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. Author manuscript; available in PMC: 2015 Jan 9.
Published in final edited form as: Conf Proc IEEE Eng Med Biol Soc. 2014 Aug;2014:750–753. doi: 10.1109/EMBC.2014.6943699

Fig. 6.

Fig. 6

Final cleanup. (a) Cut by a standard boundary box. (b) Cleaned by using normal and color thresholds. (c) The surface normal value in the y direction, red means the surface normal is pointing up, and green means facing down. (d) The hue value for the face. A thresholds was chosen for cleaning the noise underneath the chin. (e) (f) Another example before and after final cleanup.