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Related Experiment Videos

Quantification of facial surface change using a structured light scanner

G Bhatia1, M W Vannier, K E Smith

  • 1Mallinckrodt Institute of Radiology, St. Louis, Mo.

Plastic and Reconstructive Surgery
|November 1, 1994
PubMed
Summary
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This study introduces a noninvasive optical 3D scanner for precise facial surface change measurement after surgery. The technology accurately quantifies facial morphology and volume changes, offering an objective assessment tool.

Area of Science:

  • Biomedical Engineering
  • Plastic Surgery
  • Medical Imaging

Background:

  • Assessing facial changes after surgery traditionally relies on manual measurements of specific points.
  • Objective and quantitative methods are needed for precise evaluation of reconstructive and cosmetic plastic surgery outcomes.
  • Existing techniques may lack comprehensive surface coverage or quantitative accuracy.

Purpose of the Study:

  • To develop and validate a noninvasive, noncontact optical method for quantifying three-dimensional (3D) facial surface changes.
  • To assess the accuracy of a 3D surface scanning system in measuring volume changes in facial tissues.
  • To provide an objective tool for evaluating outcomes in facial plastic and reconstructive surgery.

Main Methods:

  • Utilized an optical 3D surface scanner with 360-degree head coverage and subsecond data acquisition.

Related Experiment Videos

  • Employed a system with six pairs of white light pattern projectors and digital TV cameras for data capture.
  • Developed a quantification technique to define the entire facial surface, moving beyond traditional landmark measurements.

    • Main Results:

    • The developed method accurately quantifies facial surface morphology and volume changes.
    • Testing with a volunteer showed minimal differences between measured and injected volumes of anesthetic solution.
    • The 3D scanner provides comprehensive surface data, unlike conventional point-based measurements.

    Conclusions:

    • The noncontact optical 3D surface scanning method offers a precise and objective way to evaluate facial changes post-surgery.
    • This technology enables accurate facial volume change assessment, crucial for reconstructive and cosmetic procedures.
    • The system provides a significant advancement over manual measurement techniques for facial analysis.