公开(公告)号：US20240223764A1

公开(公告)日：2024-07-04

申请号：US18392715

申请日：2023-12-21

申请人： Alibaba (China) Co., Ltd.

发明人： Shurun WANG ,  Jie CHEN ,  Yan YE ,  Shiqi WANG

IPC分类号： H04N19/132 ,  H04N19/172 ,  H04N19/31 ,  H04N19/46

CPC分类号： H04N19/132 ,  H04N19/172 ,  H04N19/31 ,  H04N19/46

摘要： Methods and apparatuses are provided for encoding and decoding video data based on a supplemental enhancement information (SEI) message. An exemplary method includes: generating a reconstrued frame sequence based on a compressed video; decoding a supplemental enhancement information (SEI) message with respect to the reconstrued frame sequence, according to the compressed video; and performing temporal upsampling to the reconstrued frame sequence based on the SEI message by using a neural network.

公开(公告)号：US20240251098A1

公开(公告)日：2024-07-25

申请号：US18408100

申请日：2024-01-09

申请人： Alibaba (China) Co., Ltd.

发明人： Bolin CHEN ,  Zhao WANG ,  Yan YE ,  Shiqi WANG

IPC分类号： H04N19/543 ,  G06T17/20 ,  G06T19/20 ,  G06V10/766 ,  G06V10/77 ,  G06V20/40 ,  G06V40/16 ,  G06V40/20 ,  H04N19/587

CPC分类号： H04N19/543 ,  G06T17/20 ,  G06T19/20 ,  G06V10/766 ,  G06V10/7715 ,  G06V20/41 ,  G06V40/176 ,  G06V40/20 ,  H04N19/587 ,  G06T2219/2021

摘要： A method of encoding a video sequence into a bitstream includes receiving a video sequence; encoding one or more pictures of the video sequence; and generating a bitstream. The encoding includes compressing a reference picture; transforming, based on the reference picture, a plurality of inter pictures associated with the reference picture into facial semantics; and encoding the facial semantics.

公开(公告)号：US20240223813A1

公开(公告)日：2024-07-04

申请号：US18392557

申请日：2023-12-21

申请人： Alibaba (China) Co., Ltd.

发明人： Bolin CHEN ,  Jie CHEN ,  Shurun WANG ,  Yan YE ,  Shiqi WANG

IPC分类号： H04N19/70 ,  H04N19/124 ,  H04N19/136 ,  H04N19/172

CPC分类号： H04N19/70 ,  H04N19/124 ,  H04N19/136 ,  H04N19/172

摘要： A method of decoding a bitstream to output one or more pictures for a video stream, includes: receiving a bitstream; and decoding, using coded information of the bitstream, one or more pictures. The decoding includes: determining, based on an identifying number, whether a face video generative compression scheme is used; in response to a determination that the face video generative compression scheme is used, decoding a supplemental enhancement information (SEI) message, the SEI message comprising facial information; and reconstructing a face picture based on the facial information and a base picture associated with the SEI message.