Patent ID: 8498449
Filing Date: 2013-07-30
Classification: G06K

Abstract:
1. An eye part detecting device comprising: image acquiring means that acquires a face image; edge obtaining means that obtains a plurality of horizontal edges each comprising a sequence of pixels of horizontally varying luminance, and a plurality of vertical edges each comprising a sequence of pixels of vertically varying luminance; eyelid candidate determination means that finds positional relations between the acquired plurality of horizontal and vertical edges, and determines horizontal edges and vertical edges between which a predetermined condition of positional relation is satisfied, as upper eyelid candidates and lower eyelid candidates which are paired with each other; and eyelid determination means that finds geometrical relations between the upper eyelid candidates and the lower eyelid candidates which are paired with each other, and determines an upper eyelid candidate and a lower eyelid candidate which are paired with each other and between which a predetermined condition of geometrical relation is satisfied, as the upper eyelid and the lower eyelid, respectively, wherein the eyelid candidate determination means includes lower eyelid candidate discriminating means that classifies the lower eyelid candidates into lower eyelid candidates and lower eyelid preliminary candidates whose vertical direction edges do not satisfy the predetermined condition thereof, and the eyelid determination means includes: