Over the years, a lot of graph drawing algorithms have been invented and implemented in many diff... more Over the years, a lot of graph drawing algorithms have been invented and implemented in many different areas. These areas vary from cartography analysis to bioinformatics and including VLSI circuit design, real time systems, web site mapping and social networks. Bioinformatics ...
The vision of virtual prototyping is to use virtual reality techniques for design evaluations and... more The vision of virtual prototyping is to use virtual reality techniques for design evaluations and presentations based on a digital model instead of physical prototypes. In the automotive industries, CAD and CAE systems are widely used. This provides a good basis for virtual ...
This collection demonstrates that parallel and interactive graphics and visualization continue to... more This collection demonstrates that parallel and interactive graphics and visualization continue to be very active research areas. Issues such as visualizing large data sets and high quality rendering of dynamic models pose many new challenges yet to be solved that continue to push the frontiers and will provide us with interesting research questions for many years to come.
The goal of this project is to develop a training system that can simulate the welding process in... more The goal of this project is to develop a training system that can simulate the welding process in real-time and give feedback that avoids learning wrong motion patterns for beginning welders and can be used to analyze the process by the teacher afterwards. The system is based ...
Page 1. SPONSORED BY IEEE COMPUTER SOCIETY VISUALIZATION AND GRAPHICS TECHNICAL COMMITTEE IEEE Vi... more Page 1. SPONSORED BY IEEE COMPUTER SOCIETY VISUALIZATION AND GRAPHICS TECHNICAL COMMITTEE IEEE Virtual Reality 2009 Lafayette, Louisiana, USA March 14 - 18, 2009 Proceedings Edited by Anthony Steed Dirk Reiners Robert W. Lindeman
Eurographics Workshop on Parallel Graphics and Visualization, 2002
One of the main shortcomings of current scene graphs is their inability to support multi-thread s... more One of the main shortcomings of current scene graphs is their inability to support multi-thread safe data structures. This work describes the general framework used by the OpenSG scene graph system to enable multiple concurrent threads to independently manipulate the scene graph without interfering with each other. Furthermore the extensions of the presented mechanisms needed to support cluster systems are
Eurographics Workshop on Parallel Graphics and Visualization, 2002
One of the main shortcomings of current scene graphs is their inability to support multi-thread s... more One of the main shortcomings of current scene graphs is their inability to support multi-thread safe data structures. This work describes the general framework used by the OpenSG scene graph system to enable multiple concurrent threads to independently manipulate the scene graph without interfering with each other. Furthermore the extensions of the presented mechanisms needed to support cluster systems are
Several critical limitations exist in the currently available commercial tracking technologies fo... more Several critical limitations exist in the currently available commercial tracking technologies for fully-enclosed virtual reality (VR) systems. While several 6DOF solutions can be adapted to work in fully-enclosed spaces, they still include elements of hardware that can interfere with the user's visual experience. JanusVF introduced a tracking solution for fully-enclosed VR displays that achieves comparable performance to available commercial solutions but without artifacts that can obscure the user's view. JanusVF employs a small, high-resolution camera that is worn on the user's head, but faces backwards. The VR rendering software draws specific fiducial markers with known size and absolute position inside the VR scene behind the user but in view of the camera. These fiducials are tracked by ARToolkitPlus and integrated by a single-constraint-at-a-time (SCAAT) filter to update the head pose. In this paper we investigate the addition of low-cost accelerometers and gyroscopes such as those in Nintendo Wii remotes, the Wii Motion Plus, and the Sony Sixaxis controller to improve the precision and accuracy of JanusVF. Several enthusiast projects have implemented these units as basic trackers or for gesture recognition, but none so far have created true 6DOF trackers using only the accelerometers and gyroscopes. Our original experiments were repeated after adding the low-cost inertial sensors, showing considerable improvements and noise reduction.
Over the years, a lot of graph drawing algorithms have been invented and implemented in many diff... more Over the years, a lot of graph drawing algorithms have been invented and implemented in many different areas. These areas vary from cartography analysis to bioinformatics and including VLSI circuit design, real time systems, web site mapping and social networks. Bioinformatics ...
The vision of virtual prototyping is to use virtual reality techniques for design evaluations and... more The vision of virtual prototyping is to use virtual reality techniques for design evaluations and presentations based on a digital model instead of physical prototypes. In the automotive industries, CAD and CAE systems are widely used. This provides a good basis for virtual ...
This collection demonstrates that parallel and interactive graphics and visualization continue to... more This collection demonstrates that parallel and interactive graphics and visualization continue to be very active research areas. Issues such as visualizing large data sets and high quality rendering of dynamic models pose many new challenges yet to be solved that continue to push the frontiers and will provide us with interesting research questions for many years to come.
The goal of this project is to develop a training system that can simulate the welding process in... more The goal of this project is to develop a training system that can simulate the welding process in real-time and give feedback that avoids learning wrong motion patterns for beginning welders and can be used to analyze the process by the teacher afterwards. The system is based ...
Page 1. SPONSORED BY IEEE COMPUTER SOCIETY VISUALIZATION AND GRAPHICS TECHNICAL COMMITTEE IEEE Vi... more Page 1. SPONSORED BY IEEE COMPUTER SOCIETY VISUALIZATION AND GRAPHICS TECHNICAL COMMITTEE IEEE Virtual Reality 2009 Lafayette, Louisiana, USA March 14 - 18, 2009 Proceedings Edited by Anthony Steed Dirk Reiners Robert W. Lindeman
Eurographics Workshop on Parallel Graphics and Visualization, 2002
One of the main shortcomings of current scene graphs is their inability to support multi-thread s... more One of the main shortcomings of current scene graphs is their inability to support multi-thread safe data structures. This work describes the general framework used by the OpenSG scene graph system to enable multiple concurrent threads to independently manipulate the scene graph without interfering with each other. Furthermore the extensions of the presented mechanisms needed to support cluster systems are
Eurographics Workshop on Parallel Graphics and Visualization, 2002
One of the main shortcomings of current scene graphs is their inability to support multi-thread s... more One of the main shortcomings of current scene graphs is their inability to support multi-thread safe data structures. This work describes the general framework used by the OpenSG scene graph system to enable multiple concurrent threads to independently manipulate the scene graph without interfering with each other. Furthermore the extensions of the presented mechanisms needed to support cluster systems are
Several critical limitations exist in the currently available commercial tracking technologies fo... more Several critical limitations exist in the currently available commercial tracking technologies for fully-enclosed virtual reality (VR) systems. While several 6DOF solutions can be adapted to work in fully-enclosed spaces, they still include elements of hardware that can interfere with the user's visual experience. JanusVF introduced a tracking solution for fully-enclosed VR displays that achieves comparable performance to available commercial solutions but without artifacts that can obscure the user's view. JanusVF employs a small, high-resolution camera that is worn on the user's head, but faces backwards. The VR rendering software draws specific fiducial markers with known size and absolute position inside the VR scene behind the user but in view of the camera. These fiducials are tracked by ARToolkitPlus and integrated by a single-constraint-at-a-time (SCAAT) filter to update the head pose. In this paper we investigate the addition of low-cost accelerometers and gyroscopes such as those in Nintendo Wii remotes, the Wii Motion Plus, and the Sony Sixaxis controller to improve the precision and accuracy of JanusVF. Several enthusiast projects have implemented these units as basic trackers or for gesture recognition, but none so far have created true 6DOF trackers using only the accelerometers and gyroscopes. Our original experiments were repeated after adding the low-cost inertial sensors, showing considerable improvements and noise reduction.
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