可视化上颌骨与牙列三维模型的建立

Construction of a visible three-dimensional model of maxilla and dentition

基于美国可视人计划切片图像数据集建立三维模型。图像分割主要在Adobe Photoshop环境下半自动实现,三维模型的构建和修正采用Mercury公司的Amira软件实现骨模型。建立了上颌骨、上牙列精细的三维模型,此模型可精确的显示眶下孔、眶下沟、神经管;且每颗牙齿独立建模,并能严密地与上颌骨的牙槽配合。结果提示重建后的上颌骨与牙列模型三维效果逼真,立体感强,准确地显示了上颌骨、牙列及精细结构,为教学、科研及虚拟手术等提供了准确逼真的模型。

The computerized three-dimensional （3D） model was constructed based on a series of sliced image of human body from American Visible Human Project （VHP）. The image segmentations were completed with Adobe Photoshop. The constructions and corrections of 3D model adopted Amira software created by Mercury Company. We had constructed the subtle 3D model which could show some anatomic minutiae precisely, such as infraorbital foramen, infraorbital groove and neurocoele. Meanwhile, each tooth was independently remodeled according to its physiological shapes, and could be matched completely with the maxilla and dentition. The reconstructed 3D model has some notable merits such as fidelity, clear three-dimension and high quality to show the fine structure of maxilla and dentition, which can apply to the field of teaching, scientific research and surgery simulations.