JP5993453B2 - クリーンランダムアクセス画像に最下レイヤ識別情報を割り当てるための符号器およびその方法 - Google Patents
クリーンランダムアクセス画像に最下レイヤ識別情報を割り当てるための符号器およびその方法 Download PDFInfo
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- JP5993453B2 JP5993453B2 JP2014520163A JP2014520163A JP5993453B2 JP 5993453 B2 JP5993453 B2 JP 5993453B2 JP 2014520163 A JP2014520163 A JP 2014520163A JP 2014520163 A JP2014520163 A JP 2014520163A JP 5993453 B2 JP5993453 B2 JP 5993453B2
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- 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
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- 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
- H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
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- 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
- H04N19/187—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 scalable video layer
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- 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
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- 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
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- 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
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Description
Claims (14)
- 動画ストリームの画像を符号化する方法であって、
クリーンランダムアクセス(CRA)画像として符号化される画像にレイヤ識別子を割り当てるステップ(301)を含み、CRA画像が自己完結型であり参照画像に依存せずに復号化され、復号化順序および出力順序の両方で一つのCRA画像に後続するすべての符号化画像が、前記CRA画像に先行する任意の画像に基づくインター予測を使用することができず、前記レイヤ識別子は最下レイヤ識別情報に設定される、方法。 - 画像のレイヤ識別子が最下レイヤ識別情報であるときは、前記画像はCRA画像である、請求項1に記載の方法。
- 符号器が、スライスヘッダ、NALユニットヘッダ、および動画ペイロードを含むネットワーク抽出レイヤ(NAL)ユニットを出力し、前記画像がCRA画像であるかどうかを示す情報と、レイヤ識別子情報とが、前記NALユニットヘッダ中に含まれて送信される、請求項1または2に記載の方法。
- 前記符号器がHEVC符号器である、請求項3に記載の方法。
- 前記レイヤ識別子が時間識別子である、請求項1から4のいずれか一項に記載の方法。
- 前記符号器がマルチビュー符号器である、請求項3に記載の方法。
- 前記レイヤ識別子がビュー識別子である、請求項6に記載の方法。
- 動画ストリームの画像を符号化するための符号器(500)であって、クリーンランダムアクセス(CRA)画像として符号化される画像にレイヤ識別子を割り当てるプロセッサ(501)を備え、CRA画像が自己完結型であり参照画像に依存せずに復号化され、復号化順序および出力順序の両方で一つのCRA画像に後続するすべての符号化画像は、出力順序で前記CRA画像に先行する任意の画像に基づくインター予測を使用することができず、前記プロセッサ(501)は前記レイヤ識別子を最下レイヤ識別情報に設定するよう構成される、符号器。
- 画像のレイヤ識別子が最下レイヤ識別情報であるときは、前記画像はCRA画像である、請求項8に記載の符号器。
- 前記符号器は、スライスヘッダ、NALユニットヘッダ、および動画ペイロードを含むネットワーク抽出レイヤ(NAL)ユニットを出力するように構成され、前記画像がCRA画像であるかどうかを示す情報と、レイヤ識別子情報とが、前記NALユニットヘッダ中に含まれて送信される、請求項8または9に記載の符号器。
- 前記符号器がHEVC符号器である、請求項8から10のいずれか一項に記載の符号器。
- 前記レイヤ識別子が時間識別子である、請求項8から11のいずれか一項に記載の符号器。
- 前記符号器がマルチビュー符号器である、請求項8から10のいずれか一項に記載の符号器。
- 前記レイヤ識別子がビュー識別子である、請求項13に記載の符号器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161508179P | 2011-07-15 | 2011-07-15 | |
US61/508,179 | 2011-07-15 | ||
PCT/SE2012/050712 WO2013012372A1 (en) | 2011-07-15 | 2012-06-26 | An encoder and method thereof for assigning a lowest layer identity to clean random access pictures |
Publications (2)
Publication Number | Publication Date |
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JP2014526180A JP2014526180A (ja) | 2014-10-02 |
JP5993453B2 true JP5993453B2 (ja) | 2016-09-14 |
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Application Number | Title | Priority Date | Filing Date |
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JP2014520163A Active JP5993453B2 (ja) | 2011-07-15 | 2012-06-26 | クリーンランダムアクセス画像に最下レイヤ識別情報を割り当てるための符号器およびその方法 |
Country Status (6)
Country | Link |
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US (1) | US20130064284A1 (ja) |
EP (1) | EP2732626A1 (ja) |
JP (1) | JP5993453B2 (ja) |
KR (1) | KR20140057533A (ja) |
WO (1) | WO2013012372A1 (ja) |
ZA (1) | ZA201400252B (ja) |
Families Citing this family (19)
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JP2011199396A (ja) | 2010-03-17 | 2011-10-06 | Ntt Docomo Inc | 動画像予測符号化装置、動画像予測符号化方法、動画像予測符号化プログラム、動画像予測復号装置、動画像予測復号方法、及び動画像予測復号プログラム |
JP5341952B2 (ja) * | 2011-05-30 | 2013-11-13 | 株式会社東芝 | ビデオサーバ及びデータ収録再生方法 |
LT2728861T (lt) * | 2011-07-02 | 2017-10-25 | Samsung Electronics Co., Ltd. | Vaizdo duomenų multipleksavimo ir demultipleksavimo būdas ir aparatas vaizdo atkūrimo būklei nustatyti |
US10034018B2 (en) * | 2011-09-23 | 2018-07-24 | Velos Media, Llc | Decoded picture buffer management |
