- 专利标题: Method and apparatus of motion vector prediction for scalable video coding
-
申请号: US15866434申请日: 2018-01-09
-
公开(公告)号: US10939130B2公开(公告)日: 2021-03-02
- 发明人: Xiaoyu Xiu , Yan Ye , Yong He , Yuwen He
- 申请人: Vid Scale, Inc.
- 申请人地址: US DE Wilmington
- 专利权人: Vid Scale, Inc.
- 当前专利权人: Vid Scale, Inc.
- 当前专利权人地址: US DE Wilmington
- 代理机构: Condo Roccia Koptiw LLP
- 主分类号: H04N19/30
- IPC分类号: H04N19/30 ; H04N19/70 ; H04N19/52 ; H04N19/33 ; H04N19/51 ; H04N19/31 ; H04N19/46 ; H04N19/587 ; H04N19/59
摘要:
Inter-layer motion mapping information may be used to enable temporal motion vector prediction (TMVP) of an enhancement layer of a bitstream. For example, a reference picture and a motion vector (MV) of an inter-layer video block may be determined. The reference picture may be determined based on a collocated base layer video block. For example, the reference picture may be a collocated inter-layer reference picture of the reference picture of the collocated base layer video block. The MV may be determined based on a MV of the collocated base layer video block. For example, the MV may be determined by determining the MV of the collocated base layer video block and scaling the MV of the collocated base layer video block according to a spatial ratio between the base layer and the enhancement layer. TMVP may be performed on the enhancement layer picture using the MV of the inter-layer video block.
公开/授权文献
信息查询