IL274657B2 - Encoding and decoding methods and corresponding devices - Google Patents

Encoding and decoding methods and corresponding devices

Info

Publication number
IL274657B2
IL274657B2 IL274657A IL27465720A IL274657B2 IL 274657 B2 IL274657 B2 IL 274657B2 IL 274657 A IL274657 A IL 274657A IL 27465720 A IL27465720 A IL 27465720A IL 274657 B2 IL274657 B2 IL 274657B2
Authority
IL
Israel
Prior art keywords
current
block
sub
transform coefficients
transform coefficient
Prior art date
Application number
IL274657A
Other languages
English (en)
Hebrew (he)
Other versions
IL274657B1 (en
IL274657A (en
Original Assignee
Interdigital Vc Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=60569848&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL274657(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Interdigital Vc Holdings Inc filed Critical Interdigital Vc Holdings Inc
Publication of IL274657A publication Critical patent/IL274657A/en
Publication of IL274657B1 publication Critical patent/IL274657B1/en
Publication of IL274657B2 publication Critical patent/IL274657B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/174—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
IL274657A 2017-11-23 2018-11-07 Encoding and decoding methods and corresponding devices IL274657B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17306628.3A EP3490253A1 (en) 2017-11-23 2017-11-23 Encoding and decoding methods and corresponding devices
PCT/US2018/059579 WO2019103845A1 (en) 2017-11-23 2018-11-07 Encoding and decoding methods and corresponding devices

Publications (3)

Publication Number Publication Date
IL274657A IL274657A (en) 2020-06-30
IL274657B1 IL274657B1 (en) 2023-12-01
IL274657B2 true IL274657B2 (en) 2024-04-01

Family

ID=60569848

Family Applications (1)

Application Number Title Priority Date Filing Date
IL274657A IL274657B2 (en) 2017-11-23 2018-11-07 Encoding and decoding methods and corresponding devices

Country Status (7)

Country Link
US (1) US11695962B2 (https=)
EP (2) EP3490253A1 (https=)
JP (1) JP7398368B2 (https=)
KR (2) KR102854715B1 (https=)
CN (2) CN111386702B (https=)
IL (1) IL274657B2 (https=)
WO (1) WO2019103845A1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11113846B2 (en) 2018-08-31 2021-09-07 Hulu, LLC Coefficient context modeling in video coding
CN117579818B (zh) * 2019-03-11 2025-04-01 北京达佳互联信息技术有限公司 用于视频编码的方法和计算设备
US11202100B2 (en) * 2019-03-11 2021-12-14 Qualcomm Incorporated Coefficient coding for transform skip mode
CN118540482A (zh) * 2019-04-26 2024-08-23 松下电器（美国）知识产权公司 编码装置、解码装置和非暂时性计算机可读介质
CN120639967A (zh) * 2019-08-08 2025-09-12 Lg 电子株式会社 基于变换的视频编译方法及其装置
CN115842916B (zh) * 2019-08-27 2025-02-07 杭州海康威视数字技术股份有限公司 解码方法、编码方法及装置
WO2021040486A1 (ko) * 2019-08-31 2021-03-04 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
CN116233468A (zh) * 2021-12-06 2023-06-06 腾讯科技（深圳）有限公司 点云解码方法、点云编码方法、装置、设备、介质及产品

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160353112A1 (en) * 2015-05-29 2016-12-01 Qualcomm Incorporated Coding data using an enhanced context-adaptive binary arithmetic coding (cabac) design

