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AssigneeSamsung Electronics Co., Ltd.
InventorsKyo-hyuk Lee, Sang-chang Cha, Woo-jin Han
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A method and apparatus are provided for improving the compression efficiency of motion vectors of an unsynchronized picture by efficiently predicting the motion vectors using motion vectors of a lower layer. The method compresses motion vectors of an unsynchronized picture belonging to a current layer in a video encoder based on a multilayer having at least the current layer and a lower layer of the current layer. The method includes selecting a base picture for the unsynchronized picture, generating a predicted motion vector of the current layer from a motion vector of the base picture, subtracting the predicted motion vector from a motion vector of the unsynchronized picture, and encoding the result of subtraction.
A method for compressing motion vectors of an unsynchronized picture belonging to a current layer in a video encoder based on a multilayer having at least the current layer and a lower layer, the method comprising:
A method for decompressing motion vectors of an unsynchronized picture belonging to a current layer in a video decoder based on a multilayer having at least the current layer and a lower layer, the method comprising:
An apparatus for compressing motion vectors of an unsynchronized picture belonging to a current layer in a video encoder based on a multilayer having at least the current layer and a lower layer, the apparatus comprising:
An apparatus for decompressing motion vectors of an unsynchronized picture belonging to a current layer in a video decoder based on a multilayer having at least the current layer and a lower layer, the apparatus comprising:
Dependencies are inferred from the claim text.