Automatic matching of computed tomography and stereolithography data

S. Woo, S. Lee, J. Chae, J. Rim, J. Lee, J. Seo, Chul Hee Lee

Research output: Contribution to journalArticle

Abstract

Background and Objective: Computed tomography (CT) is one of the most frequently used medical imaging methods. An important application area of CT is dental implants, which require precise inspection and analysis of oral structures. Since CT provides a precise 3D model of the teeth, bones and nerves, it can be used as a surgical guide for dental implants. Along with CT, optical 3D images called stereolithography (STL) have also been widely used. STL images obtained from optical 3D images can be used to show the 3D surfaces of oral structures. Since CT data and STL data deploy different technologies to obtain dental information, we can obtain more accurate dental implants by combining the two datasets. Since the two datasets are acquired by using different sensors, the datasets need to be registered. Methods: An automatic matching algorithm is proposed for CT and STL image registration, which is based on depth maps and maximum intensity projection. Then, fine tuning was performed based on volume matching. Results: When applied to real-world databases, the proposed method provided an average matching error of 2.7 mm for the upper jaw and 2.3 mm for the lower jaw with an average processing time of about 19 s. Conclusions: The proposed method performs accurate registration of CT and STL.

Original languageEnglish
Pages (from-to)215-222
Number of pages8
JournalComputer Methods and Programs in Biomedicine
Volume175
DOIs
Publication statusPublished - 2019 Jul 1

Fingerprint

Stereolithography
Tomography
Dental prostheses
Dental Implants
Tooth
Optical Tomography
Optical tomography
Image registration
Medical imaging
Maxilla
Diagnostic Imaging
Jaw
Bone
Tuning
Inspection
Databases
Technology
Bone and Bones
Sensors
Processing

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Science Applications
  • Health Informatics

Cite this

Woo, S. ; Lee, S. ; Chae, J. ; Rim, J. ; Lee, J. ; Seo, J. ; Lee, Chul Hee. / Automatic matching of computed tomography and stereolithography data. In: Computer Methods and Programs in Biomedicine. 2019 ; Vol. 175. pp. 215-222.
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Automatic matching of computed tomography and stereolithography data. / Woo, S.; Lee, S.; Chae, J.; Rim, J.; Lee, J.; Seo, J.; Lee, Chul Hee.

In: Computer Methods and Programs in Biomedicine, Vol. 175, 01.07.2019, p. 215-222.

Research output: Contribution to journalArticle

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