- 专利标题: SCALABLE VIDEO CODING USING INTER-LAYER PREDICTION CONTRIBUTION TO ENHANCEMENT LAYER PREDICTION
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申请号: US16459940申请日: 2019-07-02
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公开(公告)号: US20210266563A9公开(公告)日: 2021-08-26
- 发明人: Tobias HINZ , Haricharan LAKSHMAN , Jan STEGEMANN , Philipp HELLE , Mischa SIEKMANN , Karsten SUEHRING , Detlev MARPE , Heiko SCHWARZ , Christian BARTNIK , Ali Atef Ibrahim KHAIRAT ABDELHAMID , Heiner KIRCHHOFFER , Thomas WIEGAND
- 申请人: GE Video Compression, LLC
- 申请人地址: US NY Albany
- 专利权人: GE Video Compression, LLC
- 当前专利权人: GE Video Compression, LLC
- 当前专利权人地址: US NY Albany
- 主分类号: H04N19/159
- IPC分类号: H04N19/159 ; H04N19/117 ; H04N19/136 ; H04N19/176
摘要:
A scalable video decoder is described which is configured to reconstruct a base layer signal from a coded data stream to obtain a reconstructed base layer signal; and reconstruct an enhancement layer signal including spatially or temporally predicting a portion of an enhancement layer signal, currently to be reconstructed, from an already reconstructed portion of the enhancement layer signal to obtain an enhancement layer internal prediction signal; forming, at the portion currently to be reconstructed, a weighted average of an inter-layer prediction signal obtained from the reconstructed base layer signal, and the enhancement layer internal prediction signal to obtain an enhancement layer prediction signal such that a weighting between the inter-layer prediction signal and the enhancement layer internal prediction signal varies over different spatial frequency components; and predictively reconstructing the enhancement layer signal using the enhancement layer prediction signal.
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