A three-dimensional scanning apparatus based on structured illumination method and its application in dental scanning

Jae Sung Ahn; Anjin Park; Ju Wan Kim; Byeong Ha Lee; Joo Beom Eom

doi:10.1117/12.2271018

23 August 2017 A three-dimensional scanning apparatus based on structured illumination method and its application in dental scanning

Jae Sung Ahn, Anjin Park, Ju Wan Kim, Byeong Ha Lee, Joo Beom Eom

Author Affiliations +

Proceedings Volume 10373, Applied Optical Metrology II; 103730T (2017) https://doi.org/10.1117/12.2271018
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

We demonstrated a three-dimensional (3D) dental scanning apparatus based on structured illumination. A liquid lens was used for tuning focus and a piezomotor stage was used for shift of structured light. A simple algorithm, which detects intensity modulation, was used to perform optical sectioning with structured illumination. We reconstructed 3D point cloud, which represents the 3D coordinates of the digitized surface, of a dental gypsum cast by piling up sectioned images. We performed 3D registration of individual 3D point cloud, which includes alignment and merging the 3D point clouds, to exhibit a 3D model of the dental cast.

Conference Presentation

Citation Download Citation

Jae Sung Ahn, Anjin Park, Ju Wan Kim, Byeong Ha Lee, and Joo Beom Eom "A three-dimensional scanning apparatus based on structured illumination method and its application in dental scanning", Proc. SPIE 10373, Applied Optical Metrology II, 103730T (23 August 2017); https://doi.org/10.1117/12.2271018

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