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Measuring facial swelling using three-dimensional imaging

J Bowskill1, C Baldock, P W Booth

  • 1Advanced Perception research Unit, British Telecom Research Laboratories, Martlesham Heath, Ipswich, UK.

Medical Informatics = Medecine Et Informatique
|April 1, 1997
PubMed
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This study introduces a Spatial Vision System (SVS) for non-invasive, quantitative facial swelling analysis. The SVS achieves high accuracy (within 3.5% error) in measuring facial volume changes, aiding clinical assessment.

Area of Science:

  • Medical Imaging
  • Biomedical Engineering
  • Quantitative Analysis

Background:

  • Clinical need for objective facial swelling measurement.
  • Subjectivity of current visual assessments.
  • Advancements in 3D imaging technology.

Purpose of the Study:

  • To develop and validate a non-invasive system for quantitative facial volume analysis.
  • To accurately measure and segment facial swelling post-operatively.
  • To improve clinical assessment of facial edema.

Main Methods:

  • Utilized a Spatial Vision System (SVS) for 3D facial surface reconstruction.
  • Employed stereo matching with speckled illumination for image acquisition.
  • Applied spatial alignment, volume differencing, and 3D region growing for quantification.

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Main Results:

  • Achieved quantitative measurement of facial swelling with mean error within 3.5%.
  • Demonstrated accurate registration and segmentation of post-operative swelling.
  • Established a reliable method for volumetric quantification of facial changes.

Conclusions:

  • The Spatial Vision System provides accurate and non-invasive quantitative analysis of facial swelling.
  • This technology has the potential to significantly improve clinical assessment of facial edema.
  • Future work includes developing an Enhanced Reality visualization tool for real-time feedback.