BR112022012990A2 - Um método, um aparelho e um produto de programa de computador para codificação de vídeo e decodificação de vídeo - Google Patents

Um método, um aparelho e um produto de programa de computador para codificação de vídeo e decodificação de vídeo

Info

Publication number
BR112022012990A2
BR112022012990A2 BR112022012990A BR112022012990A BR112022012990A2 BR 112022012990 A2 BR112022012990 A2 BR 112022012990A2 BR 112022012990 A BR112022012990 A BR 112022012990A BR 112022012990 A BR112022012990 A BR 112022012990A BR 112022012990 A2 BR112022012990 A2 BR 112022012990A2
Authority
BR
Brazil
Prior art keywords
subpicture
track
video
container file
recording
Prior art date
Application number
BR112022012990A
Other languages
English (en)
Inventor
Kammachi Sreedhar Kashyap
Aksu Emre
Hannuksela Miska
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of BR112022012990A2 publication Critical patent/BR112022012990A2/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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/39—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
    • G06F16/71—Indexing; Data structures therefor; Storage structures
    • 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
    • H04N19/169—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
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/36—Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability
    • 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
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234345—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Data Mining & Analysis (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

UM MÉTODO, UM APARELHO E UM PRODUTO DE PROGRAMA DE COMPUTADOR PARA CODIFICAÇÃO DE VÍDEO E DECODIFICAÇÃO DE VÍDEO. As modalidades se refere a um método para gravar, em um arquivo recipiente, duas ou mais faixas de subimagem; gravar, no arquivo recipiente, uma faixa de base, que é destinada a ser resolvida em um fluxo de bits de vídeo; indicar, na faixa de base, um modelo de subimagens; gravar, no arquivo recipiente, uma entrada de descrição de grupo de amostra indicativa de uma primeira faixa de subimagem ou um grupo de faixas de subimagem para cada posição de subimagem no modelo de subimagens, em que a primeira faixa de subimagem compreende a sequência de subimagem para a respectiva posição de subimagem e em que qualquer faixa dentre o grupo de faixas de subimagem compreende uma sequência de subimagem válida para a respectiva posição de subimagem; e indicar no arquivo recipiente, amostras da faixa de base para as quais a entrada de descrição de grupo de amostra se destina a ser usada para reconstruir o fluxo de bits de vídeo. As modalidades também se referem a um método para análise, assim como equipamento técnico para implementar o método para gravação e o método para análise.
BR112022012990A 2019-12-31 2020-12-17 Um método, um aparelho e um produto de programa de computador para codificação de vídeo e decodificação de vídeo BR112022012990A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20196140 2019-12-31
PCT/FI2020/050847 WO2021136880A1 (en) 2019-12-31 2020-12-17 A method, an apparatus and a computer program product for video encoding and video decoding

Publications (1)

Publication Number Publication Date
BR112022012990A2 true BR112022012990A2 (pt) 2022-11-16

Family

ID=76687159

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022012990A BR112022012990A2 (pt) 2019-12-31 2020-12-17 Um método, um aparelho e um produto de programa de computador para codificação de vídeo e decodificação de vídeo

Country Status (7)

Country Link
US (1) US20230027058A1 (pt)
EP (1) EP4085645A4 (pt)
JP (1) JP7472292B2 (pt)
KR (1) KR20220114088A (pt)
CN (1) CN114930868A (pt)
BR (1) BR112022012990A2 (pt)
WO (1) WO2021136880A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11863768B2 (en) * 2020-09-02 2024-01-02 Lemon Inc. Transition period for image transitions in a media file
EP3972273A1 (en) 2020-09-17 2022-03-23 Lemon Inc. Handling of non-vcl nal units in picture unit construction
EP3972278A1 (en) 2020-09-17 2022-03-23 Lemon Inc. Subpicture tracks in coded video
GB2605955A (en) * 2021-04-13 2022-10-26 Canon Kk Method and apparatus for encapsulating encoded media data in a media file
US11997293B2 (en) 2021-04-15 2024-05-28 Lemon Inc. Sub-picture track level indicator
CN115618027A (zh) * 2021-07-12 2023-01-17 腾讯科技（深圳）有限公司 一种数据处理方法、装置、计算机及可读存储介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7778526B2 (en) * 2004-06-01 2010-08-17 Nero Ag System and method for maintaining DVD-subpicture streams upon conversion to higher compressed data format
GB2516826B (en) 2013-07-23 2016-06-22 Canon Kk Method, device and computer program for encapsulating partitioned timed media data by creating tracks to be independently encapsulated in at least one media f
GB2550604A (en) 2016-05-24 2017-11-29 Canon Kk Method, device, and computer program for encapsulating and parsing timed media data
US11062738B2 (en) * 2017-03-23 2021-07-13 Qualcomm Incorporated Signalling of video content including sub-picture bitstreams for video coding
GB2560921B (en) 2017-03-27 2020-04-08 Canon Kk Method and apparatus for encoding media data comprising generated content
CN109587478B (zh) * 2017-09-29 2023-03-31 华为技术有限公司 一种媒体信息的处理方法及装置
GB2567625B (en) 2017-10-12 2020-07-15 Canon Kk Method, device, and computer program for generating timed media data
KR20200107945A (ko) 2018-01-12 2020-09-16 소니 주식회사 정보 처리 장치 및 방법
AU2019268844B2 (en) 2018-05-15 2022-09-29 FG Innovation Company Limited Image encoding device, encoded stream extraction device, and image decoding device
GB2585760B (en) 2018-06-06 2022-04-20 Canon Kk Method, device, and computer program for transmitting media content
GB2575074B (en) 2018-06-27 2022-09-28 Canon Kk Encapsulating video content with an indication of whether a group of tracks collectively represents a full frame or a part of a frame
GB2590435B (en) 2019-12-17 2023-12-20 Canon Kk Method, device, and computer program for improving encapsulation of media content

Also Published As

Publication number Publication date
JP2023508736A (ja) 2023-03-03
CN114930868A (zh) 2022-08-19
KR20220114088A (ko) 2022-08-17
WO2021136880A1 (en) 2021-07-08
JP7472292B2 (ja) 2024-04-22
US20230027058A1 (en) 2023-01-26
EP4085645A1 (en) 2022-11-09
EP4085645A4 (en) 2023-12-27

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