北京生物医学工程

基于β函数和OpenGL的全景齿科图像立体显示

ThreeDimensional Display of Orthopantomogram Images Based on β Function and OpenGL

作者：脱妮娅陆建荣刘有军

单位：北京工业大学生命科学与生物工程学院（北京 100124）

分类号：

出版年·卷·期（页码）：2010·29·1（55-58）

摘要：

本文讨论了一种使用OpenGL技术对全景齿科X光图像进行立体显示的方法。首先根据牙弓曲线特点，决定选用β函数曲线做为牙弓曲线拟合方法，按照用户给出的病人磨牙宽度、磨牙深度、尖牙宽度和尖牙深度进行牙弓曲线拟合。然后应用OpenGL中的纹理映射和三维绘制技术对全景齿科图像进行弯曲，并配合光照、旋转等功能，达到二维图像的立体显示效果。

A method was proposed in this paper to bend the orthopantomogram inages according to the curve which was fitted by the patientspecific dental arch for the 3D display of orthopantomogram images.Based on the study of the fitting method of dental arches, the β function was chosen to fit the patients dental arch. Four factors were considered in the curve fitting, they were the width of the patients molar, the depth of the molar,the width of patients tusk and the depth of the tusk.The OpenGL toolkit was used in this project to complete the texture generation,the surface rendering and the controlling of lighting and rotation.

参考文献：

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