公开(公告)号：US10771794B2

公开(公告)日：2020-09-08

申请号：US16720054

申请日：2019-12-19

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 ,  H04N19/103 ,  H04N19/157 ,  H04N19/82 ,  H04N19/44 ,  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：US10694183B2

公开(公告)日：2020-06-23

申请号：US16142195

申请日：2018-09-26

Applicant: GE Video Compression, LLC

Inventor： 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: H04N19/103 ,  H04N19/30 ,  H04N19/50 ,  H04N19/119 ,  H04N19/105 ,  H04N19/117 ,  H04N19/157 ,  H04N19/187 ,  H04N19/82 ,  H04N19/136 ,  H04N19/159 ,  H04N19/33 ,  H04N19/587 ,  H04N19/59 ,  H04N19/18 ,  H04N19/48 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86 ,  H04N19/107 ,  H04N19/137 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  H04N19/593 ,  H04N19/615 ,  H04N19/11 ,  H04N19/463

Abstract: Scalable video coding is rendered more efficient by deriving/selecting a subblock subdivision to be used for enhancement layer prediction, among a set of possible subblock subdivisions of an enhancement layer block by evaluating the spatial variation of the base layer coding parameters over the base layer signal. By this measure, less of the signalization overhead has to be spent on signaling this subblock subdivision within the enhancement layer data stream, if any. The subblock subdivision thus selected may be used in predictively coding/decoding the enhancement layer signal.

公开(公告)号：US10694182B2

公开(公告)日：2020-06-23

申请号：US14673908

申请日：2015-03-31

Applicant: GE Video Compression, LLC.

Inventor： 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: H04N19/103 ,  H04N19/30 ,  H04N19/50 ,  H04N19/119 ,  H04N19/105 ,  H04N19/117 ,  H04N19/157 ,  H04N19/187 ,  H04N19/82 ,  H04N19/33 ,  H04N19/587 ,  H04N19/59 ,  H04N19/18 ,  H04N19/48 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86 ,  H04N19/107 ,  H04N19/137 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  H04N19/593 ,  H04N19/615 ,  H04N19/11 ,  H04N19/463

Abstract: 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.

公开(公告)号：US10542278B2

公开(公告)日：2020-01-21

申请号：US16397166

申请日：2019-04-29

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/51 ,  H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/196 ,  H04N19/96 ,  H04N19/593 ,  H04N19/157 ,  H04N19/82 ,  H04N19/52 ,  H04N19/14

Abstract: In accordance with a first aspect, the intra prediction direction of a neighboring, intra-predicted block is used in order to predict the extension direction of the wedgelet separation line of a current block, thereby reducing the side information rate necessitated in order to convey the partitioning information. In accordance with a second aspect, the idea is that previously reconstructed samples, i.e. reconstructed values of blocks preceding the current block in accordance with the coding/decoding order allow for at least a prediction of a correct placement of a starting point of the wedgelet separation line, namely by placing the starting point of the wedgelet separation line at a position of a maximum change between consecutive ones of a sequence of reconstructed values of samples of a line of samples extending adjacent to the current block along a circumference thereof. Both aspects may be used individually or in combination.

公开(公告)号：US09749651B2

公开(公告)日：2017-08-29

申请号：US14273600

申请日：2014-05-09

Applicant: GE Video Compression, LLC

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

IPC: H04N7/12 ,  H04N19/51 ,  H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/196 ,  H04N19/96 ,  H04N19/593 ,  H04N19/157 ,  H04N19/82 ,  H04N19/52 ,  H04N19/14

CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/119 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/82 ,  H04N19/96

Abstract: In accordance with a first aspect, the intra prediction direction of a neighboring, intra-predicted block is used in order to predict the extension direction of the wedgelet separation line of a current block, thereby reducing the side information rate necessitated in order to convey the partitioning information. In accordance with a second aspect, the idea is that previously reconstructed samples, i.e. reconstructed values of blocks preceding the current block in accordance with the coding/decoding order allow for at least a prediction of a correct placement of a starting point of the wedgelet separation line, namely by placing the starting point of the wedgelet separation line at a position of a maximum change between consecutive ones of a sequence of reconstructed values of samples of a line of samples extending adjacent to the current block along a circumference thereof. Both aspects may be used individually or in combination.

公开(公告)号：US09749622B2

公开(公告)日：2017-08-29

申请号：US14273603

申请日：2014-05-09

Applicant: GE Video Compression, LLC

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

IPC: H04N7/12 ,  H04N19/126 ,  H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/196 ,  H04N19/96 ,  H04N19/593 ,  H04N19/157 ,  H04N19/82 ,  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.

公开(公告)号：US12137214B2

公开(公告)日：2024-11-05

申请号：US18297312

申请日：2023-04-07

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/124 ,  H04N19/157 ,  H04N19/167 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/82 ,  H04N19/96

Abstract: Wedgelet separation lines of neighboring blocks are predicted from each other by aligning the wedgelet separation lines of such neighboring blocks to each other, thereby reducing the side information coding rate that may be used.

公开(公告)号：US20230353726A1

公开(公告)日：2023-11-02

申请号：US18297312

申请日：2023-04-07

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/124 ,  H04N19/167 ,  H04N19/176 ,  H04N19/96 ,  H04N19/44 ,  H04N19/597 ,  H04N19/82 ,  H04N19/119 ,  H04N19/157 ,  H04N19/174 ,  H04N19/70 ,  H04N19/105 ,  H04N19/46 ,  H04N19/593

CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/124 ,  H04N19/157 ,  H04N19/167 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/82 ,  H04N19/96

Abstract: Wedgelet separation lines of neighboring blocks are predicted from each other by aligning the wedgelet separation lines of such neighboring blocks to each other, thereby reducing the side information coding rate that may be used.

公开(公告)号：US11589062B2

公开(公告)日：2023-02-21

申请号：US16867181

申请日：2020-05-05

Applicant: GE Video Compression, LLC

Inventor： 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: H04N19/117 ,  H04N19/33 ,  H04N19/105 ,  H04N19/157 ,  H04N19/187 ,  H04N19/82 ,  H04N19/136 ,  H04N19/159 ,  H04N19/34 ,  H04N19/119 ,  H04N19/587 ,  H04N19/59 ,  H04N19/18 ,  H04N19/48 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86 ,  H04N19/107 ,  H04N19/137 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  H04N19/593 ,  H04N19/615 ,  H04N19/11 ,  H04N19/463

Abstract: A subblock-based coding of transform coefficient blocks of the enhancement layer is rendered more efficient. To this end, the subblock subdivision of the respective transform coefficient block is controlled on the basis of the base layer residual signal or the base layer signal. In particular, by exploiting the respective base layer hint, the subblocks may be made longer along a spatial frequency axis transverse to edge extensions observable from the base layer residual signal or the base layer signal.

公开(公告)号：US10924748B2

公开(公告)日：2021-02-16

申请号：US17012506

申请日：2020-09-04

Applicant: GE VIDEO COMPRESSION, LLC

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

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