WO2013105207A1 (en) * | 2012-01-10 | 2013-07-18 | Panasonic Corporation | Video encoding method, video encoding apparatus, video decoding method and video decoding apparatus |
WO2013162454A1 (en) * | 2012-04-24 | 2013-10-31 | Telefonaktiebolaget L M Ericsson (Publ) | Identifying a parameter set for decoding a multi-layer video representation |
US9253487B2 (en) | 2012-05-31 | 2016-02-02 | Qualcomm Incorporated | Reference index for enhancement layer in scalable video coding |
FI3471419T3 (fi) * | 2012-06-25 | 2023-05-29 | Huawei Tech Co Ltd | Gtla (gradual temporal layer access) -kuvat videopakkauksessa |
US9225978B2 (en) | 2012-06-28 | 2015-12-29 | Qualcomm Incorporated | Streaming adaption based on clean random access (CRA) pictures |
US10062416B2 (en) * | 2012-07-10 | 2018-08-28 | Sony Corporation | Image decoding device, and image decoding method, image encoding device, and image encoding method |
US9374583B2 (en) | 2012-09-20 | 2016-06-21 | Qualcomm Incorporated | Video coding with improved random access point picture behaviors |
KR20140122202A (ko) * | 2013-04-05 | 2014-10-17 | 삼성전자주식회사 | 계층 식별자 확장에 따른 비디오 스트림 부호화 방법 및 그 장치, 계층 식별자 확장에 따른 따른 비디오 스트림 복호화 방법 및 그 장치 |
CA3129121C (en) | 2013-04-07 | 2024-02-20 | Dolby International Ab | Signaling change in output layer sets |
US9591321B2 (en) | 2013-04-07 | 2017-03-07 | Dolby International Ab | Signaling change in output layer sets |
US9648326B2 (en) * | 2013-07-02 | 2017-05-09 | Qualcomm Incorporated | Optimizations on inter-layer prediction signalling for multi-layer video coding |
US9807406B2 (en) * | 2014-03-17 | 2017-10-31 | Qualcomm Incorporated | Picture flushing and decoded picture buffer parameter inference for multi-layer bitstreams |
US11395006B2 (en) * | 2019-03-06 | 2022-07-19 | Tencent America LLC | Network abstraction layer unit header |
US11153583B2 (en) | 2019-06-07 | 2021-10-19 | Qualcomm Incorporated | Spatial scalability support in video encoding and decoding |
AU2020352377A1 (en) * | 2019-09-24 | 2022-04-21 | Huawei Technologies Co., Ltd. | Signaling of picture header in video coding |
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EP2137972A2 (en) * | 2007-04-24 | 2009-12-30 | Nokia Corporation | System and method for implementing fast tune-in with intra-coded redundant pictures |
US9131033B2 (en) * | 2010-07-20 | 2015-09-08 | Qualcomm Incoporated | Providing sequence data sets for streaming video data |
US9516379B2 (en) * | 2011-03-08 | 2016-12-06 | Qualcomm Incorporated | Buffer management in video codecs |
US9591318B2 (en) * | 2011-09-16 | 2017-03-07 | Microsoft Technology Licensing, Llc | Multi-layer encoding and decoding |
US9484952B2 (en) * | 2011-11-03 | 2016-11-01 | Qualcomm Incorporated | Context state and probability initialization for context adaptive entropy coding |
US8867852B2 (en) * | 2012-01-19 | 2014-10-21 | Sharp Kabushiki Kaisha | Decoding a picture based on a reference picture set on an electronic device |
PL3611923T3 (pl) * | 2012-04-16 | 2021-12-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Sposób przetwarzania wideo z zastosowaniem warstw czasowych |
-
2012
- 2012-06-26 WO PCT/SE2012/050712 patent/WO2013012372A1/en active Application Filing
- 2012-06-26 KR KR1020147002782A patent/KR20140057533A/ko not_active Application Discontinuation
- 2012-06-26 EP EP12737915.4A patent/EP2732626A1/en not_active Ceased
- 2012-06-26 JP JP2014520163A patent/JP5993453B2/ja active Active
- 2012-06-26 US US13/641,714 patent/US20130064284A1/en not_active Abandoned
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2014
- 2014-01-13 ZA ZA2014/00252A patent/ZA201400252B/en unknown
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Publication number | Publication date |
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EP2732626A1 (en) | 2014-05-21 |
JP2014526180A (ja) | 2014-10-02 |
US20130064284A1 (en) | 2013-03-14 |
WO2013012372A1 (en) | 2013-01-24 |
KR20140057533A (ko) | 2014-05-13 |
ZA201400252B (en) | 2015-05-27 |
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