Image signal coding system

Details Image signal coding system Image signal coding system

H - Electricity

04

N

H04N 7/32 (2006.01)

Patent

CA 2234391

An adaptive blocking coding system selects an effective blocking of an input image signal to be encoded in accordance with the correlation between fields, even if motion is detected between the fields. The blocking patterns include an individual field blocking, a non-interlace blocking, a split blocking and an inverted split blocking. Further, the coding system searches for motion from both odd and even fields of a frame for producing a motion compensated prediction signal in order to provide high-efficient coding.

Un système de codage à blocage adaptatif sélectionne un groupage efficace d'un signal d'image d'entrée à coder conformément à la corrélation entre champs, même si un mouvement est détecté entre les champs. Les structures de groupage comprennent un groupage de champ individuel, un groupage sans entrelacement, un groupage séparatif et un groupage séparatif inversé. En outre, le système de codage recherche le mouvement provenant des champs impairs et pairs d'une trame pour produire un signal prédictif à compensation de mouvement afin d'assurer un codage de grande efficacité.

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