(30) Foreign Application Priority Data
Aug. 15,2002 (JP) 2002-274058
Aug. 15,2002 (JP) 2002-274059
(51) Int. CI.
G06K 9/00 (2006.01)
(52) U.S. CI 382/107; 382/103
(58) Field of Classification Search 382/103,
See application file for complete search history. (56) References Cited
U.S. PATENT DOCUMENTS
6,307,888 Bl* 10/2001 Le Clerc 375/240.29
6,317,819 Bl* 11/2001 Morton 712/22
6,856,701 B2 * 2/2005 Karczewicz et al 382/247
FOREIGN PATENT DOCUMENTS
EP 1 096 791 A2 5/2001
An image processing device and an image processing method calculate motion vectors with a small amount of calculation. A frame memory stores first and second image data, a memory includes multiple elements, and a control unit. Each element includes a pixel for storing a first pixel value of a first pixel of the first image data, a pixel for storing a second pixel value of a second pixel of the second image data, a minimal pixel difference storage unit for storing a first difference value, a motion vector storage unit for storing phase information, a comparison updating unit for comparing the first difference value stored in the minimal pixel difference storage unit, with a second difference value between the first pixel and the second pixel, updating the first difference value with the second difference value according to the results of comparison, and outputting updating information according to said updating, and an updating unit for updating the phase information according to the updating information.
49 Claims, 37 Drawing Sheets