Now showing items 1-20 of 547

    • 3D Mesh Compression 

      Rossignac, Jaroslaw R. (Georgia Institute of Technology, 2003)
      In this chapter, we discuss 3D compression techniques for reducing the delays in transmitting triangle meshes over the Internet. We first explain how vertex coordinates, which represent surface samples may be compressed ...
    • The 3D Revolution: CAD Access for All 

      Rossignac, Jaroslaw R. (Georgia Institute of Technology, 1996)
      The manufacturing industry has invested vast amounts of resources in the deployment and use of solid modeling technology. Although expensive to generate and potentially very valuable in many product related activities, 3D ...
    • 3D Visualization of Pose Determination: Application to SPECT Imaging 

      Mullick, Rakesh; Ezquerra, Norberto F.; Garcia, Ernest Victor; Cooke, C. David; Folks, R. D. (Georgia Institute of Technology, 1993)
      Pose determination of 3D objects is a topic of active research, particularly in the area of medical imaging. The determination of the pose or orientation of a 3D object in a 3D dataset can be viewed as a two-fold problem: ...
    • 3D Visualization of Pose Determination: Application to SPECT Imaging 

      Mullick, Rakesh; Ezquerra, Norberto F.; Garcia, Ernest Victor; Cooke, C. David; Folks, R. D. (Georgia Institute of Technology, 1992)
      Pose determination of 3D objects is a topic of active research, particularly in the area of medical imaging. The determination of the pose or orientation of a 3D object in a 3D dataset can be viewed as a two-fold problem: ...
    • 4D Symbology for Sensing and Simulation 

      Turner, Gregory; Haus, Jacques; Newton, Gregory P.; Ribarsky, William; Faust, Nick L. (Nickolas Lea); Hodges, Larry F. (Georgia Institute of Technology, 1996)
      The Army's Common Picture of the Battlefield will produce immense amounts of data associated with tactical goals and options, dynamic operations, unit and troop movement, and general battlefield information. These data ...
    • Acting Deceptively: Providing Robots with the Capacity for Deception 

      Wagner, Alan R.; Arkin, Ronald C. (Georgia Institute of Technology, 2010)
      Deception is utilized by a variety of intelligent systems ranging from insects to human beings. It has been argued that the use of deception is an indicator of theory of mind (Cheney & Seyfarth, 2008) and of social ...
    • Adaptive Action Prompting: A Complementary Aid to Support Task-Oriented Interaction in Explorative User Interfaces 

      Kuehme, Thomas (Georgia Institute of Technology, 1993)
      Adaptive action prompting supports users by suggesting how to continue with the interaction. A small number of continuously updated action prompts are offered in addition to the regular menu interface of an application. ...
    • Adaptive Prompting 

      Kuehme, Thomas; Malinowski, Uwe; Foley, James D. (Georgia Institute of Technology, 1993)
      Adaptive prompting addresses problems with locating, referencing, and selecting interface items such as elements of directory hierarchies or menu and dialog box entries. By drawing the user's attention to the most appropriate ...
    • Advanced Auditory Menus 

      Yalla, Pavani; Walker, Bruce N. (Georgia Institute of Technology, 2007)
    • Advections with Significantly Reduced Dissipation and Diffusion 

      Kim, Byungmoon; Liu, Yingjie; Llamas, Ignacio; Rossignac, Jaroslaw R. (Georgia Institute of Technology, 2006)
      Back and Forth Error Compensation and Correction (BFECC) can be applied to reduce dissipation and diffusion in advection steps, such as velocity, smoke density, and image advections. It can be implemented trivially as a ...
    • Aggregation Bias and the Use of Regression in Evaluating Models of Human Performance 

      Walker, Neff; Catrambone, Richard (Georgia Institute of Technology, 1992)
      Regression analysis is increasingly being used to provide confirmatory evidence for models of human performance. The amount of information made available to judge these models is reduced because clearly established standards ...
    • Algorithms for Rendering Cubic Curves 

      Watson, Benjamin A. (Benjamin Allen); Hodges, Larry F. (Georgia Institute of Technology, 1992)
      We present two integer-only algorithms to be used in tandem for rendering cubic functions and parametric cubic curves with ratyional coefficients. We then show how to take advantage of curve shape to improve algorithm ...
    • An Analytic Comparison of Alpha-False Eye Separation, Image Scaling and Image Shifting in Stereoscopic Displays 

      Wartell, Zachary Justin; Hodges, Larry F.; Ribarsky, William (Georgia Institute of Technology, 2000)
      Stereoscopic display is a fundamental part of many virtual reality systems. Stereoscopic displays render two perspective views of a scene, each of which is seen by one eye of the user. Ideally the user's natural visual ...
    • The Analytic Distortion Induced by False-Eye Separation in Head-Tracked Stereoscopic Displays 

      Wartell, Zachary Justin; Hodges, Larry F.; Ribarsky, William (Georgia Institute of Technology, 1999)
      Stereoscopic display is a fundamental part of virtual reality systems such as the virtual workbench, the CAVE and HMD systems. A common practice in stereoscopic systems is deliberate incorrect modeling of user eye separation. ...
    • Analyzing and Visualizing Log Files: A Computational Science of Usability 

      Guzdial, Mark; Santos, Paulo J.; Badre, Albert; Hudson, Scott E.; Gray, Mark H. (Georgia Institute of Technology, 1994)
      Researchers in human-computer interactions know that software can easily be instrumented to create a trace of user events in the interface (which we call a log file) for later analysis. Using these data for studying usability ...
    • Analyzing Differences between Internet Information System Software Architectures 

      Abowd, Gregory D.; Pitkow, James Edward; Kazman, Rick (Georgia Institute of Technology, 1995)
      While the growth and variety of Internet information systems has been dramatic over the past five years, the methodical consideration of the differences between systems has not been emphasized. We present a particular ...
    • Animating Athletic Motion Planning By Example 

      Metoyer, Ronald A.; Hodgins, Jessica K. (Georgia Institute of Technology, 2000)
      Character animation is usually reserved for highly skilled animators and computer programmers because few of the available tools allow the novice or casual user to create compelling animated content. In this paper, we ...
    • Animating Human Athletics 

      Hodgins, Jessica K.; Wooten, Wayne L.; Brogan, David C.; O'Brien, James F. (Georgia Institute of Technology, 1995)
      This paper describes algorithms for the animation of men and women performing three dynamic athletic behaviors: running, bicycling, and vaulting. We animate these behaviors using control algorithms that cause a physically ...
    • Animating Sand, Mud, and Snow 

      Sumner, Robert W.; O'Brien, James F.; Hodgins, Jessica K. (Georgia Institute of Technology, 1998)
      Computer animations often lack the subtle environmental changes that should occur due to the actions of the characters. Squealing car tires usually leave no skid marks, airplanes rarely leave jet trails in the sky, and ...
    • Animating User Interfaces Using Animation Servers 

      Bharat, Krishna A.; Sukaviriya, Piyawadee (Noi) (Georgia Institute of Technology, 1993)
      Our approach to user interface animation involves simulating the interaction of a user with the interface by synthetically generating the input events that drive the session. The interaction is made explicit by displaying ...