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[1] 陆建荣[1] 刘有军[1] 

机构地区：[1]北京工业大学生命科学与生物工程学院,北京100124

出　　处：《北京生物医学工程》2010年第1期55-58,共4页Beijing Biomedical Engineering

基　　金：国家自然科学基金(10872013);北京市自然科学基金(3092005)资助

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.

关 键 词：OPENGL 全景图像 牙弓曲线 函数 图像处理 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]