Now showing items 216-235 of 535

    • Frequency Characteristics of Moving Images 

      Geunter, Brian (Georgia Institute of Technology, 1992)
      The class of multidimensional signals we will be dealing with is three dimensional: x, y, and time. We want to compute the Fourier transform of a moving image and the easiest way to approach the problem is to begin by ...
    • From Urban Terrain Models to Visible Cities 

      Ribarsky, William; Wasilewski, Anthony A.; Faust, Nick L. (Nickolas Lea) (Georgia Institute of Technology, 2002)
      We are now faced with the possibility and in some cases the results of acquiring accurate digital representations of our cities. But these cities will not be capable of interactive visualization unless we meet some fundamental ...
    • A Geometric Comparison of Algorithms for Fusion Control in Stereoscopic HTDs 

      Wartell, Zachary Justin; Hodges, Larry F.; Ribarsky, William (Georgia Institute of Technology, 2001)
      This paper concerns stereoscopic virtual reality displays in which the head is tracked and the display is stationary, attached to a desk, tabletop or wall. These are called stereoscopic HTDs (Head-Tracked Display). ...
    • Geometric Considerations for Stereoscopic Virtual Environments 

      Hodges, Larry F.; Davis, Elizabeth Thorpe (Georgia Institute of Technology, 1993)
      We examine the relationship between the different geometries implicit in a stereoscopic virtual environment. In particular, we examine in detail the relationship of retinal disparity, fixation point, binocular visual ...
    • Geometric Simplification for Indirect Illumination Calculation 

      Rushmeier, Holly E.; Patterson, Charles W., Jr.; Veerasamy, Aravindan (Georgia Institute of Technology, 1992)
      We present a new method for accelerating global illumination calculations in the generation of physically accurate images of geometrically complex environments. In the new method, the environment geometry is simplified by ...
    • Glyphmaker: An Interactive, Programmerless Approach for Customizing, Exploring, and Analyzing Visual Data Representations 

      Ribarsky, William; Tumblin, John Erwin (Jack); Newton, Gregory P.; Nowicki, Robert; Vetter, Jeffrey Scott (Georgia Institute of Technology, 1993)
      Glyphmaker is an interactive system for data visualization and analysis that is built in a dataflow environment. Glyphmaker provides a quite general platform for user-defined visualizations, one that can be extended in ...
    • Gorillas in the Bits 

      Allison, Donald Lee, Jr.; Wills, Brian Wesley; Hodges, Larry F.; Wineman, Jean Davison (Georgia Institute of Technology, 1996)
      The Virtual Reality Gorilla Exhibit is a system for teaching users about gorilla behaviors and social interactions. The system includes an accurate model of the Zoo Atlanta gorilla habitats and anthropometrically correct ...
    • Grammatical Methods in Computer Vision: An Overview 

      Chanda, Gaurav; Dellaert, Frank (Georgia Institute of Technology, 2004)
      We review various methods and applications that have used grammars for solving inference problems in computer vision and pattern recognition. Grammars have been useful because they are intuitively simple to understand, and ...
    • Graphical Modeling and Animation of Brittle Fracture 

      O'Brien, James F.; Hodgins, Jessica K. (Georgia Institute of Technology, 1999)
      In this paper, we augment existing techniques for simulating flexible objects to include models for crack initiation and propagation in three-dimensional volumes. By analyzing the stress tensors computed over a finite ...
    • Graphical Modeling and Animation of Fracture 

      O'Brien, James F. (Georgia Institute of Technology, 2000)
      This thesis addresses the problem of graphically modeling and animating the realistic behavior of materials that can undergo fracture due to deformation-induced stress. Using an approach based on linear elastic fracture ...
    • The Graphics, Visualization, and Usability Center Brochure 

