- 专利标题: EFFICIENT MULTI-VIEW CODING USING DEPTH-MAP ESTIMATE FOR A DEPENDENT VIEW
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申请号: US17576873申请日: 2022-01-14
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公开(公告)号: US20220217316A1公开(公告)日: 2022-07-07
- 发明人: Heiko SCHWARZ , 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: H04N13/128
- IPC分类号: H04N13/128 ; H04N13/161 ; H04N19/194 ; H04N19/513 ; H04N19/597 ; H04N19/46 ; H04N19/52 ; H04N19/895
摘要:
The usual coding order according to which the reference view is coded prior to the dependent view, and within each view, a depth map is coded subsequent to the respective picture, may be maintained and does lead to a sacrifice of efficiency in performing inter-view redundancy removal by, for example, predicting motion data of the current picture of the dependent view from motion data of the current picture of the reference view. Rather, a depth map estimate of the current picture of the dependent view is obtained by warping the depth map of the current picture of the reference view into the dependent view, thereby enabling various methods of inter-view redundancy reduction more efficiently by bridging the gap between the views. According to another aspect, the following discovery is exploited: the overhead associated with an enlarged list of motion predictor candidates for a block of a picture of a dependent view is comparatively low compared to a gain in motion vector prediction quality resulting from an adding of a motion vector candidate which is determined from an, in disparity-compensated sense, co-located block of a reference view.
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