JP6242385B2 - サンプルアダプティブオフセット情報(SampleAdaptiveOffsetInformation)の符号化の方法と装置 - Google Patents
サンプルアダプティブオフセット情報(SampleAdaptiveOffsetInformation)の符号化の方法と装置 Download PDFInfo
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- 230000003044 adaptive effect Effects 0.000 title claims description 20
- 238000012545 processing Methods 0.000 claims description 53
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- 238000007796 conventional method Methods 0.000 description 3
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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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- 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]
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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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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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
- H04N19/90—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
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic 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
- H04N19/85—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
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Description
Claims (6)
- ビデオデコーダにおけるビデオデータのサンプル適応オフセット(以下、SAOと称す)処理方法であって、
媒体またはプロセッサから、画像に関連する処理後の再構築画素のブロックを受信する工程と、
ビデオビットストリームから、SAO合併左フラグとSAO合併上フラグとを決定する工程と、
前記SAO合併左フラグと前記SAO合併上フラグとを含むSAO情報に基づいて、SAO処理を、処理後の再構築画素の前記ブロックに適用する工程とを含み、
前記ブロックは前記ビデオビットストリームから復号され、
前記SAO合併左フラグと前記SAO合併上フラグとは、CABAC(コンテキストベース適応2値算術符号化)復号を用いて、前記ビデオビットストリームから復号され、かつ、互いに共同コンテキストモデルを共有することを特徴とする方法。 - 前記共同コンテキストモデルは、前記SAO合併左フラグと前記SAO合併上フラグとの共同統計に基づいて生成されることを特徴とする請求項1に記載の方法。
- ビデオエンコーダーにおけるビデオデータのサンプル適応オフセット(以下、SAOと称す)処理方法であって、
媒体またはプロセッサから、画像に関連する処理後の再構築画素のブロックを受信する工程と、
SAO合併左フラグとSAO合併上フラグとを、処理後の再構築画素の前記ブロックに決定する工程と、
共同コンテキストモデルにしたがって、CABAC(コンテキストベース適応2値算術符号化)を前記SAO合併左フラグと前記SAO合併上フラグとに適用する工程と、
符号化された前記SAO合併左フラグと前記SAO合併上フラグとを、前記ビデオデータに関連するビデオビットストリーム中に組み込む工程とを含み、
前記SAO合併左フラグと前記SAO合併上フラグとが、互いに前記共同コンテキストモデルを共有することを特徴とする方法。 - 前記共同コンテキストモデルは、前記SAO合併左フラグと前記SAO合併上フラグとの共同統計に基づいて生成されることを特徴とする請求項3に記載の方法。
- ビデオデコーダにおけるビデオデータのサンプル適応オフセット(以下SAOと称す)処理装置であって、
媒体またはプロセッサから、画像に関連する処理後の再構築画素のブロックを受信する手段と、
ビデオビットストリームから、SAO合併左フラグとSAO合併上フラグとを決定する手段と、
前記SAO合併左フラグと前記SAO合併上フラグとを含むSAO情報に基づいて、SAO処理を、処理後の再構築画素の前記ブロックに適用する手段とを有し、
前記ブロックは前記ビデオビットストリームから復号され、
前記SAO合併左フラグと前記SAO合併上フラグとは、CABAC(コンテキストベース適応2値算術符号化)復号を用いて、前記ビデオビットストリームから復号され、かつ、互いに共同コンテキストモデルを共有することを特徴とする装置。 - ビデオエンコーダーにおけるビデオデータのサンプル適応オフセット(SAO)処理装置であって、
媒体またはプロセッサから、画像に関連する処理後の再構築画素のブロックを受信する手段と、
SAO合併左フラグとSAO合併上フラグとを、処理後の再構築画素の前記ブロックに決定する手段と、
共同コンテキストモデルにしたがって、CABAC(コンテキストベース適応2値算術符号化)を、前記SAO合併左フラグと前記SAO合併上フラグとに適用する手段と、
前記ビデオデータに関連するビデオビットストリームに、符号化された前記SAO合併左フラグと前記SAO合併上フラグとを取り込む手段とを有し、
前記SAO合併左フラグと前記SAO合併上フラグとが、互いに前記共同コンテキストモデルを共有することを特徴とする装置。
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PCT/CN2013/073627 WO2013177975A1 (en) | 2012-05-29 | 2013-04-02 | Method and apparatus for coding of sample adaptive offset information |
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US (2) | US9942571B2 (ja) |
EP (2) | EP3139616A1 (ja) |
JP (2) | JP6242385B2 (ja) |
KR (1) | KR101638720B1 (ja) |
CN (2) | CN104303506B (ja) |
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CN106851275A (zh) | 2017-06-13 |
JP2015521443A (ja) | 2015-07-27 |
EP2856758A4 (en) | 2016-03-30 |
US9942571B2 (en) | 2018-04-10 |
US10116967B2 (en) | 2018-10-30 |
JP2016105652A (ja) | 2016-06-09 |
CN104303506B (zh) | 2017-08-01 |
EP3139616A1 (en) | 2017-03-08 |
CN104303506A (zh) | 2015-01-21 |
WO2013177975A1 (en) | 2013-12-05 |
CA2937449A1 (en) | 2013-12-05 |
CA2863549A1 (en) | 2013-12-05 |
CA2937449C (en) | 2018-12-04 |
KR101638720B1 (ko) | 2016-07-20 |
CA2863549C (en) | 2018-12-04 |
US20170041638A1 (en) | 2017-02-09 |
US20150098513A1 (en) | 2015-04-09 |
KR20140130171A (ko) | 2014-11-07 |
EP2856758A1 (en) | 2015-04-08 |
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