JP2009525627A - 復号化システムおよび方法 - Google Patents
復号化システムおよび方法 Download PDFInfo
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- JP2009525627A JP2009525627A JP2008543565A JP2008543565A JP2009525627A JP 2009525627 A JP2009525627 A JP 2009525627A JP 2008543565 A JP2008543565 A JP 2008543565A JP 2008543565 A JP2008543565 A JP 2008543565A JP 2009525627 A JP2009525627 A JP 2009525627A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/4006—Conversion to or from arithmetic code
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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
- H04N19/17—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
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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
-
- 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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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
方法の一実施形態は、とりわけ、複数のコンテキスト適応型バイナリ算術符号化(CABAC)符号化シンボルを含むスライスを受信することと、プロセッサの介入なしにスライスを復号することと、を含む。
Claims (20)
- 複数のコンテキスト適応型バイナリ算術符号化(CABAC)符号化シンボルを備えるスライスを受信することと、
プロセッサの介入なしに前記スライスを復号することと、
を備える復号化方法。 - 以前に復号されたマクロブロックに対応するコンテキスト情報を検索することを更に備える、請求項1に記載の方法。
- 前記コンテキスト情報に基づいてコンテキスト状態情報を検索することを更に備える、請求項2に記載の方法。
- 各シンボル復号化に応答して前記コンテキスト状態情報を更新することを更に備える、請求項3に記載の方法。
- 前記スライスの全てのマクロブロック構文要素の復号化に基づいて前記コンテキスト情報を更新することを更に備える、請求項2に記載の方法。
- 前記復号することが、各クロックサイクルにおけるシンボル復号化を備える、請求項1に記載の方法。
- プロセッサの介入なしにスライスに対応する複数のコンテキスト適応型バイナリ算術符号化(CABAC)符号化シンボルを復号するよう構成されたマクロブロック復号化モジュール、
を備える、復号化システム。 - 前記マクロブロック復号化モジュールは、各クロックサイクルにおいてシンボル復号化を行うよう構成されたシンボル復号化モジュールを備える、請求項7に記載のシステム。
- 前記マクロブロック復号化モジュールは、レジスタからコンテキスト情報を検索して、前記コンテキスト情報に基づいてコンテキストIDを決定するよう構成された複数の構文復号化器を備える、請求項8に記載のシステム。
- 前記マクロブロック復号化モジュールは、以前に復号された構文要素に基づき、前記複数の構文復号化器のどちらが前記シンボル復号化モジュールを駆動するかを決定するよう構成された復号制御モジュールを備える、請求項9に記載のシステム。
- 前記マクロブロック復号化モジュールは、前記復号制御モジュールによる通信に応答して、前記シンボル復号化モジュールを駆動する前記複数の構文復号化器の1つを選択する切替モジュールを備える、請求項10に記載のシステム。
- 前記選択された構文復号化器は、前記シンボル復号化モジュールに前記コンテキストIDを提供する、請求項11に記載のシステム。
- 前記マクロブロック復号化モジュールは、コンテキスト制御モジュールおよびシンボルコンテキストメモリを備え、前記コンテキスト制御モジュールは、前記コンテキストIDに基づいて前記シンボルコンテキストメモリからコンテキスト状態情報を検索し、前記コンテキスト状態情報を前記シンボル復号化モジュールに提供するよう構成される、請求項9に記載のシステム。
- 前記マクロブロック復号化モジュールは、前記コンテキスト状態情報に基づいて前記複数のシンボルのうちの1つを復号するよう構成される、請求項13に記載のシステム。
- 前記シンボル復号化モジュールは、前記シンボルを復号するよう構成される、請求項13に記載のシステム。
- 制御モジュールおよびストリームバッファ、およびスライスヘッダを復号して開始符号を検出するよう構成された復号化システムを更に備える、請求項7に記載のシステム。
- スライスパラメータを前記マクロブロック復号化モジュールにプログラムし、前記マクロブロック復号化モジュールがマクロブロックデータの復号を開始するよう指示するよう構成された制御モジュールを更に備える、請求項7に記載のシステム。
- 前記マクロブロック復号化モジュールに接続され、以前に復号されたマクロブロックに対応するコンテキスト情報を格納するよう構成されたロウストアバッファを更に備える、請求項7に記載のシステム。
- 前記マクロブロック復号化モジュールは、コンテキスト適応型バイナリ算術符号化(CABAC)復号化器を備える、請求項7に記載のシステム。
- 複数のコンテキスト適応型バイナリ算術符号化(CABAC)符号化シンボルを備えるスライスを受信する手段と、
プロセッサの介入なしに前記スライスを復号する手段と、
を備える、復号化システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/287,630 US7245242B2 (en) | 2005-11-28 | 2005-11-28 | Decoding systems and methods |
US11/287,630 | 2005-11-28 | ||
PCT/US2006/061303 WO2007062428A2 (en) | 2005-11-28 | 2006-11-28 | Decoding systems and methods |
Publications (2)
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JP2009525627A true JP2009525627A (ja) | 2009-07-09 |
