公开(公告)号：US10574998B2

公开(公告)日：2020-02-25

申请号：US16197154

申请日：2018-11-20

Applicant: GE Video Compression, LLC

Inventor： Martin Winken ,  Heiner Kirchhoffer ,  Heiko Schwarz ,  Detlev Marpe ,  Thomas Wiegand

IPC: 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

Abstract: 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.

公开(公告)号：US10567776B2

公开(公告)日：2020-02-18

申请号：US16437185

申请日：2019-06-11

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Merkle ,  Christian Bartnik ,  Haricharan Lakshman ,  Detlev Marpe ,  Karsten Mueller ,  Thomas Wiegand ,  Gerhard Tech

IPC: H04N19/176 ,  H04N19/44 ,  H04N19/82 ,  H04N19/157 ,  H04N19/593 ,  H04N19/103 ,  H04N19/597 ,  H04N19/96 ,  H04N19/196 ,  H04N19/46 ,  H04N19/119 ,  H04N19/70 ,  H04N19/105 ,  H04N19/23 ,  H04N19/14

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.

公开(公告)号：US10542263B2

公开(公告)日：2020-01-21

申请号：US16385602

申请日：2019-04-16

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Merkle ,  Christian Bartnik ,  Haricharan Lakshman ,  Detlev Marpe ,  Karsten Mueller ,  Thomas Wiegand ,  Gerhard Tech

IPC: H04N19/176 ,  H04N19/597 ,  H04N19/105 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/196 ,  H04N19/96 ,  H04N19/593 ,  H04N19/157 ,  H04N19/82 ,  H04N19/126 ,  H04N19/61 ,  H04N19/14

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.

公开(公告)号：US10477182B2

公开(公告)日：2019-11-12

申请号：US16120731

申请日：2018-09-04

Applicant: GE Video Compression, LLC

Inventor： Heiko Schwarz ,  Thomas Wiegand

IPC: H04N13/161 ,  H04N13/128 ,  H04N19/597 ,  H04N19/52 ,  H04N19/46 ,  H04N19/194 ,  H04N19/513 ,  H04N19/895

Abstract: This disclosure is directed to coding a multi-view signal, which includes processing a list of plurality of motion vector candidates associated with a coding block of a current picture in a dependent view of the multi-view signal. Such processing includes estimating a first motion vector based on a second motion vector associated with a reference block in a current picture of a reference view of the multi-view signal, the reference block corresponding to the coding block of the current picture in the dependent view. The first motion vector is added into the list, and an index is used that specifies at least one candidate from the list to be used for motion-compensated prediction. The coding block in the current picture is coded by performing the motion-compensated prediction based on the at least one candidate indicated by the index.

公开(公告)号：US10448060B2

公开(公告)日：2019-10-15

申请号：US16017453

申请日：2018-06-25

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Helle ,  Detlev Marpe ,  Simon Oudin ,  Thomas Wiegand

IPC: H04N19/96 ,  H04N19/52 ,  H04N19/53 ,  H04N19/593 ,  H04N19/463 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/30 ,  H04N19/44 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/42 ,  H04N19/513

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.

公开(公告)号：US10440400B2

公开(公告)日：2019-10-08

申请号：US15707467

申请日：2017-09-18

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Helle ,  Detlev Marpe ,  Simon Oudin ,  Thomas Wiegand

IPC: H04N19/96 ,  H04N19/52 ,  H04N19/53 ,  H04N19/593 ,  H04N19/463 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/30 ,  H04N19/44 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/42 ,  H04N19/513

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.

公开(公告)号：US10440364B2

公开(公告)日：2019-10-08

申请号：US15918105

申请日：2018-03-12

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: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H03M7/42 ,  H04N19/52 ,  H04N19/50 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H04N19/513 ,  H04N19/91 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184

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.

公开(公告)号：US10432980B2

公开(公告)日：2019-10-01

申请号：US16033345

申请日：2018-07-12

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Helle ,  Detlev Marpe ,  Simon Oudin ,  Thomas Wiegand

IPC: H04N19/96 ,  H04N19/42 ,  H04N19/129 ,  H04N19/593 ,  H04N19/30 ,  H04N19/52 ,  H04N19/44 ,  H04N19/463 ,  H04N19/124 ,  H04N19/53 ,  H04N19/70 ,  H04N19/513 ,  H04N19/159 ,  H04N19/176 ,  H04N19/13

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.

公开(公告)号：US10382787B2

公开(公告)日：2019-08-13

申请号：US15820687

申请日：2017-11-22

Applicant: GE Video Compression, LLC

Inventor： Thomas Wiegand ,  Karsten Mueller ,  Philipp Merkle

IPC: H04N19/30 ,  H04N19/597 ,  H04N13/111 ,  H04N19/105 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/11 ,  H04N19/109 ,  H04N19/17 ,  H04N19/172 ,  H04N19/177 ,  H04N19/567 ,  H04N19/124 ,  H04N19/80 ,  H04N13/00

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.

公开(公告)号：US10334255B2

公开(公告)日：2019-06-25

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: H04N19/14 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/96 ,  H04N19/105 ,  H04N19/119 ,  H04N19/126 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/597

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.