公开(公告)号：US10887625B2

公开(公告)日：2021-01-05

申请号：US16223275

申请日：2018-12-18

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/65 ,  H04N19/91 ,  H04N19/107 ,  H04N19/169 ,  H04N19/436 ,  H04N19/13

Abstract: A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. Thereby, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these entities. However, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted with a lower delay, than the un-chopped original entities. According to another aspect combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

公开(公告)号：US10863208B2

公开(公告)日：2020-12-08

申请号：US16907724

申请日：2020-06-22

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/96 ,  H04N19/52 ,  H04N19/42 ,  H04N19/13 ,  H04N19/129 ,  H04N19/124 ,  H04N19/44 ,  H04N19/30 ,  H04N19/70 ,  H04N19/176 ,  H04N19/159 ,  H04N19/463 ,  H04N19/593 ,  H04N19/53 ,  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：US10855309B2

公开(公告)日：2020-12-01

申请号：US16836191

申请日：2020-03-31

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H03M7/00 ,  H03M7/46 ,  H03M7/40

Abstract: Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

公开(公告)号：US10819984B2

公开(公告)日：2020-10-27

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：US10819982B2

公开(公告)日：2020-10-27

申请号：US16693886

申请日：2019-11-25

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

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：US10812809B2

公开(公告)日：2020-10-20

申请号：US16686558

申请日：2019-11-18

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：US10805645B2

公开(公告)日：2020-10-13

申请号：US15413852

申请日：2017-01-24

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/96 ,  H04N19/17 ,  H04N19/52 ,  H04N19/169 ,  H04N19/46 ,  H04N19/176 ,  H04N19/61 ,  H04N19/53 ,  H04N19/59 ,  H04N19/593

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.

公开(公告)号：US10803485B2

公开(公告)日：2020-10-13

申请号：US16677083

申请日：2019-11-07

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

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：US10771800B2

公开(公告)日：2020-09-08

申请号：US16840043

申请日：2020-04-03

Applicant: GE VIDEO COMPRESSION, LLC

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

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

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：US10743030B2

公开(公告)日：2020-08-11

申请号：US16392785

申请日：2019-04-24

Applicant: GE VIDEO COMPRESSION, LLC

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

IPC: H04N19/68 ,  H04N19/167 ,  H04N19/174 ,  H04N19/18 ,  H04N19/423 ,  H04N19/436 ,  H04N19/46 ,  H04N19/55 ,  H04N19/67 ,  H04N19/70 ,  H04N19/91 ,  H04N21/2343 ,  H04N21/462 ,  H04N21/4728 ,  H04N19/169 ,  H04L12/66 ,  G06F15/173 ,  H04L12/54 ,  H04L12/833 ,  H04L12/801

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.