H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/32 (2006.01) H04N 7/26 (2006.01) H04N 7/28 (2006.01) H04N 7/36 (2006.01)
Patent
CA 2314976
In a motion vector detection method for detection the motion vector of a field picture conforming to the interlaced scanning system, a motion vector of a second field picture is detected in a pre-set search range using a first field picture. A search range in detecting the motion vector for a third field picture is computed by comparing a field-to-field distance between a field picture to be referred to and the third field picture and the field-to-field distance between the first field picture and the second field picture. The motion vector of the third field picture is detected in a search range computed with a point indicated by the motion vector of the second field picture as a start point to reduce the processing volume in detecting the motion vector for the field pictures of the interlaced scanning system.
Dans un codage d'image conforme à la norme MPEG (groupe d'experts pour le codage d'images animées), une zone de recherche est calculée afin de détecter un vecteur de mouvement à l'aide de la corrélation entre une image de trame et une image de cadre, la corrélation entre les distances entre images, ainsi que la corrélation entre les blocs de pixels dans une image, et un vecteur de mouvement est détecté dans la zone de recherche, réduisant ainsi la complexité de calcul.
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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