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公开(公告)号：US12010353B2
公开(公告)日：2024-06-11
申请号：US18449157
申请日：2023-08-14
发明人： Philipp Helle , Detlev Marpe , Simon Oudin , Thomas Wiegand
IPC分类号： H04N19/96 , H04N19/124 , H04N19/129 , H04N19/13 , H04N19/136 , H04N19/159 , H04N19/176 , H04N19/30 , H04N19/42 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/513 , H04N19/52 , H04N19/53 , H04N19/593 , H04N19/70
CPC分类号： H04N19/96 , H04N19/124 , H04N19/129 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/30 , H04N19/439 , H04N19/44 , H04N19/463 , H04N19/513 , H04N19/52 , H04N19/53 , H04N19/593 , H04N19/70 , H04N19/136 , H04N19/46
摘要： A better compromise between encoding complexity and achievable rate distortion ratio, and/or to achieve a better rate distortion ratio is achieved by using multitree sub-divisioning not only in order to subdivide a continuous area, namely the sample array, into leaf regions, but using the intermediate regions also to share coding parameters among the corresponding collocated leaf blocks. By this measure, coding procedures performed in tiles—leaf regions—locally, may be associated with coding parameters individually without having to, however, explicitly transmit the whole coding parameters for each leaf region separately. Rather, similarities may effectively exploited by using the multitree subdivision.
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公开(公告)号：US12010334B2
公开(公告)日：2024-06-11
申请号：US16850588
申请日：2020-04-16
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
IPC分类号： H04N19/30 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/187 , H04N19/196 , H04N19/33 , H04N19/34 , H04N19/48 , H04N19/503 , H04N19/587 , H04N19/59 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/70 , H04N19/82 , H04N19/86 , H04N19/11 , H04N19/463
CPC分类号： H04N19/33 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/187 , H04N19/198 , H04N19/34 , H04N19/48 , H04N19/503 , H04N19/587 , H04N19/59 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/70 , H04N19/82 , H04N19/865 , H04N19/11 , H04N19/463
摘要： Information available from coding/decoding the base layer, i.e. base-layer hints, is exploited to render the motion-compensated prediction of the enhancement layer more efficient by more efficiently coding the enhancement layer motion parameters.
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公开(公告)号：US11983737B2
公开(公告)日：2024-05-14
申请号：US18052520
申请日：2022-11-03
发明人： Philipp Helle , Simon Oudin , Martin Winken , Detlev Marpe , Thomas Wiegand
IPC分类号： G06Q30/0251 , G06F16/00 , G06Q10/00 , G06Q30/00 , G06Q30/02 , G06Q30/0601 , H04N19/105 , H04N19/119 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/52 , H04N19/61 , H04N19/96
CPC分类号： G06Q30/0251 , G06F16/00 , G06Q30/02 , G06Q30/0601 , H04N19/105 , H04N19/119 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/197 , H04N19/46 , H04N19/463 , H04N19/52 , H04N19/61 , H04N19/96 , G06Q10/00 , G06Q30/00
摘要： A favorable merging or grouping of simply connected regions into which the array of information samples is sub-divided, is coded with a reduced amount of data. To this end, a predetermined relative locational relationship is defined enabling an identifying, for a predetermined simply connected region, of simply connected regions within the plurality of simply connected regions which have the predetermined relative locational relationship to the predetermined simply connected region. Namely, if the number is zero, a merge indicator for the predetermined simply connected region may be absent within the data stream. In other embodiments, spatial sub-division is performed depending on a first subset of syntax elements, followed by combining spatially neighboring simply connected regions depending on a second subset of syntax elements, to obtain an intermediate sub-division.
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公开(公告)号：US11968348B2
公开(公告)日：2024-04-23
申请号：US17576873
申请日：2022-01-14
发明人： Heiko Schwarz , Thomas Wiegand
IPC分类号： H04N13/128 , H04N13/161 , H04N19/194 , H04N19/46 , H04N19/513 , H04N19/52 , H04N19/597 , H04N19/895
CPC分类号： H04N13/128 , H04N13/161 , H04N19/194 , H04N19/46 , H04N19/513 , H04N19/52 , H04N19/597 , H04N19/895 , H04N2213/003
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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公开(公告)号：US20240048708A1
公开(公告)日：2024-02-08
申请号：US18482683
申请日：2023-10-06
发明人： Valeri George , Benjamin Bross , Heiner Kirchhoffer , Detlev Marpe , Tung Nguyen , Matthias Preiss , Mischa Siekmann , Jan Stegemann , Thomas Wiegand , Christian Bartnik
IPC分类号： H04N19/13 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H03M7/42 , H04N19/52 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184
CPC分类号： H04N19/13 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H03M7/42 , H04N19/52 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184
摘要： A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated.
