Haptics

Extending the frontier of visual computing, real-time physically-based interaction via graphical display and haptic (touch-enabled) rendering have the potential to increase the quality of human-computer interaction by accommodating the sense of touch. They also provide an attractive augmentation to visual display and enhance the level of immersion in a virtual world, and have been effectively used for several engineering, scientific, and medical applications.

The GAMMA research group focuses on six or higher degree-of-freedom haptic rendering using multi-resolution techniques, localized contact computation, and graphics hardware acceleration. We have also developed interactive applications that use a haptic interface for creative processes and real-time interaction with virtual reality training systems. These include haptic two-dimensional painting with three-dimensional virtual brushes, three-dimensional model design with haptic interface, digital sculpting, and mobile interaction with virtual environments.

Publications

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Integrated Multimodal Interaction Using Normal Maps  2015.
Graphics Interface

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Integrated Multimodal Interaction Using Texture Representations  2015.
Computers & Graphics doi:10.1016/j.cag.2015.10.010

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Haptic Rendering of High-resolution Deformable Objects  2007.
International Conference on Human-Computer Interaction

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Accelerated Proximity Queries for Haptic Rendering of Deformable Models  2007.
World Haptics Conference

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Sensation-preserving Haptic Rendering  2005.
IEEE Computer Graphics and Applications (CG&A)

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Stable and Responsive Six-degree-of-freedom Haptic Manipulation Using Implicit Integration  2005.
World Haptics Conference

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A Viscous Paint Model for Interactive Applications  2004.
International Conference on Computer Animation and Social Agents (CASA)

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6-DoF Haptic Rendering Using Contact Levels of Detail and Haptic Textures  2004.
Ph.D. Dissertation, University of North Carolina at Chapel Hill

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IMPaSTo: A Realistic, Interactive Model for Paint  2004.
International Symposium on Non-Photorealistic Animation and Rendering

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A Perceptually-inspired Force Model for Haptic Texture Rendering  2004.
Symposium on Applied Perception in Graphics and Visualization

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A Versatile Interactive 3D Brush Model  2004.
Pacific Graphics

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Haptic Display of Interaction between Textured Models  2004.
IEEE Visualization (VIS)

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Haptic Interaction with Fluid Media  2004.
Graphics Interface

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Physically Based Virtual Painting  2004.
Communications of the ACM (CACM)

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Physically-based Modeling Techniques for Interactive Digital Painting  2004.
Ph.D. Dissertation, University of North Carolina at Chapel Hill

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Sensation Preserving Simplification for Haptic Rendering  2003.
ACM Transactions on Graphics (Proc ACM SIGGRAPH)

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CLODs: Dual Hierarchies for Multiresolution Collision Detection  2003.
Eurographics Symposium on Geometry Processing (SGP)

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Six Degree-of-Freedom Haptic Display Using Incremental and Localized Computations  2003.
Presence: Teleoperators and Virtual Environments

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ArtNova: Touch-enabled 3D Model Design  2002.
IEEE Virtual Reality (VR)

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Haptic Interaction for Creative Processes with Simulated Media  2002.
IEEE International Conference on Robotics and Automation (ICRA)

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Six Degree-of-Freedom Haptic Visualization  2002.
Touch in Virtual Environment, pp. 95-118, edited by McLaughlin, Hespanha and Sukhatme

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Six Degree-of-Freedom Haptic Display Using Localized Contact Computations  2002.
Symposium on Haptic Interfaces For Virtual Environment and Teleoperator Systems

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ArtNova: Touch-Enabled 3D Model Design  2001.

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A Touch-enabled System for Multiresolution Modeling and 3D Painting  2001.
Journal of Visualization and Computer Animation (JVCA)

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DAB: Interactive Haptic Painting with 3D Virtual Brushes  2001.
ACM SIGGRAPH

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User-Centric Viewpoint Computation for Haptic Exploration and Manipulation  2001.
IEEE Visualization (VIS)

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inTouch: Interactive Multiresolution Modeling and 3D Painting  2000.
IEEE Virtual Reality (VR)

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Six Degree-of-Freedom Haptic Display of Polygonal Models  2000.
IEEE Visualization (VIS)

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Contact Determination for Real-time Haptic Interaction in 3D Modeling, Editing and Painting  1999.
Proceedings of the PHANTOM Users Group Workshop

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