      Badre, Albert; Berger, Marc; Corso, Gregory M.; Davis, Elizabeth Thorpe; Ezquerra, Norberto F.; Foley, James D.; Govindaraj, T.; Guenter, Brian K.; Hodges, Larry F.; Hodges, Laurie Beth; Hudson, Scott E.; Lawton, Daryl T.; Mitchell, C. M. (Christine M.); Morton, Joan C.; Mynatt, Elizabeth D.; Putnam, Bill; Ribarsky, William; Rodriguez, Walter E.; Shonkwiler, Ronald W.; Sinclair, Michael J.; Stasko, John T.; Sukaviriya, Piyawadee (Noi); Trauner, Mary; Walker, Neff (Georgia Institute of Technology, 1991)
      Graphics, Visualization, and Usability (GVU) is an interdisciplinary area which draws its intellectual foundations from Computer Science, Psychology, Industrial and Systems Engineering, and Computer Engineering, and which ...
    • Group Behaviors for Systems with Significant Dynamics 

      Hodgins, Jessica K.; Brogan, David C. (Georgia Institute of Technology, 1995)
      Birds, fish, and many other animals travel as a flock, school, or herd. Animals in these groups must remain in close proximity while avoiding collisions with neighbors and with obstacles. We would like to reproduce this ...
    • Grouping and Ordering User Interface Components 

      Gray, Mark H.; Foley, James D.; Mullet, Kevin E. (Georgia Institute of Technology, 1994)
      In automatically generating a user interface from a model of the target application, many factors that affect the resulting interface's quality must be considered. Any available semantic information that can improve the ...
    • Grow & Fold: Compression of Tetrahedral Meshes 

      Szymczak, Andrzej; Rossignac, Jaroslaw R. (Georgia Institute of Technology, 1999)
      Standard representations of irregular finite element meshes combine vertex data (sample coordinates and node values) and connectivity (tetrahedron-vertex incidence). Connectivity specifies how the samples should be ...
    • GT Beam - An Interactive Graphic Beam Analysis Program for Education 

      Gramoll, Kurt C. (Kurt Clyde) (Georgia Institute of Technology, 1993)
      An interactive beam analysis program called GT BEAM, that has been developed at Georgia Tech for use in undergraduate mechanics courses, is presented. The development objectives of the program are discussed and how the ...
    • Guaranteed 3.67V Bit Encoding of Planar Triangle Graphs 

      King, Davis; Rossignac, Jaroslaw R. (Georgia Institute of Technology, 1999)
      We present a new representation that is guaranteed to encode any planar triangle graph of V vertices in less than 3.67V bits. Our code improves on all prior solutions to this well studied problem and lies within 13% of the ...
    • Head Tracking using a Textured Polygonal Model 

      Schodl, Arno; Haro, Antonio; Essa, Irfan A. (Georgia Institute of Technology, 1998)
      We describe the use of a three-dimensional textured model of the human head under perspective projection to track a person's face. The system is hand-initialized by projecting an image of a face onto the polygonal head ...
    • High Quality Image Warp Filters on Pyramids 

      Tumblin, John Erwin (Jack); Guenter, Brian K. (Georgia Institute of Technology, 1993)
      Directional filters applied to prefiltered imput image pyramids strike a good balance between fast computation and sharp, alias-free images, and are widely used for texture mapping and image warping. However, most published ...
    • How do we interact with an agent: A perspective from an undergraduate human factors class 

      McCrickard, D. Scott; Cheng, May Wing-Sze (Georgia Institute of Technology, 1998)
      Undergraduate human factors classes explore guidelines for the design of user interfaces. However, these guidelines may not apply when dealing with agents, which run constantly without explicit direction from a user. An ...
    • Ictus: A User-Centered System of Score Study for Semi-Novice Conductors 

      Mitchell, Amy; Voida, Stephen; Paradise, Jessica; Martin, Chris C.; Mynatt, Elizabeth D. (Georgia Institute of Technology, 2000)
      Ictus supports the study and preparation of musical scores by semi-novice conductors. It does so by representing the complex analytical processes in which professional conductors routinely engage. Through iterative design ...