Now showing items 41-54 of 54

    • Real vs. approximate collisions: when can we tell the difference 

      DINGLIANA, JOHN; O'SULLIVAN, CAROL ANN (ACM Press, 2001)
    • Real-time implicit bulging and area preservation 

      LINDEN, NIALL; REYNOLDS, HUGH; O'SULLIVAN, CAROL ANN (2000)
      Implicit Surfaces are particularly suitable for the animation of deformable objects, although some problems still remain, especially in real time applications. One problem is that of volume loss when objects are squashed. ...
    • A scalable and reconfigurable shared-memory graphics architecture 

      BRENNAN, ROSS; DINGLIANA, JOHN; MANZKE, MICHAEL; O'SULLIVAN, CAROL ANN (ACM, 2006)
    • Simulating virtual humans across diverse situations 

      MACNAMEE, BRIAN; DOBBYN, SIMON; CUNNINGHAM, PADRAIG; O'SULLIVAN, CAROL ANN (Springer, 2003)
      Perhaps due to its existentiality, the fact that simulated virtual humans give no impression of having an existence beyond their interactions with human users is often ignored in intelligent agent systems for virtual human ...
    • Skinning arbitrary deformations 

      DOBBYN, SIMON; MCDONNELL, RACHEL; O'SULLIVAN, CAROL ANN (ACM Press, 2007)
      Matrix palette skinning (also known as skeletal subspace deformation) is a very popular real-time animation technique. So far, it has only been applied to the class of quasi-articulated objects, such as moving human or ...
    • Skinning with dual quaternions 

      O'SULLIVAN, CAROL ANN (2007)
      Skinning of skeletally deformable models is extensively used for real-time animation of characters, creatures and similar objects. The standard solution, linear blend skinning, has some serious drawbacks that require ...
    • Smart objects for attentive agents 

      PETERS, CHRISTOPHER; MCNAMEE, BRIAN; DOBBYN, SIMON; O'SULLIVAN, CAROL ANN (2003)
      We present an extended framework for modelling agent-object interactions in virtual environments. Our framework is based on the concept of Smart Objects and provides agents with pre-programmed interaction information for ...
    • Synthetic vision and memory for autonomous virtual humans 

      PETERS, CHRISTOPHER; O'SULLIVAN, CAROL ANN (Blackwell, 2002)
      A memory model based on ?stage theory?, an influential concept of memory from the field of cognitive psychology, is presented for application to autonomous virtual humans. The virtual human senses external stimuli through a ...
    • Towards time-critical collision detection for deformable objects based on reduced models 

      MENDOZA, CESAR; O'SULLIVAN, CAROL ANN (2005)
      Topics of physically based modeling of deformable objects and collision detection have been extensively researched. Nowadays, the combination of GPU techniques and multiresolution physical models allows interactive ...
    • Virtual Dublin: A famework for real-tme uban simulation 

      HAMILL, JOHN; O'SULLIVAN, CAROL ANN (2003)
    • A virtual reality electrocardiography teaching tool 

      O'SULLIVAN, CAROL ANN (2004)
      We present a novel approach to producing a tool for use in the teaching of electrocardiography. A volumetric model is attained by outputting slice information to image files, which are then used to texture polygons in ...
    • A virtual reality toolkit for the diagnosis and monitoring of myocardial infarctions 

      BELL, CHRISTOPHER; O'SULLIVAN, CAROL ANN (2005)
      We have developed a software system that takes standard electrocardiogram (ECG) input and interprets this input along with user-defined and automatically defined markers to diagnose myocardial infarctions (MI). These ...
    • Virtual shapers & movers: form and motion affect sex perception 

      MCDONNELL, RACHEL; NEWELL, FIONA; O'SULLIVAN, CAROL ANN (2007)
      An experiment to determine factors that influence the perceived sex of virtual characters was conducted. Four different model types were used: highly realistic male and female models, an androgynous character, and a ...
    • Vision-based reaching for autonomous virtual humans 

      PETERS, CHRISTOPHER; O'SULLIVAN, CAROL ANN (2002)
      A method for the generation of realistic real-time goal-directed virtual human arm motion is presented. Agents are endowed with a rudimentary synthetic vision and memory system that is used to gather and store data about ...