公开(公告)号：US20160309188A1

公开(公告)日：2016-10-20

申请号：US15195504

申请日：2016-06-28

Applicant: GE Video Compression, LLC

Inventor： Heiner Kirchhoffer ,  Heiko Schwarz ,  Tung Nguyen ,  Detlev Marpe ,  Thomas Wiegand

IPC: H04N19/61 ,  H04N19/51 ,  H04N19/59 ,  H04N19/70 ,  H04N19/124 ,  H04N19/18 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/139

CPC classification number: H04N19/18 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50 ,  H04N19/51 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.

公开(公告)号：US12137242B2

公开(公告)日：2024-11-05

申请号：US18363057

申请日：2023-08-01

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Heiko Schwarz ,  Heiner Kirchhoffer ,  Philipp Helle ,  Simon Oudin ,  Jan Stegemann ,  Benjamin Bross ,  Detlev Marpe ,  Thomas Wiegand

IPC: H04N19/50 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52 ,  H04N19/70

Abstract: A coding efficiency increase is achieved by using a common signalization within the bitstream with regard to activation of merging and activation of the skip mode. One possible state of one or more syntax elements within the bitstream may signalize for a current sample set of a picture that the sample set is to be merged and has no prediction residual encoded and inserted into the bitstream. A common flag may signalize whether the coding parameters associated with a current sample set are to be set according to a merge candidate or to be retrieved from the bitstream, and whether the current sample set of the picture is to be reconstructed based on a prediction signal depending on the coding parameters associated with the current sample set, without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream.

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：US11956472B2

公开(公告)日：2024-04-09

申请号：US18359791

申请日：2023-07-26

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Thomas Schierl ,  Valeri George ,  Anastasia Henkel ,  Detlev Marpe ,  Karsten Grueneberg ,  Robert Skupin

IPC: H04N19/44 ,  H04N19/167 ,  H04N19/169 ,  H04N19/174 ,  H04N19/423 ,  H04N19/436 ,  H04N19/46 ,  H04N19/55 ,  H04N19/67 ,  H04N19/68 ,  H04N19/70 ,  H04N19/91 ,  H04N21/2343 ,  H04N21/462 ,  H04N21/4728 ,  G06F15/173 ,  H04L12/54 ,  H04L12/66 ,  H04L47/10 ,  H04L47/31

CPC classification number: H04N19/68 ,  H04N19/167 ,  H04N19/174 ,  H04N19/188 ,  H04N19/423 ,  H04N19/436 ,  H04N19/46 ,  H04N19/55 ,  H04N19/67 ,  H04N19/70 ,  H04N19/91 ,  H04N21/234327 ,  H04N21/4621 ,  H04N21/4728 ,  G06F15/173 ,  H04L12/56 ,  H04L12/66 ,  H04L47/10 ,  H04L47/31

Abstract: Decoder retrieval timing information, ROI information and tile identification information are conveyed within a video data stream at a level which allows for an easy access by network entities such as MANEs or decoder. In order to reach such a level, information of such types are conveyed within a video data stream by way of packets interspersed into packets of access units of a video data stream. In accordance with an embodiment, the interspersed packets are of a removable packet type, i.e. the removal of these interspersed packets maintains the decoder's ability to completely recover the video content conveyed via the video data stream.

公开(公告)号：US11949897B2

公开(公告)日：2024-04-02

申请号：US18160689

申请日：2023-01-27

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Valeri George ,  Anastasia Henkel ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Thomas Schierl

IPC: H04N11/02 ,  H03M7/30 ,  H04N19/13 ,  H04N19/167 ,  H04N19/174 ,  H04N19/436 ,  H04N19/44 ,  H04N19/503 ,  H04N19/51 ,  H04N19/91 ,  H03M7/40

CPC classification number: H04N19/44 ,  H03M7/3071 ,  H04N19/13 ,  H04N19/167 ,  H04N19/174 ,  H04N19/436 ,  H04N19/503 ,  H04N19/51 ,  H04N19/91 ,  H03M7/4037

Abstract: The entropy coding of a current part of a predetermined entropy slice is based on, not only, the respective probability estimations of the predetermined entropy slice as adapted using the previously coded part of the predetermined entropy slice, but also probability estimations as used in the entropy coding of a spatially neighboring, in entropy slice order preceding entropy slice at a neighboring part thereof. Thereby, the probability estimations used in entropy coding are adapted to the actual symbol statistics more closely, thereby lowering the coding efficiency decrease normally caused by lower-delay concepts. Temporal interrelationships are exploited additionally or alternatively.

公开(公告)号：US11900415B2

公开(公告)日：2024-02-13

申请号：US17020622

申请日：2020-09-14

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: G06Q30/02 ,  G06F16/00 ,  H04N19/105 ,  H04N19/147 ,  H04N19/196 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/96 ,  H04N19/463 ,  H04N19/14 ,  H04N19/186 ,  G06Q30/06 ,  G06Q10/00 ,  G06Q30/00 ,  G06Q30/0251 ,  G06Q30/0601

CPC classification number: 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

Abstract: 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.

公开(公告)号：US20240007657A1

公开(公告)日：2024-01-04

申请号：US18190955

申请日：2023-03-27

Applicant: GE Video Compression, LLC

Inventor： Karsten Suehring ,  Thomas Schierl ,  Detlev Marpe ,  Robert Skupin ,  Yago Sanchez De La Fuente ,  Gerhard Tech

IPC: H04N19/30 ,  H04N19/65 ,  H04N19/70 ,  H04L69/324 ,  H04N19/187 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/85 ,  H04N19/119 ,  H04N19/166 ,  H04N19/174 ,  H04N19/593 ,  H04N19/66 ,  H04N19/89 ,  H04N19/91 ,  H04N19/33

CPC classification number: H04N19/30 ,  H04N19/33 ,  H04N19/70 ,  H04L69/324 ,  H04N19/187 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/85 ,  H04N19/119 ,  H04N19/166 ,  H04N19/174 ,  H04N19/593 ,  H04N19/66 ,  H04N19/89 ,  H04N19/91 ,  H04N19/65

Abstract: A signaling of at least one characteristic for layers of a multi-layered video signal such as, for example, for each layer the indication of dependent layers to which the respective layer directly relates via inter-layer prediction, or the signaling of the afore-mentioned second inter-dependency syntax structure, is described. A maximum syntax element is signaled within the multi-layered video signal to indicate a maximally used value of an extension layer-ID field of the packets of the multi-layered video signal, the scope of the maximum syntax element being, for example, a predetermined portion of the multi-layered video signal extending, for example, across several portions of the multi-layered video signal. Accordingly, it is feasible for devices such as decoders or network elements receiving the multi-layered video signal to gain, for a relatively large predetermined portion of the multi-layered video signal, knowledge about the actually consumed portion of the possible domain of possible values.

公开(公告)号：US11838511B2

公开(公告)日：2023-12-05

申请号：US17590596

申请日：2022-02-01

Applicant: GE Video Compression, LLC

Inventor： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand ,  Christian Bartnik

IPC: 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 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 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.

公开(公告)号：US11810019B2

公开(公告)日：2023-11-07

申请号：US18052491

申请日：2022-11-03

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: G06Q30/0251 ,  G06F16/00 ,  H04N19/105 ,  H04N19/147 ,  H04N19/196 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/96 ,  H04N19/463 ,  H04N19/14 ,  H04N19/186 ,  G06Q30/02 ,  G06Q30/0601 ,  G06Q10/00 ,  G06Q30/00

CPC classification number: 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

Abstract: 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.

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.