›› 2009, Vol. 29 ›› Issue (7): 837-.

• Original article (Clinical research) • Previous Articles     Next Articles

Development of three dimensional facial measurement system based on structured light projection

XIONG Yao-yang1, CHEN Xiao-bo2, SUN Jian1, ZHANG Fu-qiang1, XI Jun-tong2   

  1. 1. Department of Prosthodontics, Shanghai Key Laboratory of Stomatology, College of Stomatology, The Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200011, China；2. School of Mechanical Engineening, Shanghai Jiaotong University, Shanghai 200030, China
  • Online:2009-07-25 Published:2009-09-16
  • Supported by:

    Shanghai Science and Technology Committee Foundation, 08DZ2271100; Shanghai Key Discipline Construction Program, T0202; Shanghai Municipal Informatization Committee Foundation, 088

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Abstract:

Objective To construct a system for three dimensional face scanning and measurement. Methods The measurement system was based on the principle of triangulation and the combination of gray-code and phase-shift structured light projection. The system software was developed for Windows XP with the aid of tools such as Visual C++ and Hoops. Results A three dimensional measurement system based on structured light projection was developed. The system hardware was composed of fringe projection unit, image gathering unit, system control unit and mechanical appearance, and the system software was composed of point cloud display and editing module. The lamp house of the system was 12V, the working distance was 900 mm, the scanning time was 5.5 s and the scanning field was 500 mm×400 mm. Conclusion The three dimensional measurement system based on structured light projection is a refined machine with safe light to eyes, and the accuracy and scanning speed are suitable to face scanning.

Key words: structured light, measurement system, face scanning