Invention Grant
- Patent Title: Method and apparatus of motion vector prediction for scalable video coding
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Application No.: US15866434Application Date: 2018-01-09
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Publication No.: US10939130B2Publication Date: 2021-03-02
- Inventor: Xiaoyu Xiu , Yan Ye , Yong He , Yuwen He
- Applicant: Vid Scale, Inc.
- Applicant Address: US DE Wilmington
- Assignee: Vid Scale, Inc.
- Current Assignee: Vid Scale, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Condo Roccia Koptiw LLP
- Main IPC: H04N19/30
- IPC: H04N19/30 ; H04N19/70 ; H04N19/52 ; H04N19/33 ; H04N19/51 ; H04N19/31 ; H04N19/46 ; H04N19/587 ; H04N19/59

Abstract:
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.
Public/Granted literature
- US20180131952A1 METHOD AND APPARATUS OF MOTION VECTOR PREDICTION FOR SCALABLE VIDEO CODING Public/Granted day:2018-05-10
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