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245662B2 (en) 2000-10-24 2007-07-17 Piche Christopher DCT-based scalable video compression
JP4767992B2 (ja) * 2002-06-06 2011-09-07 パナソニック株式会社 可変長符号化方法および可変長復号化方法
US7379608B2 (en) 2003-12-04 2008-05-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. Arithmetic coding for transforming video and picture data units
ES2912048T3 (es) * 2010-04-13 2022-05-24 Ge Video Compression Llc Codificación de mapas de significado y bloques de coeficiente de transformada
US8861599B2 (en) 2011-03-08 2014-10-14 Sony Corporation Context reduction for last transform position coding
CN107529709B (zh) * 2011-06-16 2019-05-07 Ge视频压缩有限责任公司 解码器、编码器、解码和编码视频的方法及存储介质
US9392301B2 (en) 2011-07-01 2016-07-12 Qualcomm Incorporated Context adaptive entropy coding for non-square blocks in video coding
CN103650510B (zh) * 2011-07-15 2018-05-22 谷歌技术控股有限责任公司 用于变换系数级编码的上下文建模技术
EP3139609B1 (en) 2012-01-03 2021-01-06 HFI Innovation Inc. Method and apparatus for block-based significance map and significance group flag context selection
RU2708967C2 (ru) * 2012-01-20 2019-12-12 ДжиИ Видео Компрешн, ЭлЭлСи Кодирование коэффициентов преобразования
JP2013192118A (ja) * 2012-03-14 2013-09-26 Sharp Corp 算術復号装置、画像復号装置、算術符号化装置、および画像符号化装置
US9237344B2 (en) 2012-03-22 2016-01-12 Qualcomm Incorporated Deriving context for last position coding for video coding
US9621921B2 (en) 2012-04-16 2017-04-11 Qualcomm Incorporated Coefficient groups and coefficient coding for coefficient scans
GB2501535A (en) * 2012-04-26 2013-10-30 Sony Corp Chrominance Processing in High Efficiency Video Codecs
CN105141966B (zh) * 2015-08-31 2018-04-24 哈尔滨工业大学 视频压缩中变换系数的上下文建模方法
US10616604B2 (en) * 2015-09-01 2020-04-07 Qualcomm Incorporated Coefficient level coding in video coding
WO2017041271A1 (en) * 2015-09-10 2017-03-16 Mediatek Singapore Pte. Ltd. Efficient context modeling for coding a block of data
US10440399B2 (en) * 2015-11-13 2019-10-08 Qualcomm Incorporated Coding sign information of video data
EP3306927A1 (en) 2016-10-05 2018-04-11 Thomson Licensing Encoding and decoding methods and corresponding devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160353112A1 (en) * 2015-05-29 2016-12-01 Qualcomm Incorporated Coding data using an enhanced context-adaptive binary arithmetic coding (cabac) design

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YUNFEI ZHENG ET AL, " CE11: MODE OEPENDENT COEFFICIENT SCANNING", 16 January 2011 (2011-01-16) *

Also Published As

Publication number Publication date
US11695962B2 (en) 2023-07-04
KR102854715B1 (ko) 2025-09-04
IL274657B1 (en) 2023-12-01
IL274657A (en) 2020-06-30
CN111386702B (zh) 2024-06-11
JP7398368B2 (ja) 2023-12-14
EP3714599A1 (en) 2020-09-30
WO2019103845A1 (en) 2019-05-31
EP3490253A1 (en) 2019-05-29
CN111386702A (zh) 2020-07-07
JP2021504996A (ja) 2021-02-15
US20200382810A1 (en) 2020-12-03
CN118450119A (zh) 2024-08-06
KR20200090776A (ko) 2020-07-29
KR20250135344A (ko) 2025-09-12

Similar Documents

Publication Publication Date Title
IL274657B2 (en) Encoding and decoding methods and corresponding devices
JP2024069597A5 (https=)
JP2021530900A5 (https=)
MX2020007868A (es) Metodo y aparato para codificacion y decodificacion de video basado en un modelo lineal receptivo a muestras vecinas.
RU2013152159A (ru) Способ декодирования изображений, способ кодирования изображений, устройство декодирования изображений, устройство кодирования изображений и устройство кодирования и декодирования изображений
RU2020125153A (ru) Способ кодирования и устройство для него, и способ декодирования и устройство для него
RU2020114757A (ru) Способ и устройство для изменения атрибутов точки трехмерной (3d) сцены
US10212426B2 (en) Coefficient coding harmonization in HEVC
JP2018522468A5 (https=)
JP2017127005A5 (https=)
RU2013114276A (ru) Способ и устройство для кодирования и декодирования блока кодирования границы картинки
RU2013156553A (ru) Способ и устройство для кодирования видео и способ и устройство для декодирования видео, основанные на иерархической структуре блока кодирования
FI3688991T3 (fi) Rajoitettu muistin käyttöikkuna liikevektorin tarkennusta varten
RU2018132266A (ru) Способ и устройство для кодирования/декодирования с интра-предсказанием блока кодирования, содержащего данные изображения, упомянутое кодирование с интра-предсказанием зависит от дерева предсказания и дерева преобразования
JP2016537860A5 (https=)
NZ715990A (en) Scanning orders for non-transform coding
MX2024012207A (es) Metodo y aparato de prediccion de decodificacion y medio de almacenamiento computacional
CN104365100A (zh) 用于并行处理的视频编码方法和装置以及视频解码方法和装置
KR20180084664A (ko) 영상 신호 부호화/복호화 방법 및 장치
JP7246449B2 (ja) 符号化装置、復号装置及びプログラム
RU2019127175A (ru) Системы и способы для выполнения планарного кодирования видеосигналов с внутренним прогнозированием
DE60325934D1 (de) Segmentierung eines Bildes mittels kürzester Zyklen
HRP20250692T1 (hr) Uređaj za kodiranje slike temeljen na transformaciji
JP2021520698A5 (https=)
RU2023117247A (ru) Способ и устройство для кодирования/декодирования сигналов изображений