公开(公告)号：US20180316937A1

公开(公告)日：2018-11-01

申请号：US15961677

申请日：2018-04-24

Applicant: Intel Corporation

Inventor： Wenhao ZHANG ,  Yi-Jen CHIU ,  Lidong XU ,  Yu HAN ,  Hong JIANG

IPC: H04N19/63 ,  H04N19/30

CPC classification number: H04N19/63 ,  H04N19/132 ,  H04N19/157 ,  H04N19/18 ,  H04N19/30 ,  H04N19/36

Abstract: Methods, systems, and computer program products for the generation of multiple layers of scaled encoded video data compatible with the HEVC standard. Residue from prediction processing may be transformed into coefficients in the frequency domain. The coefficients may then be sampled to create a layer of encoded data. The coefficients may be sampled in different ways to create multiple respective layers. The layers may then be multiplexed and sent to a decoder. There, one or more of the layers may be chosen. The choice of certain layer(s) may be dependent on the desired attributes of the resulting video. A certain level of video quality, frame rate, resolution, and/or bit depth may be desired, for example. The coefficients in the chosen layers may then be assembled to create a version of the residue to be used in video decoding.