Beihang University

Beijing Unidraw Vr Technology Researech Institute Co., Ltd

Xiaohan Zhao

Jian Ken Song

Dangxiao Wang

Yuru Zhang

Aimin Hao

Yongtao Zhao

Yu Cong

Hongdong Zhang

A vision-haptics fused augmented reality simulator for dental surgical skill training, including a dental simulation training platform constructed based on an artificial head phantom; a dental operation training system based on a haptic feedback device; an observation system based on an augmented reality head-mounted display; generating a virtual dental model by modeling based on CBCT data and scan data of a patient's dental cavity, to construct a virtual dental environment; based on the virtual dental model and feature points obtained through scanning on the artificial head phantom, performing a spatial matching of a virtual dental cavity and a dental model; in a virtual dental surgery simulation method, outputting haptics information and visual information at frequencies of not less than 1000 Hz and 60 Hz, respectively; performing a visual information processing method on grid data; and performing a haptics-vision space calibration method based on information of an operator's head.

Vision-haptics fused augmented reality simulator for dental surgical skill training

A force feedback handle device with a degree-of-freedom includes: a driving part (), a link part () and a frame part (); wherein the driving part () and the link part () are both installed on a top board (), and a rotation axis of the link part () coincides with a rotation axis of the driving part (); the driving part (), the link part () and the frame part () are fixed and connected by bolts. A working method of the force feedback handle device includes four steps. The force feedback device of the invention has low inertia and high stiffness performance, which improves overall interaction performance of the force feedback device. The structure is simple and a manufacturing cost is low.

Force feedback handle device with a degree-of-freedom and working method thereof

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Beijing, China

Xiaohan Zhao