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5. 发明授权

EP2279622B1 BIT-DEPTH SCALABILITY 有权转让
标题翻译：位深度可扩展性
公开(公告)号：EP2279622B1
公开(公告)日：2014-10-01
申请号：EP08735287.8
申请日：2008-04-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： WIEGAND, Thomas , WINKEN, Martin
IPC分类号： H04N19/00
CPC分类号： H04N19/593 , H04N19/117 , H04N19/184 , H04N19/33 , H04N19/36 , H04N19/80 , H04N19/82

6. 发明公开

EP2559245A1 VIDEO CODING USING MULTI-TREE SUB - DIVISIONS OF IMAGES 有权转让
标题翻译：多叉树细分用于视频编码的影像
公开(公告)号：EP2559245A1
公开(公告)日：2013-02-20
申请号：EP11714644.9
申请日：2011-04-08
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KIRCHHOFFER, Heiner , WINKEN, Martin , HELLE, Philipp , MARPE, Detlev , SCHWARZ, Heiko , WIEGAND, Thomas
IPC分类号： H04N7/26 , G06T9/40 , H04N7/50 , H04N7/36 , H04N7/34
CPC分类号： H04N19/96 , H04N19/17 , H04N19/176 , H04N19/1883 , H04N19/46 , H04N19/52 , H04N19/53 , H04N19/59 , H04N19/593 , H04N19/61
摘要： Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative embodiments relate to picture and/or video coding applications.

7. 发明公开

EP2279622A1 BIT-DEPTH SCALABILITY 有权转让
标题翻译：位深度可扩展性
公开(公告)号：EP2279622A1
公开(公告)日：2011-02-02
申请号：EP08735287.8
申请日：2008-04-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： WIEGAND, Thomas , WINKEN, Martin
IPC分类号： H04N7/26
CPC分类号： H04N19/593 , H04N19/117 , H04N19/184 , H04N19/33 , H04N19/36 , H04N19/80 , H04N19/82
摘要： To increase efficiency of a bit-depth scalable data-stream an inter-layer prediction is obtained by mapping samples of the representation of the picture or video source data with a first picture sample bit-depth from a first dynamic range corresponding to the first picture sample bit-depth to a second dynamic range greater than the first dynamic range and corresponding to a second picture sample bit-depth being higher than the first picture sample bit-depth by use of one or more global mapping functions being constant within the picture or video source data or varying at a first granularity, and a local mapping function locally modifying the one or more global mapping functions and varying at a second granularity smaller than the first granularity, with forming the quality-scalable data-stream based on the local mapping function such that the local mapping function is derivable from the quality-scalable data-stream.
摘要翻译：为了提高比特深度可缩放数据流的效率，通过将图片或视频源数据的表示的样本与来自对应于第一图片的第一动态范围的第一图片样本比特深度进行映射来获得层间预测将比特深度采样到大于第一动态范围的第二动态范围，并且通过使用在图片内恒定的一个或多个全局映射函数来对应于高于第一图片采样比特深度的第二图片采样比特深度;或者视频源数据或以第一粒度变化;以及局部映射功能，局部修改所述一个或多个全局映射函数并且以小于所述第一粒度的第二粒度变化，其中基于所述局部映射形成所述质量可缩放数据流功能，使得本地映射功能可从质量可伸缩的数据流中导出。

8. 发明公开

EP2143279A1 SCALABLE VIDEO CODING SUPPORTING PIXEL VALUE REFINEMENT SCALABILITY 有权
标题翻译：可扩展的视频编码支持像素值精化可扩展性
公开(公告)号：EP2143279A1
公开(公告)日：2010-01-13
申请号：EP07764969.7
申请日：2007-06-29
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： WIEGAND, Thomas , WINKEN, Martin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/59 , H04N19/30 , H04N19/33 , H04N19/61
摘要： A more efficient way of enabling scalability in terms of pixel value resolution is achieved by temporally predicting (126, 142) a first and a second representation of a video material separately to each other with the first representation being of a lower pixel value resolution than the second representation, with mapping the first prediction residual or a reconstructed version thereof from the first pixel value resolution to the second pixel value resolution dependent on the second prediction signal obtained from temporally predicting the second representation, and by coding (132, 134, 144) a second prediction residual being of the second pixel value resolution as representing a deviation between a combination of the second and third prediction signals and the second representation.
摘要翻译：在像素值分辨率方面实现可缩放性的更有效的方式是通过临时预测（126,142）彼此分离的视频材料的第一和第二表示来实现的，其中第一表示的像素值分辨率低于第二表示，其中根据从时间上预测第二表示获得的第二预测信号，将第一预测残差或其重建版本从第一像素值分辨率映射到第二像素值分辨率，并且通过编码（132,134,144）作为第二像素值分辨率的第二预测残差表示第二和第三预测信号的组合与第二表示之间的偏差。

9. 发明公开

EP4376407A1 CODING OF INTRA-PREDICTION MODES 审中-实审
公开(公告)号：EP4376407A1
公开(公告)日：2024-05-29
申请号：EP23211632.7
申请日：2020-06-10
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： PFAFF, Jonathan , HINZ, Tobias , HELLE, Philipp , MERKLE, Philipp , STALLENBERGER, Björn , SCHÄFER, Michael , BROSS, Benjamin , WINKEN, Martin , SIEKMANN, Mischa , SCHWARZ, Heiko , MARPE, Detlev , WIEGAND, Thomas
IPC分类号： H04N19/11 , H04N19/147 , H04N19/176 , H04N19/463 , H04N19/70
CPC分类号： H04N19/11 , H04N19/147 , H04N19/176 , H04N19/463 , H04N19/70
摘要： There are disclosed techniques for block-based predicting a block of a picture efficiently, like an apparatus (3000) for decoding a predetermined block (18) of a picture (10) using intra-prediction, configured to derive a set-selective syntax element (522) from the data stream (12) which indicates whether the predetermined block (18) is to be predicted using one of a first set (508) of intra-prediction modes comprising a DC intra prediction mode (506) and angular prediction modes (500). If the set-selective syntax element (522) indicates that the predetermined block (18) is to be predicted using one of the first set (508) of intra-prediction modes, the apparatus is configured to form a list (528) of most probable intra-prediction modes on the basis of intra-prediction modes (3050) using which neighbouring blocks (524, 526) neighbouring the predetermined block (18) are predicted, derive a MPM list index (534) from the data stream (12) which points into the list (528) of most probable intra-prediction modes onto a predetermined intra-prediction mode (3100) and intra-predict the predetermined block (18) using the predetermined intra-prediction mode (3100). If the set-selective syntax element (522) indicates that the predetermined block (18) is not to be predicted using one of the first set (508) of intra-prediction modes, the apparatus is configured to derive a further index (540; 546) from the data stream (12) which indicates a predetermined matrix-based intra-prediction mode (3200) out of a second set (520) of matrix-based intra-prediction modes (510), compute a matrix-vector product (512) between a vector (514, 400, 402) derived from reference samples (17) in a neighbourhood of the predetermined block (18) and a predetermined prediction matrix (516) associated with the predetermined matrix-based intra-prediction mode (3200) so as to obtain a prediction vector (518), and predict samples of the predetermined block (18) on the basis of the prediction vector (518). The list (528) of most probable intra-prediction modes is formed on the basis of intra-prediction modes (3050) using which neighbouring blocks (524, 526) neighbouring the predetermined block (18) are predicted such that the list (528) of most probable intra-prediction modes is free of the DC intra prediction mode (506) in case of the neighbouring blocks (524, 526) being predicted by any of the angular intra prediction modes (500).

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