JP5043033B2 JP5043033B2 (ja) | 2012-10-10 |
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JP2008543565A Expired - Fee Related JP5043033B2 (ja) | 2005-11-28 | 2006-11-28 | 復号化システムおよび方法 |
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Country | Link |
---|---|
US (2) | US7245242B2 (ja) |
EP (1) | EP1966896B1 (ja) |
JP (1) | JP5043033B2 (ja) |
CN (1) | CN101517899B (ja) |
WO (1) | WO2007062428A2 (ja) |
Cited By (2)
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JP2014518473A (ja) * | 2011-06-16 | 2014-07-28 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | エントロピー符号化をサポートするモード切替 |
US10645388B2 (en) | 2011-06-16 | 2020-05-05 | Ge Video Compression, Llc | Context initialization in entropy coding |
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CN100584025C (zh) * | 2005-08-04 | 2010-01-20 | 华为技术有限公司 | 一种基于内容自适应的算术解码系统及装置 |
US7245242B2 (en) * | 2005-11-28 | 2007-07-17 | Conexant Systems, Inc. | Decoding systems and methods |
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JP4379444B2 (ja) * | 2006-07-26 | 2009-12-09 | ソニー株式会社 | 復号化方法、復号化方法のプログラム、復号化方法のプログラムを記録した記録媒体、復号化装置 |
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KR101501568B1 (ko) * | 2008-07-04 | 2015-03-12 | 에스케이 텔레콤주식회사 | 영상 부호화 및 복호화 장치 및, 방법 |
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JP4962476B2 (ja) * | 2008-11-28 | 2012-06-27 | ソニー株式会社 | 算術復号装置 |
US20100226441A1 (en) * | 2009-03-06 | 2010-09-09 | Microsoft Corporation | Frame Capture, Encoding, and Transmission Management |
US20100225655A1 (en) * | 2009-03-06 | 2010-09-09 | Microsoft Corporation | Concurrent Encoding/Decoding of Tiled Data |
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US8344917B2 (en) * | 2010-09-30 | 2013-01-01 | Sharp Laboratories Of America, Inc. | Methods and systems for context initialization in video coding and decoding |
US9706214B2 (en) | 2010-12-24 | 2017-07-11 | Microsoft Technology Licensing, Llc | Image and video decoding implementations |
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2006
- 2006-11-28 CN CN2006800444788A patent/CN101517899B/zh not_active Expired - Fee Related
- 2006-11-28 EP EP06840046.4A patent/EP1966896B1/en not_active Not-in-force
- 2006-11-28 JP JP2008543565A patent/JP5043033B2/ja not_active Expired - Fee Related
- 2006-11-28 WO PCT/US2006/061303 patent/WO2007062428A2/en active Application Filing
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JP2014518473A (ja) * | 2011-06-16 | 2014-07-28 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | エントロピー符号化をサポートするモード切替 |
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Also Published As
Publication number | Publication date |
---|---|
EP1966896A4 (en) | 2009-11-11 |
US20070120711A1 (en) | 2007-05-31 |
JP5043033B2 (ja) | 2012-10-10 |
CN101517899B (zh) | 2012-12-12 |
CN101517899A (zh) | 2009-08-26 |
WO2007062428A3 (en) | 2008-12-31 |
WO2007062428A2 (en) | 2007-05-31 |
US7245242B2 (en) | 2007-07-17 |
US20070230570A1 (en) | 2007-10-04 |
US7504971B2 (en) | 2009-03-17 |
EP1966896A2 (en) | 2008-09-10 |
EP1966896B1 (en) | 2013-05-22 |
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