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. Author manuscript; available in PMC: 2013 May 18.
Published in final edited form as: IEEE Trans Pattern Anal Mach Intell. 2010 Nov;32(11):10.1109/TPAMI.2010.28. doi: 10.1109/TPAMI.2010.28

Fig. 12.

Fig. 12

(a) Shown here is an example of nose detection using the subclass approach defined in this paper. Refinement is done with a voting approach over various scales. (b) From left to right and top to bottom: gradient of the nose region found in (a), y projection of the gradient, x projection, and final detection of the nose shape and nostrils.