METHODS AND APPARATUS FOR MOTION COMPENSATION WITH SMOOTH REFERENCE FRAME IN BIT DEPTH SCALABILITY

摘要

Methods and apparatus are provided for motion compensation with a smooth reference frame in bit depth scalability. An apparatus includes an encoder (100) for encoding picture data for at least a portion of a picture by generating an inter-layer residue prediction for the portion using an inverse tone mapping operation performed in the pixel domain for bit depth scalability. The inverse tone mapping operation is shifted from a residue domain to the pixel domain.