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Open AccessArticle

An Interactive Real-Time Cutting Technique for 3D Models in Mixed Reality

Department of Industrial Engineering, University of Bologna, 40136 Bologna, Italy
Author to whom correspondence should be addressed.
Technologies 2020, 8(2), 23;
Received: 3 December 2019 / Revised: 10 April 2020 / Accepted: 7 May 2020 / Published: 12 May 2020
(This article belongs to the Special Issue Computer Vision and Image Processing Technologies)
This work describes a Mixed Reality application useful to modify and cut virtual objects. A digital simulation of surgical operations is presented. Following this approach, surgeons can test all the designed solutions of the preoperative stage in a Mixed Reality environment. High precision in surgery applications can be achieved thanks to the new methodology. The presented solution is hands free and does not need the use of a mouse or computer’s keyboard: it is based on HoloLens, Leap Motion device and Unity. A new cutting algorithm has been developed in order to handle multiple objects and speed up the cut with complex meshes and preserve geometry quality. A case study presents the cut of several bones in order to simulate surgeon’s operations. A reduction in cut time compared to the original method is noticed, together with a high flexibility of the tool and a good fidelity of the geometry. Moreover, all the object fragments generated from the algorithm are available for manipulation and new cuts. View Full-Text
Keywords: Mixed Reality; leap motion; unity; cutting algorithm Mixed Reality; leap motion; unity; cutting algorithm
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Caligiana, P.; Liverani, A.; Ceruti, A.; Santi, G.M.; Donnici, G.; Osti, F. An Interactive Real-Time Cutting Technique for 3D Models in Mixed Reality. Technologies 2020, 8, 23.

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