[Assessment of precision and accuracy of digital surface photogrammetry with the DSP 400 system]

Biomed Tech (Berl). 2005 Mar;50(3):45-53. doi: 10.1515/BMT.2005.008.
[Article in German]

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.

Publication types

  • Clinical Trial
  • Comparative Study
  • Controlled Clinical Trial
  • Validation Study

MeSH terms

  • Algorithms
  • Anthropometry / instrumentation
  • Anthropometry / methods
  • Cleft Lip / pathology*
  • Equipment Design
  • Equipment Failure Analysis
  • Face / pathology*
  • Female
  • Humans
  • Image Enhancement / instrumentation
  • Image Enhancement / methods
  • Image Interpretation, Computer-Assisted / instrumentation*
  • Image Interpretation, Computer-Assisted / methods
  • Imaging, Three-Dimensional / instrumentation*
  • Imaging, Three-Dimensional / methods
  • Infant
  • Information Storage and Retrieval / methods*
  • Male
  • Photogrammetry / instrumentation
  • Photogrammetry / methods*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Signal Processing, Computer-Assisted / instrumentation*