title: [Assessment of precision and accuracy of digital surface photogrammetry with the DSP 400 system].
abstract: The objective of the present study was to evaluate the precision and accuracy of facial anthropometric measurements obtained through digital 3-D surface photogrammetry with the DSP 400 system in comparison to traditional 2-D photogrammetry. Fifty plaster casts of cleft infants were imaged and 21 standard anthropometric measurements were obtained. For precision assessment the measurements were performed twice in a subsample. Accuracy was determined by comparison of direct measurements and indirect 2-D and 3-D image measurements. Precision of digital surface photogrammetry was almost as good as direct anthropometry and clearly better than 2-D photogrammetry. Measurements derived from 3-D images showed better congruence to direct measurements than from 2-D photos. Digital surface photogrammetry with the DSP 400 system is sufficiently precise and accurate for craniofacial anthropometric examinations.
authors.affiliation: Klinik und Poliklinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Tübingen, Osianderstr. 2-8, 72076 Tübingen. Michael.Krimmel@med.uni-tuebingen.de
authors.forename: M
authors.initials: M
authors.lastname: Krimmel
authors.forename: S
authors.initials: S
authors.lastname: Kluba
authors.forename: K
authors.initials: K
authors.lastname: Dietz
authors.forename: S
authors.initials: S
authors.lastname: Reinert
mesh_terms: D000465:Algorithms; D000886:Anthropometry / Q000295:instrumentation / Q000379:methods; D002971:Cleft Lip / Q000473:pathology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005145:Face / Q000473:pathology*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000295:instrumentation* / Q000379:methods; D007223:Infant; D016247:Information Storage and Retrieval / Q000379:methods*; D008297:Male; D010780:Photogrammetry / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*