The fast and accurate 3D-face scanning technology based on laser triangle sensors

Jinjiang Wang; Tianyu Chang; Baozhen Ge; Qingguo Tian; Yang Chen; Bin Kong

doi:10.1117/12.2032915

21 August 2013 The fast and accurate 3D-face scanning technology based on laser triangle sensors

Jinjiang Wang, Tianyu Chang, Baozhen Ge, Qingguo Tian, Yang Chen, Bin Kong

Proceedings Volume 8908, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Sensors and Applications; 89080Y (2013) https://doi.org/10.1117/12.2032915
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

A laser triangle scanning method and the structure of 3D-face measurement system were introduced. In presented system, a liner laser source was selected as an optical indicated signal in order to scanning a line one times. The CCD image sensor was used to capture image of the laser line modulated by human face. The system parameters were obtained by system calibrated calculated. The lens parameters of image part of were calibrated with machine visual image method and the triangle structure parameters were calibrated with fine wire paralleled arranged. The CCD image part and line laser indicator were set with a linear motor carry which can achieve the line laser scanning form top of the head to neck. For the nose is ledge part and the eyes are sunk part, one CCD image sensor can not obtain the completed image of laser line. In this system, two CCD image sensors were set symmetric at two sides of the laser indicator. In fact, this structure includes two laser triangle measure units. Another novel design is there laser indicators were arranged in order to reduce the scanning time for it is difficult for human to keep static for longer time. The 3D data were calculated after scanning. And further data processing include 3D coordinate refine, mesh calculate and surface show. Experiments show that this system has simply structure, high scanning speed and accurate. The scanning range covers the whole head of adult, the typical resolution is 0.5mm.

Citation Download Citation

Jinjiang Wang, Tianyu Chang, Baozhen Ge, Qingguo Tian, Yang Chen, and Bin Kong "The fast and accurate 3D-face scanning technology based on laser triangle sensors", Proc. SPIE 8908, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Sensors and Applications, 89080Y (21 August 2013); https://doi.org/10.1117/12.2032915

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KEYWORDS

Cameras

Imaging systems

Calibration

Structured light

3D image processing

Optical testing

Sensors

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