Design of an Automated Extraoral Photogrammetry
3D Scanner
Musa Alyaman1,
Alaa Abd-Raheem2, and Farah AlDeiri3
1Department of Mechatronics Engineering, the University of Jordan, Jordan
2Nanolab, German Jordanian University, Jordan,
3Levant Engineering Company, Jordan
Abstract:
Dental anatomy is a field of anatomy dedicated to the study of tooth
structure, it uses 3D physical model for teeth and jaw. Creating a computer aided design
model from an existing teeth or jaw is called 3D scanning. This can be accomplished
using different techniques like: LASER, camera, and many advanced optical
techniques. In this work, Photogrammetry will be used, it is based on camera
scanning technique. The input is a set of photographs taken by a camera from a
predefined positions and orientations, and the output is a 3D model of a
real-world teeth or jaw. Structure from Motion algorithm is used to 3D
reconstruction from 2D images, it produces the point cloud and eventually the
complete textured mesh. Our system is closed, where it controls scanning
conditions in terms of lighting and angles of captured images.
Keywords: 3D scanning, photogrammetry, Structure
from Motion, 3D reconstruction, dental anatomy, teeth impression.
Received September 29, 2018; accepted January 23, 2019