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A user-friendly method for constructing realistic dental model based on two-dimensional/three-dimensional registration

Yongzhen Ke, Wenjie Zhao, Shuai Yang, Kai Wang, Jiaying Liu

Engineering Computations

ISSN: 0264-4401

Article publication date: 10 August 2020

Issue publication date: 8 February 2021

160

Abstract

Purpose

This paper aims to obtain a texture dental model with real images and improve the rendering effect of the dental model.

Design/methodology/approach

The paper proposes a semiautomatic method to construct a realistic dental model with real images based on two-dimensional/three-dimensional (2D/3D) registration. First, a 3D digital dental model and three intraoral images are obtained by a 3D scanner and digital single-lens reflex camera. Second, the camera projection poses for every intraoral images are calculated by using the single-objective optimization algorithm. Third, with camera poses, the preliminary projection texture mapping is performed; besides, the seam between two textures is marked. Finally, the marked regions are fused based on the image pyramid to eliminate obvious seams.

Findings

The paper provides a method to construct a realistic dental model. The method can map three intraoral images to the dental model. The experimental results show that the textured dental model without obvious distortion, dislocation and seams is constructed with simple interactions.

Originality/value

The proposed method can be applied to the digital smile design system to improve the communication efficiency between doctors, patients and technicians.

Keywords

Acknowledgements

This research was partially supported by the Natural Science Foundation of Tianjin, China (Grant No. 17JCTPJC46800).

Citation

Ke, Y., Zhao, W., Yang, S., Wang, K. and Liu, J. (2021), "A user-friendly method for constructing realistic dental model based on two-dimensional/three-dimensional registration", Engineering Computations, Vol. 38 No. 2, pp. 1057-1075. https://doi.org/10.1108/EC-01-2020-0034

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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