Patent ID: 8711948
Filing Date: 2014-04-29
Classification: H04N

Abstract:
1. A method comprising: encoding base layer video to produce at least part of a base layer bit stream; scaling inter-layer residual video that represents differences between the base layer video and an input video, including scaling samples of the inter-layer residual video from a first sample depth to a second sample depth lower than the first sample depth; encoding the scaled inter-layer residual video at the second sample depth to produce at least part of an enhancement layer bit stream, wherein the encoding the scaled inter-layer residual video includes sample-domain prediction of blocks or macroblocks of a current picture of the scaled inter-layer residual video relative to one or more reference pictures of previously reconstructed scaled inter-layer residual video, and wherein the sample-domain prediction uses motion compensation of the blocks or macroblocks of the current picture of the scaled inter-layer residual video relative to the one or more reference pictures of the previously reconstructed scaled inter-layer residual video; and signaling the at least part of the base layer bit stream and the at least part of the enhancement layer bit stream, wherein the enhancement layer bit stream includes motion information for the blocks or macroblocks of the current picture of the scaled inter-layer residual video.