System and method for virtual reality training for odontology
First Claim
1. Virtual reality training system (S) for the acquisition of operating procedures in dentistry, comprising:
- a real accessory (2, 20) which can be hand-held, means for providing position and orientation information on said real accessory, computer-based means (6) for providing a three-dimensional representation of a virtual object (T) on a screen (7), in particular a virtual tooth or set of virtual teeth, and a spatial display of a virtual handtool corresponding to the effective spatial position of said real accessory (2), a haptic man-machine interface (IHM) device (1) including the real accessory (2) which can be hand-held and comprising actuators controlled by said computer-based means (6) in order to provide a user holding said real accessory (2) in his hand with a force feedback when the virtual handtool (OV) interacts with the virtual object (T), characterized in that the modelling means comprise means for modelling a heterogeneous structure of the virtual object (T) and for supplying the control means with force feedback information depending on said heterogeneous structure and functional characteristics of the virtual handtool (OV).
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Accused Products
Abstract
A system for virtual reality training, to acquire procedure movements in odontology, by sensing data concerning spatial position of a real hand-held element (2), three-dimensional representation of a virtual object (T) on a display screen (7), processing spatial position data for providing spatial display of a virtual instrument (OV) corresponding to the actual spatial position of the real element (2), supplying a virtual instrument (01-04) for operating on the virtual object (T) and modelling an interaction between the virtual instrument and said virtual object (T). The hand-held element (2) belongs to a haptic man-machine interface (IHM) comprising actuators controlled to supply the user holding in his hand the real element (2) with a force-feedback when the virtual instrument (OV) interacts with the virtual object (T). The invention is useful for pedagogical and professional purposes.
96 Citations
30 Claims
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1. Virtual reality training system (S) for the acquisition of operating procedures in dentistry, comprising:
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a real accessory (2, 20) which can be hand-held, means for providing position and orientation information on said real accessory, computer-based means (6) for providing a three-dimensional representation of a virtual object (T) on a screen (7), in particular a virtual tooth or set of virtual teeth, and a spatial display of a virtual handtool corresponding to the effective spatial position of said real accessory (2), a haptic man-machine interface (IHM) device (1) including the real accessory (2) which can be hand-held and comprising actuators controlled by said computer-based means (6) in order to provide a user holding said real accessory (2) in his hand with a force feedback when the virtual handtool (OV) interacts with the virtual object (T), characterized in that the modelling means comprise means for modelling a heterogeneous structure of the virtual object (T) and for supplying the control means with force feedback information depending on said heterogeneous structure and functional characteristics of the virtual handtool (OV). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification