一种使用一系列光学图像的人类颌骨三维重建系统。

A 3-D reconstruction system for the human jaw using a sequence of optical images.

作者信息

Yamany S M, Farag A A, Tasman D, Farman A G

机构信息

Electrical and Computer Engineering Department, University of Louisvile, KY 40292, USA.

出版信息

IEEE Trans Med Imaging. 2000 May;19(5):538-47. doi: 10.1109/42.870264.

DOI:10.1109/42.870264

PMID:11021697

Abstract

This paper presents a model-based vision system for dentistry that will assist in diagnosis, treatment planning, and surgical simulation. Dentistry requires an accurate three-dimensional (3-D) representation of the teeth and jaws for diagnostic and treatment purposes. The proposed integrated computer vision system constructs a 3-D model of the patient's dental occlusion using an intraoral video camera. A modified shape from shading (SFS) technique, using perspective projection and camera calibration, extracts the 3-D information from a sequence of two-dimensional (2-D) images of the jaw. Data fusion of range data and 3-D registration techniques develop the complete jaw model. Triangulation is then performed, and a solid 3-D model is reconstructed. The system performance is investigated using ground truth data, and the results show acceptable reconstruction accuracy.

摘要

本文提出了一种基于模型的牙科视觉系统，该系统将有助于诊断、治疗计划制定和手术模拟。牙科诊断和治疗需要牙齿和颌骨的精确三维（3-D）表示。所提出的集成计算机视觉系统使用口腔内摄像机构建患者牙合的3-D模型。一种改进的从阴影恢复形状（SFS）技术，利用透视投影和摄像机校准，从颌骨的一系列二维（2-D）图像中提取3-D信息。距离数据的数据融合和3-D配准技术构建完整的颌骨模型。然后进行三角测量，并重建一个实体3-D模型。使用地面真值数据对系统性能进行了研究，结果显示重建精度可以接受。