (Georgia Institute of Technology, 1998)
      "Information-rich" virtual environments consist not only of three-dimensional graphics and other spatial data, but also include information of an abstract or symbolic nature that is related to the space. We present evidence ...
    • Effectiveness of Peripheral Level of Detail Degradation When Used with Head-Mounted Displays 

      Watson, Benjamin A. (Benjamin Allen); Walker, Neff; Hodges, Larry F.; Worden, Aileen (Georgia Institute of Technology, 1996)
      Two user studies were performed to evaluate the effectiveness of level of detail (LOD) degradation in the periphery of head-mounted displays. In the first study, spatial detail was degraded by reducing resolution. In the ...
    • The Effects of Conversations with Regulars and Administrators on the Participation of New Users in a Virtual Learning Community 

      Medynskiy, Yevgeniy (Eugene); Bruckman, Amy S. (Georgia Institute of Technology, 2007)
      Recent interest in synchronous collaborative learning environments prompts an examination of users' participation, social roles, and social interactions in these spaces. We analyze new users' participation rates on MOOSE ...
    • The Effects of Cross Cultural Interface Design Orientation on World Wide Web User Performance 

      Badre, Albert (Georgia Institute of Technology, 2001)
      The electronic environment of the World Wide Web evolves daily, increasing the likelihood of international participants and transactions. With this in mind, we investigated several key issues and questions related to the ...
    • The Effects of Manipulating Recognition Variables on the Transition from Menus to Commands 

      Badre, Albert; Morris, John Morgan (Georgia Institute of Technology, 1991)
      The needs of users vary along with their degree of acquired expertise, with novices gladly accepting much-needed guidance and experts preferring to use the knowledge that they have gained with repeated use. The study of ...
    • The Effects of Multimedia and Elaborative Encoding on Learning 

      Najjar, Lawrence Joseph (Georgia Institute of Technology, 1996)
      The effects of presenting information using multimedia (e.g., text, audio, illustrations) on learning performance are inconsistent. Some studies show that multimedia improves learning, while other studies find no effect. ...
    • The Effects of Noise on the Perception of Animated Human Running 

      Bodenheimer, Robert E., Jr. (Bobby); Shleyfman, Anna V.; Hodgins, Jessica K. (Georgia Institute of Technology, 1999)
      Cyclic motions such as running or walking are difficult to animate because limitations in time and technology often result in only a small number of distinct cycles being produced. These few cycles are then repeated to ...
    • The Effects of Variation of System Responsiveness on User Performance in Virtual Environments 

      Watson, Benjamin A. (Benjamin Allen); Walker, Neff; Ribarsky, William; Spaulding, Victoria (Georgia Institute of Technology, 1996)
      This paper reports on study of the effects on user performance of system responsiveness in VE systems. Responsiveness is a time-to-feedback measure, and includes the well-known system latency and frame time, as well as an ...
    • Efficient Ray Intersection for Visualization and Navigation of Global Terrain using Spheroidal Height-Augmented Quadtrees 

      Wartell, Zachary Justin; Ribarsky, William; Hodges, Larry F. (Georgia Institute of Technology, 1999)
      We present an algorithm for efficiently computing ray intersections with multi-resolution global terrain partitioned by spheroidal height-augmented quadtrees. While previous methods support terrain defined on a Cartesian ...
    • Efficient Ray Intersection with Global Terrain using Spheroidal Height-Augmented Quadtrees 

      Wartell, Zachary Justin; Ribarsky, William; Hodges, Larry F. (Georgia Institute of Technology, 1998)
      We present an algorithm for efficiently computing ray intersections with multi-resolution global terrain which is partitioned by spheroidal height-augmented quadtrees. While previous methods support terrain defined on a ...
    • An Efficient Subdivision Inversion for Wavemesh-Compression of 3D Triangle Meshes 

      Valette, Sebastien; Rossignac, Jaroslaw R.; Prost, Remy (Georgia Institute of Technology, 2003)
      Wavemesh is a powerful scheme for 3D triangular mesh processing. In sharp contrast with other approaches using wavelets for mesh compression which apply only to meshes having subdivision connectivity, Wavemesh can simplify, ...
    • Electronic Communication by Deaf Teenagers 

      Henderson, Valerie; Grinter, Rebecca E.; Starner, Thad (Georgia Institute of Technology, 2005)
      We present a qualitative, exploratory study to examine the space of electronic based communication (e.g. instant messaging, short message service, email) by Deaf teenagers in the greater Atlanta metro area. We answer the ...
    • Emerging Trends in the WWW User Population 

      Pitkow, James Edward; Kehoe, Colleen Mary (Georgia Institute of Technology, 1996)
      Vast amounts of attention and resources have recently been devoted towards the World Wide Web (WWW) [Berners-Lee 94], but relatively little research has been conducted that examines Web usage and societal implications. ...