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Technical validation of the Di3D stereophotogrammetry surface imaging system.

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Winder, John, Darvann, TA, McKnight, Wesley, Magee, Justin and Ramsey-Baggs, Peter (2007) Technical validation of the Di3D stereophotogrammetry surface imaging system. The British journal of oral & maxillofacial surgery, 46 (1). pp. 33-37. [Journal article]

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Abstract

The purpose of this work was to assess the technical performance of a three-dimensional surface imaging system for geometric accuracy and maximum field of view. The system was designed for stereophotogrammetry capture of digital images from three-dimensional surfaces of the head, face, and neck. A mannequin head was prepared for imaging by adding texture in the form of red paint, and facial landmarks as blackink dots. The mannequin was imaged at the manufacturer’s recommended settings for human studies. Colour-coded surface difference images among repeated exposures were computed. We compared measurements of physical linear distance with digital measurements. The three dimensional stereophotogrammetry system had a mean error in the three-dimensional surfaces of 0.057 mm, a repeatability error (variance)of 0.0016 mm, a mean error of 0.6mm in linear measurements compared with manual measurements, and a field of view of 170◦ horizontally and 102◦ vertically.

Item Type:Journal article
Keywords:Stereophotogrammetry; Three-dimensional surface; Facial morphometry; Geometric validation
Faculties and Schools:Faculty of Arts
Faculty of Arts > School of Creative Arts and Technologies
Research Institutes and Groups:Art and Design Research Institute
Art and Design Research Institute > Future and Virtual Worlds
ID Code:6346
Deposited By:Dr Justin Magee
Deposited On:19 Mar 2010 11:57
Last Modified:23 Jun 2011 16:49

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