Academic Journal
Validation and reproducibility of a high-resolution three-dimensional facial imaging system
| Title: | Validation and reproducibility of a high-resolution three-dimensional facial imaging system |
|---|---|
| Authors: | Nairn, N, Khambay, B, Bell, A, Miller, J, Bowman, A, Ayoub, AF |
| Source: | British Journal of Oral and Maxillofacial Surgery. 46:27-32 |
| Publisher Information: | Elsevier BV, 2008. |
| Publication Year: | 2008 |
| Subject Terms: | Photogrammetry - Methods, Imaging, Three-Dimensional - Methods - Standards, Adult, Male, Three-Dimensional - Methods - Standards, Cephalometry, Image Processing, Software Validation, Reproducibility of Results, Cephalometry - Methods, Imaging, 03 medical and health sciences, Computer-Assisted, Imaging, Three-Dimensional, 0302 clinical medicine, Face - Anatomy & Histology, Face, Photogrammetry, Image Processing, Computer-Assisted, Humans, Female, Reproducibility Of Results, Analog-Digital Conversion |
| Description: | To assess the accuracy and reproducibility of a high-resolution three-dimensional imaging system (Di3D).The three-dimensional imaging system was validated in vitro using 12 adult facial plaster casts, which had landmarks marked, and the positions of the landmarks on the three-dimensional images captured by Di3D were compared with those obtained by a coordinate measuring machine (CMM).Operator error was measured by repeatedly locating landmarks on the three-dimensional image. Reproducibility error of the images was calculated by capturing three-dimensional images of the facial casts on two separate occasions; the Euclidean distance between the two matched sets of coordinates was then calculated. The Di3D system error was assessed by calculating the three-dimensional global positions of landmarks on the three-dimensional images and comparing them with those obtained by CMM (gold standard).The operator error in placement of landmarks on the three-dimensional model was 0.07mm, range 0.02-0.11mm. The reproducibility of the Di3D capture was 0.13mm, range 0.11-0.14mm. The mean distance between the CMM and Di3D landmarks, which constitutes the Di3D system error, was an average of 0.21mm, range 0.14-0.32mm.The Di3D system error was within 0.2mm, which is clinically acceptable, and offers considerable improvement in stereophotogrammetry for facial capture and analysis. |
| Document Type: | Article |
| Language: | English |
| ISSN: | 0266-4356 |
| DOI: | 10.1016/j.bjoms.2007.04.017 |
| Access URL: | https://pubmed.ncbi.nlm.nih.gov/17561318 http://eprints.gla.ac.uk/6954/ https://pubmed.ncbi.nlm.nih.gov/17561318/ https://www.sciencedirect.com/science/article/pii/S0266435607001076 http://www.sciencedirect.com/science/article/pii/S0266435607001076 https://europepmc.org/abstract/MED/17561318 https://core.ac.uk/display/38003698 http://hdl.handle.net/10722/174214 |
| Rights: | Elsevier TDM |
| Accession Number: | edsair.doi.dedup.....d5077d816a106a5bc6115ad4285bec96 |
| Database: | OpenAIRE |
| ISSN: | 02664356 |
|---|---|
| DOI: | 10.1016/j.bjoms.2007.04.017 |