牙冠的三维点云数据重建技术研究

利用三维激光扫描仪扫描全牙列模型，对获得的数据进行处理，重构牙冠的三维图形；将获得的三维点云数据进行处理，包括数据平滑、数据精简、特征提取、数据分割、自由曲面建模等实现牙冠的三维重构；得到牙冠的三维重建数字模型，可用于全冠的计算机辅助制作，并结合中国人的标准牙冠数据，对其调整变形，得到标准的牙冠模型；该技术将会为口腔医生带来便利和高效。

Research of Three-dimensional Cloud Data Reconstruction of Full Crown

The acquired data of 28 standard gypsum teeth crowns scanned by a 3-D laser scanner are processed, then the 3-D models of the crowns are reconstructed. The acquired 3-D points cloud data are processed for smoothing, reduction, extracting of feature lines, segmentation, free form surface cnodeling etc to achieve reconstruction of the crowns. The reconstruction might be applied for CAD/CAM of full crown. Varying and adjusting the crowns depend on Chinese standard data of the crowns to gain the standard the crowns model. This technique will brought advantage and efficiency for dentists.