北京生物醫(yī)學(xué)工程

基于β函數(shù)和OpenGL的全景齒科圖像立體顯示

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

作者：脫妮婭陸建榮劉有軍

單位：北京工業(yè)大學(xué)生命科學(xué)與生物工程學(xué)院（北京 100124）

關(guān)鍵詞： OpenGL；全景圖像；牙弓曲線；函數(shù)；圖像處理

分類號：

出版年·卷·期（頁碼）：2010·29·1（55-58）

摘要：

本文討論了一種使用OpenGL技術(shù)對全景齒科X光圖像進(jìn)行立體顯示的方法。首先根據(jù)牙弓曲線特點(diǎn)，決定選用β函數(shù)曲線做為牙弓曲線擬合方法，按照用戶給出的病人磨牙寬度、磨牙深度、尖牙寬度和尖牙深度進(jìn)行牙弓曲線擬合。然后應(yīng)用OpenGL中的紋理映射和三維繪制技術(shù)對全景齒科圖像進(jìn)行彎曲，并配合光照、旋轉(zhuǎn)等功能，達(dá)到二維圖像的立體顯示效果。

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.

參考文獻(xiàn)：

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