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Updated: Jul 11, 2026

Quantitative Assessment Protocol for Facial Soft Tissue Volumetric Changes with Stereophotogrammetry
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[A preliminary study on facial profile reconstruction using structured light three-dimensional scanning technique].

Yao-yang Xiong1, Jian Sun, Fu-qiang Zhang

  • 1Department of Prothodontics, School of Stomatology; Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.

Zhonghua Kou Qiang Yi Xue Za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology
|September 25, 2007
PubMed
Summary

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Structured light 3D scanning accurately reconstructs facial profiles with minimal deformation, offering a viable method for facial defect restoration. This technique proves more precise than traditional impression methods.

Area of Science:

  • Medical Imaging
  • Biomedical Engineering
  • Computer-Aided Design

Background:

  • Facial reconstruction presents challenges in achieving accurate and detailed results.
  • Traditional impression methods can lead to deformation and inaccuracies in capturing facial profiles.

Purpose of the Study:

  • To assess the feasibility of using structured light 3D scanning for facial profile reconstruction.
  • To evaluate the accuracy and potential applications of this technique in clinical settings.

Main Methods:

  • A self-developed 3D optical measurement system utilizing Gray-code and phase-shifting was employed.
  • Primitive point data of a volunteer's face and cast were acquired.
  • Data processing and 3D model reconstruction were performed using Imageware and Geomagic software.

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Main Results:

  • Structured light 3D scanning demonstrated reduced deformation compared to conventional impression methods.
  • The technique successfully captured accurate 3D facial profile data.

Conclusions:

  • The developed optical measurement system accurately reconstructs 3D facial profiles using Gray-code and phase-shifting.
  • This technology shows promise for aiding in the 3D reconstruction of facial defects.