BR112021023637A2 - Codificador, decodificador, método de codificação, e método de decodificação - Google Patents

Codificador, decodificador, método de codificação, e método de decodificação

Info

Publication number
BR112021023637A2
BR112021023637A2 BR112021023637A BR112021023637A BR112021023637A2 BR 112021023637 A2 BR112021023637 A2 BR 112021023637A2 BR 112021023637 A BR112021023637 A BR 112021023637A BR 112021023637 A BR112021023637 A BR 112021023637A BR 112021023637 A2 BR112021023637 A2 BR 112021023637A2
Authority
BR
Brazil
Prior art keywords
parameter
parameters
encoder
decoder
temporal
Prior art date
Application number
BR112021023637A
Other languages
English (en)
Portuguese (pt)
Inventor
Kiyofumi Abe
Tadamasa Toma
Takahiro Nishi
Virginie Drugeon
Yusuke Kato
Original Assignee
Panasonic Ip Corp America
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
Application filed by Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of BR112021023637A2 publication Critical patent/BR112021023637A2/pt

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
    • H04N19/70—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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/134—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • 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
    • H04N19/177—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 group of pictures [GOP]
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/31—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the temporal domain
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
    • 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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BR112021023637A 2019-06-18 2020-06-18 Codificador, decodificador, método de codificação, e método de decodificação BR112021023637A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962862892P 2019-06-18 2019-06-18
PCT/JP2020/023903 WO2020256048A1 (ja) 2019-06-18 2020-06-18 符号化装置、復号装置、符号化方法、および復号方法

Publications (1)

Publication Number Publication Date
BR112021023637A2 true BR112021023637A2 (pt) 2022-03-29

Family

ID=74040835

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021023637A BR112021023637A2 (pt) 2019-06-18 2020-06-18 Codificador, decodificador, método de codificação, e método de decodificação

Country Status (7)

Country Link
US (3) US11936886B2 (https=)
JP (3) JP7455829B2 (https=)
KR (1) KR20220024007A (https=)
CN (6) CN118450146A (https=)
BR (1) BR112021023637A2 (https=)
MX (6) MX2021014185A (https=)
WO (1) WO2020256048A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2021014185A (es) * 2019-06-18 2022-01-06 Panasonic Ip Corp America Codificador, decodificador, metodo de codificacion y metodo de decodificacion.
US20240373049A1 (en) * 2023-04-18 2024-11-07 Qualcomm Incorporated Video decoding engine for parallel decoding of multiple input video streams
CN121646915A (zh) * 2024-07-02 2026-03-10 Lg电子株式会社 图像编码方法、图像编码设备、图像解码方法、图像解码设备、发送比特流的方法及存储比特流的记录介质
KR20260007337A (ko) * 2024-07-02 2026-01-13 엘지전자 주식회사 영상 부호화 방법, 영상 부호화 장치, 영상 복호화 방법, 영상 복호화 장치, 비트스트림을 전송하는 방법 및 비트스트림을 저장한 기록매체

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
MY162367A (en) 2007-01-05 2017-06-15 Thomson Licensing Hypothetical reference decoder for scalable video coding
CN102984544A (zh) * 2007-01-08 2013-03-20 汤姆森特许公司 用于视频流拼接的方法及装置
US9113172B2 (en) * 2011-01-14 2015-08-18 Vidyo, Inc. Techniques for describing temporal coding structure
US9565431B2 (en) * 2012-04-04 2017-02-07 Qualcomm Incorporated Low-delay video buffering in video coding
US9402082B2 (en) * 2012-04-13 2016-07-26 Sharp Kabushiki Kaisha Electronic devices for sending a message and buffering a bitstream
US9426460B2 (en) 2012-04-13 2016-08-23 Sharp Kabushiki Kaisha Electronic devices for signaling multiple initial buffering parameters
US9654802B2 (en) * 2012-09-24 2017-05-16 Qualcomm Incorporated Sequence level flag for sub-picture level coded picture buffer parameters
US9661341B2 (en) * 2013-01-07 2017-05-23 Microsoft Technology Licensing, Llc Syntax and semantics for buffering information to simplify video splicing
US20150016547A1 (en) * 2013-07-15 2015-01-15 Sony Corporation Layer based hrd buffer management for scalable hevc
JP5789004B2 (ja) * 2013-08-09 2015-10-07 ソニー株式会社 送信装置、送信方法、受信装置、受信方法、符号化装置および符号化方法
KR102212211B1 (ko) * 2014-01-03 2021-02-04 삼성전자주식회사 멀티 레이어 비디오의 복호화 및 부호화를 위한 버퍼 관리 방법 및 장치
US10602190B2 (en) * 2016-05-13 2020-03-24 Sharp Kabushiki Kaisha Temporal sub-layer descriptor
MX2021014185A (es) * 2019-06-18 2022-01-06 Panasonic Ip Corp America Codificador, decodificador, metodo de codificacion y metodo de decodificacion.
IL291689B2 (en) * 2019-09-24 2025-07-01 Huawei Tech Co Ltd Hypothetical Source Decoder (HRD) for checking the suitability of output layer sets (OLS)

Also Published As

Publication number Publication date
CN114097245A (zh) 2022-02-25
WO2020256048A1 (ja) 2020-12-24
JP2025137543A (ja) 2025-09-19
CN114097245B (zh) 2024-06-14
US12335498B2 (en) 2025-06-17
US20240214589A1 (en) 2024-06-27
US20220103843A1 (en) 2022-03-31
CN118450147A (zh) 2024-08-06
JP7455829B2 (ja) 2024-03-26
JP7710555B2 (ja) 2025-07-18
JPWO2020256048A1 (https=) 2020-12-24
MX2024012955A (es) 2024-11-08
CN118450145A (zh) 2024-08-06
JP2024069422A (ja) 2024-05-21
CN118433417A (zh) 2024-08-02
US11936886B2 (en) 2024-03-19
MX2024012958A (es) 2024-11-08
KR20220024007A (ko) 2022-03-03
CN118450144A (zh) 2024-08-06
MX2024012959A (es) 2024-11-08
MX2024012956A (es) 2024-11-08
CN118450146A (zh) 2024-08-06
MX2021014185A (es) 2022-01-06
MX2024012957A (es) 2024-11-08
US20250274594A1 (en) 2025-08-28

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