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http://dx.doi.org/10.7315/CADCAM.2013.283

Dental Impression Measurement Based on an Adaptive Measuring Process Plan  

Park, Sang Chul (Department of Industrial Engineering, Ajou University)
Chung, Yong Ho (Department of Industrial Engineering, Ajou University)
Hwam, Won Kyung (Department of Industrial Engineering, Ajou University)
Publication Information
Korean Journal of Computational Design and Engineering / v.18, no.4, 2013 , pp. 283-289 More about this Journal
Abstract
Presented in this paper is an adaptive measuring procedure of dental impression using the Structured Light System. While measuring a complex object, such as dental impression, in the reverse engineering, it is not possible to acquire all parts of the scanned surface. Missing scanned data is resulted in holes in a created triangular mesh. The focus of this paper is to introduce an algorithm for automatic identification of additional scanning orientations to fill holes that are created by a default scan. The proposed algorithm was developed by the three major technological requirements: camera visibility, projector visibility, data reliability. In order to satisfy the requirements, the proposed algorithm determines additional scanning orientation from the orientation of a projection plane derived from the average normal vector of boundary triangles.
Keywords
Dental Impression; Structured light system; Scanning Orientation; Visibility; Triangular mesh;
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