Authors: Furqan Ullah Kang Park
Publish Date: 2013/04/05
Volume: 14, Issue: 4, Pages: 577-587
Abstract
This paper presents a surfacebased virtual dental sculpting simulator based on sensory modalities like visual auditory and haptic sensation The simulator can be used to perform different dental procedures such as grinding drilling or surface scrubbing and gain experience of using various virtual dental tools of different shapes The surfacebased dental model which is extracted from a commercial 3D dental laser scanner is used for simulating sculpting processes at less memory cost Large amount of triangular mesh data is contained in scanned models therefore a model reduction algorithm is proposed for large triangular mesh data For the computation of repulsive force feedback a springdamper force model with a force filter is used Vertex deformation method is implemented along with an enhanced bitri subdivision method of triangles to perform precision sculpting simulation In order to make the mesh regular a number of mesh refinement algorithms are performed Finally considering the fidelity stability computer efficiency and update rate of the haptic display it can be concluded that these multimodal realities based virtual system can generate stable simulation of material removal from a human tooth model with realistic auditory visual and force sensations
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