3D measurement of human face by stereophotogrammetry

Holger Wagner; Axel Wiegmann; Richard Kowarschik; Friedrich Zöllner

doi:10.1117/12.667470

2 February 2006 3D measurement of human face by stereophotogrammetry

Holger Wagner, Axel Wiegmann, Richard Kowarschik, Friedrich Zöllner

Proceedings Volume 6026, ICO20: Biomedical Optics; 60261E (2006) https://doi.org/10.1117/12.667470
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

The following article describes a stereophotogrammetry based technique for 3D measurement of human faces. The method was developed for function orientated diagnostics and therapy in dentistry to provide prognoses for jaw-growth or surgical procedures. The main aim of our activities was to realize both -- a rapid measurement and a dense point cloud. The setup consists of two digital cameras in a convergent arrangement and a digital projector. During the measurement a rapid sequence of about 20 statistical generated patterns were projected onto the face and synchronously captured by the two cameras. Therefore, every single pixel of the two cameras is encoded by a characteristically stack of intensity values. To find corresponding points into the image sequences a correlation technique is used. At least, the 3D reconstruction is done by triangulation. The advantages of the shown method are the possible short measurement time (< 1 second) and - in comparison to gray code and phase shift techniques - the low quality requirements of the projection unit. At present the reached accuracy is +/- 0.1mm (rms), which is sufficient for medical applications. But the demonstrated method is not restricted to evaluate the shape of human faces. Also technical objects could be measured.

Citation Download Citation

Holger Wagner, Axel Wiegmann, Richard Kowarschik, and Friedrich Zöllner "3D measurement of human face by stereophotogrammetry", Proc. SPIE 6026, ICO20: Biomedical Optics, 60261E (2 February 2006); https://doi.org/10.1117/12.667470

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available