FACIAL NORMAL MAP CAPTURE USING FOUR LIGHTS - An Effective and Inexpensive Method of Capturing the Fine Scale Detail of Human Faces using Four Point Lights

Jasenko Zivanov, Pascal Paysan, Thomas Vetter

2009

Abstract

Obtaining photorealistic scans of human faces is both challenging and expensive. Capturing the highfrequency components of skin surface structure requires the face to be scanned at very high resolutions, outside the range of most structured light 3D scanners. We present a novel and simple enhancement to the acquisition process, requiring only four photographic flashlights and three texture cameras attached to the structured light scanner setup. The three texture cameras capture one texture map (luminance map) of the face as illuminated by each of the four flash-lights. Based on those four luminance textures, three normal maps of the head are approximated, one for each color channel. Those normal maps are then used to reconstruct a 3D model of the head at a much higher mesh resolution, in order to validate the normals. Finally, the validated normals are used as a normal map at rendering time. Alternatively, the reconstructed high resolution model can also be used for rendering.

Paper Citation

in Harvard Style

Zivanov J., Paysan P. and Vetter T. (2009). FACIAL NORMAL MAP CAPTURE USING FOUR LIGHTS - An Effective and Inexpensive Method of Capturing the Fine Scale Detail of Human Faces using Four Point Lights . In Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009) ISBN 978-989-8111-67-8, pages 13-20. DOI: 10.5220/0001773300130020

in Bibtex Style

@conference{grapp09,
author={Jasenko Zivanov and Pascal Paysan and Thomas Vetter},
title={FACIAL NORMAL MAP CAPTURE USING FOUR LIGHTS - An Effective and Inexpensive Method of Capturing the Fine Scale Detail of Human Faces using Four Point Lights},
booktitle={Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)},
year={2009},
pages={13-20},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001773300130020},
isbn={978-989-8111-67-8},
}

in EndNote Style

TY - CONF
JO - Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)
TI - FACIAL NORMAL MAP CAPTURE USING FOUR LIGHTS - An Effective and Inexpensive Method of Capturing the Fine Scale Detail of Human Faces using Four Point Lights
SN - 978-989-8111-67-8
AU - Zivanov J.
AU - Paysan P.
AU - Vetter T.
PY - 2009
SP - 13
EP - 20
DO - 10.5220/0001773300130020