Spring-Damper Hands |
Spring-Damper hands are an extension of the haptic "Ghost Object" concept applied to both hands and arms.
It consists in virtual hands driven by the Haptic Workstation that can collide a virtual object without penetrating into it.
This concept simplifies the computation of force feedback, and offers a better user experience in term of presence.
Several applications have already been build to perform realistic interaction and manipulation tasks using this paradigm.
Vincent de Perrot, Renaud Ott
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Head Mounted Wind |
Within the context of tele-presence and immersion for piloting
light aircraft, knowledge about the surrounding wind offers
useful information for piloting purposes.
We developped a new haptic device generating wind around
the user head. The system is based on an embedded system
driving 8 fan actuators regularly distributed around a Head
Mounted Display (HMD). In order to validate the added value
of the device in the context of tele-operation, an application
has been developed around a flight simulator where wind
direction and forces are passed to the user via our system.
Sylvain Cardin
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Visualization Learning for Visually Impaired People |
Virtual Environments (VE) are mainly visual experiments that
exclude visually impaired people.
We developped an application that should allow almost
everybody to “see” or at least to perceive 3D shapes
through sound.
We made tests with geometrically basic shapes and the
result is very promising.
Patrick Salamin
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Individualized Reaction Movements for Virtual Humans |
Autonomous behavior consists in interacting with users or the environment and reacting to stimulus or events. Reactions are unconscious behaviors which are not often implemented in virtual humans. Frequently, virtual humans show repetitive and robotic movements which tend to decrease realism.
To improve believability in virtual humans we need to provide individuality by using human characteristics like personality, gender, emotions, etc. We aim that individualized virtual humans react in a different way to the same stimuli using individual descriptors to synthesize different kinds of reactions.
Alejandra Garcia-Rojas Martinez
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Advanced Virtual Reality Technologies for Surveillance and Security Applictions |
We developed a surveillance and security system based on Advanced Virtual Reality Devices to enhance their performances. this system is designed around three main components taking advantage of VR technologies: the data acquisition achieved by the mean of flying and fixed video cameras using haptic tele-operated robots; the information analysis is done inside a Control Room enhanced by a CAVE device and an Eye-Tracking system; and finally, the On-field agents are helped by PDAs to easily and quickly access to information via multi-modal sensory channels.
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Comfortable Manipulation of a Virtual Gearshift Prototype with Haptic Feedback |
To improve the quality of the virtual prototyping of Truck cockpit, we have developed with the help of Renault Truck a complete touchable gearbox prototype. We have made ElectroMyograph (EMG) experiment to verify the user confort and his belief in the simulation.
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gesture recognition in a vr context |
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This semester project shows a gesture-based interface for VR applications. The system uses ARtoolkit for gesture acquisition and neural networks for recognition.
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building adaptive Multimodal interfaces |
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A visual programming meta-interface for configuring multimodal Interfaces. The system is based on the semantics of virtual entities and interaction devices organized in the form of an ontology for Virtual Environments.
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mediators: haptic feedback |
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An interface paradigm based on the concept of mediators: simple virtual entities that serve as interface to more complex environments. We present a prototype consisting of a Haptic Workstation. The system is used to manipulate virtual objects (mediators) that play the role of a virtual interface for driving a virtual car.
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mobile animator |
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A mobile -PDA-based- interface for real-time control of virtual characters in multiuser semi-immersive Virtual Environments.
This prototype shows the potential of handheld devices as interfaces to Virtual Reality applications.
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Tele-operated robots |
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We replace physical operator interfaces by fully parameterizable virtual interfaces. Mediators open new possibilities for multimodal feedback for control interfaces. The implemented prototype shows the feasibility of using virtual haptic interfaces to drive robots remotely.
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telerehabilitation |
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A telerehabilitation system for kinesthetic therapy (treatment of arm coordination disorders). Patients can receive therapy while being immersed in a virtual environment (VE) with haptic feedback.
Our system is based on a Haptic Workstation that provides force-feedback on the upper limbs. One of our main contributions is the use of a handheld device as the main interface for the therapist.
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