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公开(公告)号：US20180063523A1
公开(公告)日：2018-03-01
申请号：US15803310
申请日：2017-11-03
Applicant: GE Video Compression, LLC
Inventor： Detlev MARPE , Martin WINKEN , Heiko SCHWARZ , Thomas WIEGAND
IPC: H04N19/102 , H04N19/61 , H04N19/50 , H04N19/36 , H04N19/117 , H04N19/187 , H04N19/186 , H04N19/184 , H04N19/30
CPC classification number: H04N19/102 , H04N19/117 , H04N19/184 , H04N19/186 , H04N19/187 , H04N19/30 , H04N19/36 , H04N19/50 , H04N19/61
Abstract: A more efficient way of addressing different bit-depths, or different bit-depths and chroma sampling format requirements is achieved by using a low bit-depth and/or low-chroma resolution representation for providing a respective base layer data stream representing this low bit-depth and/or low-chroma resolution representation as well as for providing a higher bit-depth and/or higher chroma resolution representation so that a respective prediction residual may be encoded in order to obtain a higher bit-depth and/or higher chroma resolution representation. By this measure, an encoder is enabled to store a base-quality representation of a picture or a video sequence, which can be decoded by any legacy decoder or video decoder, together with an enhancement signal for higher bit-depth and/or reduced chroma sub-sampling, which may be ignored by legacy decoders or video decoders.
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公开(公告)号：US20170332088A1
公开(公告)日：2017-11-16
申请号：US15663256
申请日：2017-07-28
Applicant: GE VIDEO COMPRESSION, LLC
Inventor： Philipp MERKLE , Christian BARTNIK , Haricharan LAKSHMAN , Detlev MARPE , Karsten MUELLER , Thomas WIEGAND , Gerhard TECH
IPC: H04N19/23 , H04N19/82 , H04N19/70 , H04N19/597 , H04N19/593 , H04N19/46 , H04N19/103 , H04N19/196 , H04N19/176 , H04N19/157 , H04N19/44 , H04N19/119 , H04N19/105 , H04N19/96 , H04N19/14
CPC classification number: H04N19/176 , H04N19/103 , H04N19/105 , H04N19/119 , H04N19/14 , H04N19/157 , H04N19/196 , H04N19/23 , H04N19/44 , H04N19/46 , H04N19/593 , H04N19/597 , H04N19/70 , H04N19/82 , H04N19/96
Abstract: 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：US20170318299A1
公开(公告)日：2017-11-02
申请号：US15655329
申请日：2017-07-20
Applicant: GE VIDEO COMPRESSION, LLC
Inventor： Philipp MERKLE , Christian BARTNIK , Haricharan LAKSHMAN , Detlev MARPE , Karsten MUELLER , Thomas WIEGAND , Gerhard TECH
IPC: H04N19/176 , H04N19/82 , H04N19/70 , H04N19/597 , H04N19/593 , H04N19/196 , H04N19/157 , H04N19/46 , H04N19/126 , H04N19/119 , H04N19/96 , H04N19/105 , H04N19/14
CPC classification number: H04N19/176 , H04N19/105 , H04N19/119 , H04N19/126 , H04N19/14 , H04N19/157 , H04N19/196 , H04N19/46 , H04N19/593 , H04N19/597 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/96
Abstract: The way of predicting a current block by assigning constant partition values to the partitions of a bi-partitioning of a block is quite effective, especially in case of coding sample arrays such as depth/disparity maps where the content of these sample arrays is mostly composed of plateaus or simple connected regions of similar value separated from each other by steep edges. The transmission of such constant partition values would, however, still need a considerable amount of side information which should be avoided. This side information rate may be further reduced if mean values of values of neighboring samples associated or adjoining the respective partitions are used as predictors for the constant partition values.
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公开(公告)号：US20170250709A1
公开(公告)日：2017-08-31
申请号：US15595097
申请日：2017-05-15
Applicant: GE Video Compression, LLC
Inventor： Valeri GEORGE , Benjamin BROSS , Heiner KIRCHHOFFER , Detlev MARPE , Tung NGUYEN , Matthias PREISS , Mischa SIEKMANN , Jan STEGEMANN , Thomas WIEGAND
IPC: H03M7/42 , H04N19/13 , H04N19/132 , H04N19/91 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/124 , H04N19/50
CPC classification number: H04N19/13 , H03M7/42 , H04N19/124 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: A decoder includes an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initialization value.
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公开(公告)号：US20170142416A1
公开(公告)日：2017-05-18
申请号：US15419006
申请日：2017-01-30
Applicant: GE Video Compression, LLC
Inventor： Valeri GEORGE , Benjamin BROSS , Heiner KIRCHHOFFER , Detlev MARPE , Tung NGUYEN , Matthias PREISS , Mischa SIEKMANN , Jan STEGEMANN , Thomas WIEGAND
IPC: H04N19/13 , H04N19/52 , H04N19/132 , H04N19/61 , H04N19/91 , H04N19/124 , H04N19/70
CPC classification number: H04N19/13 , H03M7/42 , H04N19/124 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences. A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences.
