公开(公告)号：EP1650711A4

公开(公告)日：2008-05-14

申请号：EP04747673

申请日：2004-07-16

申请人： CANON KK

发明人： MORI KATSUHIKO ,  KANEDA YUJI ,  MATSUGU MASAKAZU ,  MITARAI YUSUKE ,  SUZUKI TAKASHI

IPC分类号： G06K9/00 ,  G06T7/20

CPC分类号： G06K9/00281 ,  G06K9/00221 ,  G06K9/00315 ,  G06K9/00664 ,  G06T7/73 ,  G06T2207/10016 ,  G06T2207/20084 ,  G06T2207/30201

摘要： An image including a face is input (S201), a plurality of local features are detected from the input image, a region of a face in the image is specified using the plurality of detected local features (S202), and an expression of the face is determined on the basis of differences between the detection results of the local features in the region of the face and detection results which are calculated in advance as references for respective local features in the region of the face (S204).

公开(公告)号：EP1774470A4

公开(公告)日：2009-07-29

申请号：EP05765449

申请日：2005-06-27

申请人： CANON KK

发明人： SUZUKI TAKASHI ,  MORI KATSUHIKO ,  MATSUGU MASAKAZU

IPC分类号： G06T7/00 ,  G06K9/46

CPC分类号： G06K9/00281 ,  G06K9/00275 ,  G06K9/4628

摘要： A feature extraction unit (23) extracts features of an object of interest included in an image. A local region setting unit (24) sets a local region that includes a feature group required to obtain the shape of the object and a local region that includes a feature group required to obtain the positional relationship. A feature vector generation unit (25) calculates feature vector data in the set local regions. An object recognition unit (26) determines which of different objects the object of interest is, on the basis of the feature vectors.