Patent ID: 7190829
Filing Date: 2007-03-13
Classification: G06K

Abstract:
1. A method for use in face detection, the method comprising: establishing a plurality of initial candidate windows within a digital image, said digital image having a plurality of pixels represented by color space information; for each initial candidate window, examining said color space information for each of at least a portion of said pixels within said initial candidate window and classifying each of said examined pixels as being either a skin color pixel or a non-skin color pixel; and establishing a plurality of subsequent candidate windows that includes at least a portion of said initial candidate windows based on said classified pixels within each of said initial candidate windows; wherein classifying each of said examined pixels as either said skin color pixel or said non-skin color pixel further includes classifying “gray” pixels as skin color pixels; and wherein said “gray” pixels have associated chrominance information Cr and Cb substantially equal to zero.