METHODS AND DEVICES FOR INTER-LAYER PREDICTION IN SCALABLE VIDEO COMPRESSION,申请号CA20132807404-传众专利搜索

METHODS AND DEVICES FOR INTER-LAYER PREDICTION IN SCALABLE VIDEO COMPRESSION

申请公布号：CA2807404(A1)

申请号：CA20132807404

申请日期：2013.02.25

申请公布日期：2014.03.04

申请人：

RESEARCH IN MOTION LIMITED

发明人：WANG, JING;HE, DAKE;YU, XIANG;JI, TIANYING

分类号：H04N19/34;H04N19/117;H04N19/187;H04N19/82

主分类号：H04N19/34

摘要：<p>Methods and devices for encoding and decoding scalable video are described. In one aspect, a method of reconstructing, in a video decoder, an enhancement-layer image based upon a reconstructed reference-layer image using inter-layer prediction is described. The method includes reconstructing a reference-layer residual and a reference-layer prediction, wherein the reference-layer residual and the reference-layer prediction, when combined, form the reconstructed reference-layer image; up-sampling the reference-layer residual using a first up-sampling operation; up-sampling the reference-layer prediction using a second up-sampling operation different from the first up-sampling operation; generating an inter-layer prediction using the up-sampled reference-layer residual and the up-sampled reference-layer prediction; and reconstructing the enhancement-layer image based upon the inter-layer prediction.</p>