公开(公告)号：US20170302943A1

公开(公告)日：2017-10-19

申请号：US15639129

申请日：2017-06-30

Applicant: GE Video Compression, LLC

Inventor： Valeri GEORGE ,  Anastasia HENKEL ,  Heiner KIRCHHOFFER ,  Detlev MARPE ,  Thomas SCHIERL

IPC: H04N19/436 ,  H03M7/30 ,  H04N19/13 ,  H04N19/174 ,  H04N19/167 ,  H04N19/503 ,  H04N19/91 ,  H03M7/40

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

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：US20240373071A1

公开(公告)日：2024-11-07

申请号：US18660993

申请日：2024-05-10

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Karsten GRUENEBERG ,  Heiner KIRCHHOFFER ,  Anastasia HENKEL ,  Detlev MARPE

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

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 earlier, i.e. with 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 so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

公开(公告)号：US20230156203A1

公开(公告)日：2023-05-18

申请号：US18053446

申请日：2022-11-08

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 ,  H04N19/65 ,  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

Abstract: The signalization of the inter-layer dependencies between layers of a multi-layered data stream is described. A good compromise between a too intensive restriction of the potential diversity of inter-layer dependencies on the one hand and a too complex signaling of the inter-layer dependencies on the other hand has been found by describing the inter-layer dependencies by way of a first inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by a base layer-ID and a second inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by an extension layer-ID, the base layer ID and extension layer ID indexing the layers the portions of the multi-layer data stream are associated with. In accordance with this concept, emphasis may be shifted between increased diversity of the signalizable inter-layer dependencies on the one hand and reduced side-information overhead for signaling the inter-layer dependencies on the other hand.

公开(公告)号：US20230092331A1

公开(公告)日：2023-03-23

申请号：US17981969

申请日：2022-11-07

Applicant: GE Video Compression, LLC

Inventor： Yago SANCHEZ DE LA FUENTE ,  Karsten SÜHRING ,  Cornelius HELLGE ,  Thomas SCHIERL ,  Robert SKUPIN ,  Thomas WIEGAND

IPC: H04N19/169 ,  H04N19/184 ,  H04N19/172 ,  H04N19/44

Abstract: An apparatus (200) for receiving an input video data stream according to an embodiment is provided. The input video data stream has a video encoded thereinto. The apparatus (200) is configured to generate an output video data stream from the input video data stream.

公开(公告)号：US20210211701A1

公开(公告)日：2021-07-08

申请号：US17210026

申请日：2021-03-23

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Valeri GEORGE ,  Anastasia HENKEL ,  Heiner KIRCHHOFFER ,  Detlev MARPE ,  Thomas SCHIERL

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

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：US20210044835A1

公开(公告)日：2021-02-11

申请号：US17082385

申请日：2020-10-28

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Karsten GRUENEBERG ,  Heiner KIRCHHOFFER ,  Anastasia HENKEL ,  Detlev MARPE

IPC: H04N19/91 ,  H04N19/169 ,  H04N19/107 ,  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 earlier, i.e. with 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 so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

公开(公告)号：US20190342560A1

公开(公告)日：2019-11-07

申请号：US16514052

申请日：2019-07-17

Applicant: GE Video Compression, LLC

Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRÜNEBERG ,  Robert SKUPIN

IPC: H04N19/169 ,  H04N19/91 ,  H04N19/436 ,  H04N19/46 ,  H04N19/13 ,  H04N19/174 ,  H04N19/463 ,  H04N19/70

Abstract: Parallel processing concepts such as wavefront parallel processing, are realized with a reduced end-to-end delay by giving up the usual slice concept according to which slices are either coded/decoded completely independent from areas of the picture outside of the respective slice, or at least independent from areas outside the respective slice as far as the entropy coding is concerned, namely in favor of slices of different modes, namely ones called dependent slices which allow for interdependencies across slice boundaries, and others which do not, called normal slices, for example. Combined with the aspect or not, WPP processing concept is made more efficiently by using the slices' start syntax portions to locate WPP entry points.

公开(公告)号：US20190020883A1

公开(公告)日：2019-01-17

申请号：US16123184

申请日：2018-09-06

Applicant: GE Video Compression, LLC

Inventor： Karsten SUEHRING ,  Thomas SCHIERL ,  Valeri GEORGE ,  Detlev MARPE ,  Robert SKUPIN

IPC: H04N19/187 ,  H04N19/30 ,  H04N19/80 ,  H04N19/102 ,  H04N19/119 ,  H04N19/12 ,  H04N19/139 ,  H04N19/174

Abstract: Scalable coding concepts are described. One aspect improves parallel decoding of inter-dependent layers of a multi-layer video data stream by introducing a long-term syntax element structure for guaranteeing that during a predetermined time period the pictures of the dependent layer are subdivided so that borders of the spatial segments of the pictures of the second layer and the spatial segments of the first layer overlay. Another aspect concerns upsampling from base layer to enhancement layer. Another aspect introduces a long-term syntax element structure allowing the decoder to determine the inter-layer offset for a predetermined time period. Another aspect introduces a type indicator field changing a way a layer indicator field within the NAL unit headers is to be interpreted. Another aspect allows different codecs/standards to be used for the different layers. Another aspect concerns a syntax element structure which indicates the inter-layer offset in units of the base layer blocks.

公开(公告)号：US20180167640A1

公开(公告)日：2018-06-14

申请号：US15890820

申请日：2018-02-07

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Karsten GRUENEBERG ,  Heiner KIRCHHOFFER ,  Anastasia HENKEL ,  Detlev MARPE

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

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 earlier, i.e. with 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 so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

公开(公告)号：US20180084267A1

公开(公告)日：2018-03-22

申请号：US15824196

申请日：2017-11-28

Applicant: GE Video Compression, LLC

Inventor： Valeri GEORGE ,  Anastasia HENKEL ,  Heiner KIRCHHOFFER ,  Detlev MARPE ,  Thomas SCHIERL

IPC: H04N19/44 ,  H04N19/51 ,  H04N19/174 ,  H04N19/167

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

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.