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Patent Agency Ranking
公开(公告)号：US20160366448A1
公开(公告)日：2016-12-15
申请号：US15195407
申请日：2016-06-28
Applicant: GE VIDEO COMPRESSION, LLC
Inventor： Heiner KIRCHHOFFER , Martin WINKEN , Philipp HELLE , Detlev MARPE , Heiko SCHWARZ , Thomas WIEGAND
CPC classification number: H04N19/96 , H04N19/17 , H04N19/176 , H04N19/1883 , H04N19/46 , H04N19/52 , H04N19/53 , H04N19/59 , H04N19/593 , H04N19/61
Abstract: 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.
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公开(公告)号：US20160360204A1
公开(公告)日：2016-12-08
申请号：US15238294
申请日：2016-08-16
Applicant: GE Video Compression, LLC
Inventor： Valeri GEORGE , Benjamin BROSS , Heiner KIRCHHOFFER , Detlev MARPE , Tung NGUYEN , Matthias PREISS , Mischa SIEKMANN , Jan STEGEMANN , Thomas WIEGAND
CPC classification number: H04N19/13 , H03M7/42 , H04N19/124 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences. A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences.
Abstract translation: 熵解码器被配置为，对于运动矢量差的水平和垂直分量，使用上下文自适应二进制熵解码从所述数据流中导出截断的一元代码，其中精确地一个上下文每一个截断的一元代码的每个仓位，其对于 运动矢量差的水平和垂直分量，以及使用恒定等概率旁路模式的Exp-Golomb码，以获得运动矢量差异的二值化。 配音器被配置为对运动矢量差分语法元素的二值化进行二值化，以获得运动矢量差的水平和垂直分量的整数值。 重构器被配置为基于运动矢量差的水平和垂直分量的整数值来重建视频。
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公开(公告)号：US20160309200A1
公开(公告)日：2016-10-20
申请号：US15197406
申请日：2016-06-29
Applicant: GE VIDEO COMPRESSION, LLC
Inventor： Philipp HELLE , Detlev MARPE , Simon OUDIN , Thomas WIEGAND
IPC: H04N19/96 , H04N19/463 , H04N19/30 , H04N19/593 , H04N19/70 , H04N19/44 , H04N19/53 , H04N19/52
CPC classification number: 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
Abstract: 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：US20150288959A1
公开(公告)日：2015-10-08
申请号：US14743094
申请日：2015-06-18
Applicant: GE Video Compression, LLC
Inventor： Thomas WIEGAND , Karsten MUELLER , Philipp MERKLE
IPC: H04N19/105 , H04N19/11 , H04N19/172 , H04N19/61 , H04N19/46 , H04N19/513 , H04N19/567 , H04N19/597 , H04N13/00 , H04N19/177
CPC classification number: H04N19/597 , H04N13/111 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/124 , H04N19/17 , H04N19/172 , H04N19/177 , H04N19/30 , H04N19/46 , H04N19/513 , H04N19/521 , H04N19/567 , H04N19/61 , H04N19/80 , H04N2013/0081
Abstract: Hybrid video decoder supporting intermediate view synthesis of an intermediate view video from a first- and a second-view video which are predictively coded into a multi-view data signal with frames of the second-view video being spatially subdivided into sub-regions and the multi-view data signal having a prediction mode is provided, having: an extractor configured to respectively extract, from the multi-view data signal, for sub-regions of the frames of the second-view video, a disparity vector and a prediction residual; a predictive reconstructor configured to reconstruct the sub-regions of the frames of the second-view video, by generating a prediction from a reconstructed version of a portion of frames of the first-view video using the disparity vectors and a prediction residual for the respective sub-regions; and an intermediate view synthesizer configured to reconstruct first portions of the intermediate view video.
Abstract translation: 混合视频解码器支持来自第一和第二视点视频的中间视图合成的中间视图合成，其被预测编码为多视图数据信号，其中第二视点视频的帧被空间细分为子区域，并且 提供具有预测模式的多视点数据信号，具有：提取器，被配置为分别从多视点数据信号提取第二视点视频的帧的子区域，视差矢量和预测残差 ; 预测重建器，被配置为通过使用所述视差矢量从所述第一视频视频的一部分帧的重构版本生成预测，以及针对所述视差矢量的预测残差来重构所述二维视频的帧的子区域 子区域 以及中间视图合成器，被配置为重建中间视图视频的第一部分。
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公开(公告)号：US20240179340A1
公开(公告)日：2024-05-30
申请号：US18392158
申请日：2023-12-21
Applicant: GE VIDEO COMPRESSION, LLC
Inventor： Sebastian BOSSE , Heiko SCHWARZ , Thomas WIEGAND , Tobias HINZ
IPC: H04N19/52 , H04N19/463 , H04N19/553 , H04N19/597
CPC classification number: H04N19/52 , H04N19/463 , H04N19/553 , H04N19/597
Abstract: A proposed intermediate way of handling the renderable portion of the first view results in more efficient coding. Instead of omitting the coding of the renderable portion completely, even more efficient coding of multi-view signals entails merely suppressing the coding of the residual signal within the renderable portion, whereas the prediction parameter coding still takes place from the non-renderable portion of the multi-view signal across the renderable portion so that prediction parameters for the renderable portion may be exploited for predicting parameters for the non-renderable portion. The additional coding rate for transmitting the prediction parameters for the renderable portion may be kept low as this merely aims at forming a continuation of the parameter history across the renderable portion to serve as a basis for prediction parameters of other portions of the multi-view signal.
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