METHOD AND APPARATUS FOR DERIVING MOTION VECTORS OF MACRO BLOCKS FROM MOTION VECTORS OF PICTURES OF BASE LAYER WHEN ENCODING/DECODING VIDEO SIGNAL

摘要

The present invention relates to a method and apparatus for encoding a video signal using a motion vector of a predictive video frame of an auxiliary layer and decoding the encoded video data according to the present invention. Outputs the bit stream of the layer and simultaneously encodes the video signal in a predetermined manner to output the bit stream of the base layer, and when encoding in the MCTF method, the motion vector of the block included in the bit stream of the base layer Including an induction vector obtained by scaling the frame size of the base layer with the frame size of the base layer and multiplying the scaled motion vector by a ratio determined from a time difference between frames, in an arbitrary frame of the video signal. Can be used as a motion vector It records the information to the bit stream of the enhanced layer. According to the present invention, the coding amount of a motion vector can be reduced by using correlation between motion vectors between frames having different layers in time.;MCTF, encoding, layer, motion vector, derivation, inter-layer, scaling