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Three-Dimensional Facial Imaging Using a Static Light Screen (SLS) and a Dynamic Subject

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2 Author(s)
McKeon, R.T. ; Univ. of Notre Dame, Notre Dame, IN, USA ; Flynn, P.J.

Many commercially available 3-D sensors suitable for face image capture employ passive or texture-assisted stereo imaging or structured illumination with a moving light stripe. These techniques require a stationary subject. We describe an initial design and evaluation of a fixed-stripe moving object 3-D scanner designed for human faces. Our method of acquisition requires the subject to walk through a static light screen generated by two laser line projectors. Triangulation and tracking applied to the video sequences captured during subject motion yield a 3-D image of the subject's face from multiple images. To demonstrate the accuracy of our initial design, a small-scale facial recognition experiment was executed. In an experiment involving 81 subjects with four images per subject on the average, we used two gallery images per subject, and we achieved 89.6% rank-one recognition using an iterative closest point (ICP)-based matching method, demonstrating the feasibility of the technique.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:59 ,  Issue: 4 )
Biometrics Compendium, IEEE