Abstract
In the process of orthodontics, accurate bracket positioning is a necessary condition to quickly obtain the ideal treatment result. We propose a virtual bracket-interaction method based on the Layered Depth-Normal Images (LDNI) and the point set matching. By means of mouse-interaction, the fast movement of the bracket on the tooth surface is realized. Specifically, LDNI is used to complete the sampling of the bottom point of the bracket in space coordinate system. Then the nearest-distance algorithm is used to find the corresponding point on the tooth surface. Finally, the position of the bracket on the tooth surface is determined by point set matching. In addition, in order to help the orthodontist to complete clinical correction, we design a virtual bracket interaction software to realize the positioning operation of the virtual bracket through mouse interaction. The results demonstrates that the software we developed is very helpful for orthodontists to complete bracket positioning.
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Acknowledgements
The authors would like to thank the support of the Guangzhou Innovation and Entrepreneurship Leading Team Project under grant CXLJTD-201609.
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Qu, W., Fan, R., Pan, Z. (2020). Interactive Virtual Bracket Positioning Method in Orthodontics. In: Pan, Z., Cheok, A., Müller, W., Zhang, M. (eds) Transactions on Edutainment XVI. Lecture Notes in Computer Science(), vol 11782. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-61510-2_3
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DOI: https://doi.org/10.1007/978-3-662-61510-2_3
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