US 7,574,037 B2
Device and method for detecting object and device and method for group learning
Kenichi Hidai, Tokyo (Japan); Kohtaro Sabe, Tokyo (Japan); and Kenta Kawamoto, Tokyo (Japan)
Assigned to Sony Corporation, Tokyo (Japan)
Filed on Nov. 22, 2004, as Appl. No. 10/994,942.
Claims priority of application No. 2003-394556 (JP), filed on Nov. 25, 2003.
Prior Publication US 2005/0280809 A1, Dec. 22, 2005
Int. Cl. G06K 9/62 (2006.01); G06K 9/00 (2006.01)
U.S. Cl. 382—159  [382/103; 382/118] 37 Claims
OG exemplary drawing
 
1. An object detecting device for detecting if a given grayscale image is an object, the device comprising:
a plurality of weak discriminating means for computing an estimate indicating that the grayscale image is an object or not according to a characteristic quantity that is equal to the difference of the luminance values of two pixels at two different positions; and
a discriminating means for judging if the grayscale image is an object according to the estimate computed by one of or the estimates computed by more than one of the plurality of weak discriminating means.