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公开(公告)号：US11863763B2
公开(公告)日：2024-01-02
申请号：US17170289
申请日：2021-02-08
发明人： Philipp Merkle , Christian Bartnik , Haricharan Lakshman , Detlev Marpe , Karsten Mueller , Thomas Wiegand , Gerhard Tech
IPC分类号： H04N19/176 , H04N19/597 , H04N19/105 , H04N19/70 , H04N19/119 , H04N19/46 , H04N19/196 , H04N19/96 , H04N19/593 , H04N19/103 , H04N19/157 , H04N19/82 , H04N19/44 , H04N19/23 , H04N19/14
CPC分类号： H04N19/176 , H04N19/103 , H04N19/105 , H04N19/119 , H04N19/157 , H04N19/196 , H04N19/23 , H04N19/44 , H04N19/46 , H04N19/593 , H04N19/597 , H04N19/70 , H04N19/82 , H04N19/96 , H04N19/14
摘要： Although wedgelet-based partitioning seems to represent a better tradeoff between side information rate on the one hand and achievable variety in partitioning possibilities on the other hand, compared to contour partitioning, the ability to alleviate the constraints of the partitioning to the extent that the partitions have to be wedgelet partitions, enables applying relatively uncomplex statistical analysis onto overlaid spatially sampled texture information in order to derive a good predictor for the bi-segmentation in a depth/disparity map. Thus, in accordance with a first aspect it is exactly the increase of the freedom which alleviates the signaling overhead provided that co-located texture information in form of a picture is present. Another aspect pertains the possibility to save side information rate involved with signaling a respective coding mode supporting irregular partitioning.
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公开(公告)号：US11856240B1
公开(公告)日：2023-12-26
申请号：US18052718
申请日：2022-11-04
发明人： Heiner Kirchhoffer , Martin Winken , Philipp Helle , Detlev Marpe , Heiko Schwarz , Thomas Wiegand
IPC分类号： H04N19/96 , H04N19/52 , H04N19/46 , H04N19/53 , H04N19/17 , H04N19/59 , H04N19/593 , H04N19/169 , H04N19/61 , H04N19/176
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 a picture and/or video coding applications.
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公开(公告)号：US11765362B2
公开(公告)日：2023-09-19
申请号：US17065934
申请日：2020-10-08
IPC分类号： H04N19/159 , H04N19/597 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/147 , H04N19/46 , H04N19/196 , H04N19/61 , H04N19/96 , H04N19/103 , H04N19/463 , H04N19/186
CPC分类号： H04N19/159 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/597 , H04N19/61 , H04N19/70 , H04N19/96
摘要： A better rate distortion ratio is achieved by making interrelationships between coding parameters of different planes available for exploitation for the aim of redundancy reduction despite the additional overhead resulting from the need to signal the inter-plane prediction information to the decoder. In particular, the decision to use inter plane prediction or not may be performed for a plurality of planes individually. Additionally or alternatively, the decision may be done on a block basis considering one secondary plane.
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公开(公告)号：US11721103B2
公开(公告)日：2023-08-08
申请号：US17840269
申请日：2022-06-14
发明人： Robert Skupin , Cornelius Hellge , Benjamin Bross , Thomas Schierl , Yago Sánchez De La Fuente , Karsten Suehring , Thomas Wiegand
摘要： A concept for a video data stream extraction is presented which is more efficient namely which is, for example, able to more efficiently deal with video content of a type unknown to the recipient with videos of different type differing, for instance, in view-port-to-picture-plane projection, etc., or which lessens the extraction process complexity. Further, a concept is described using which a juxtaposition of different versions of a video scene, the versions differing in scene resolution, may be provided more efficiently to a recipient.
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公开(公告)号：US11611761B2
公开(公告)日：2023-03-21
申请号：US16987854
申请日：2020-08-07
IPC分类号： H04N19/159 , H04N19/597 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/147 , H04N19/46 , H04N19/196 , H04N19/61 , H04N19/96 , H04N19/103 , H04N19/463 , H04N19/186
摘要： A better rate distortion ratio is achieved by making interrelationships between coding parameters of different planes available for exploitation for the aim of redundancy reduction despite the additional overhead resulting from the need to signal the inter-plane prediction information to the decoder. In particular, the decision to use inter plane prediction or not may be performed for a plurality of planes individually. Additionally or alternatively, the decision may be done on a block basis considering one secondary plane.
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