JP5256243B2 - 画像復号化方法、画像復号化装置およびプログラム - Google Patents
画像復号化方法、画像復号化装置およびプログラム Download PDFInfo
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- JP5256243B2 JP5256243B2 JP2010106751A JP2010106751A JP5256243B2 JP 5256243 B2 JP5256243 B2 JP 5256243B2 JP 2010106751 A JP2010106751 A JP 2010106751A JP 2010106751 A JP2010106751 A JP 2010106751A JP 5256243 B2 JP5256243 B2 JP 5256243B2
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- 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
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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
- H04N19/105—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
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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
- H04N19/134—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
- H04N19/142—Detection of scene cut or scene change
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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
- H04N19/134—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
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
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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
- H04N19/134—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
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
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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
- H04N19/134—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
- H04N19/164—Feedback from the receiver or from the transmission channel
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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
- H04N19/172—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 picture, frame or field
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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
- H04N19/177—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]
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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
- H04N19/42—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
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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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
- H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
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- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Television Signal Processing For Recording (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Description
2.短時間保存メモリで予測符号化の参照ピクチャとして不要になったピクチャの保存されているメモリ領域を開放する指令
3.短時間保存メモリのピクチャを長時間保存メモリに移動する指令
4.メモリ内のピクチャを全て開放してピクチャ復号化に関する情報を初期化する指令
図1は、本実施の形態における画像符号化方法を実現するための画像符号化装置の構成を示すブロック図である。
次に、本発明の実施の形態2について説明する。
次に、本発明の実施の形態3について説明する。
101 メモリ情報制御部
102 短時間保存メモリ管理部
103 長時間保存メモリ管理部
104 非保存メモリ管理情報部
105 管理情報符号化部
106 参照画像選択部
107 保存領域指定部
108 参照領域指定部
109 画像メモリ
110 画像符号化部
111 画像復号化部
112 可変長符号化部
113 カウンタ
114 カウンタ
200 画像復号化装置
201 メモリ情報制御部
202 短時間保存メモリ管理部
203 長時間保存メモリ管理部
205 管理情報復号化部
207 保存領域指定部
208 参照領域指定部
209 画像メモリ
210 画像復号化部
212 可変長復号化部
215 編集検出部
CSt メモリ管理情報ストリーム
H 編集点
PT ピクチャタイプ情報
Pri 重要度指示信号
VSt 画像符号化ストリーム
Vin 入力画像信号
Vout 復号画像信号
Y 画像符号化ストリーム
Claims (3)
- 動画像信号がピクチャ単位で符号化された画像符号化信号を復号化する際に、所定のピクチャ番号で特定されるピクチャが複数回、繰り返し現れるように、各ピクチャに対して所定のピクチャ数単位で復号化順に割り当てられたピクチャ番号を用いて、前記画像符号化信号を復号化する画像復号化方法であって、
所定のピクチャ番号で特定されるピクチャに対するメモリ上の管理内容を示すとともに、前記所定のピクチャ番号を含む再送メモリ管理コマンドが、前記画像符号化信号中に付加されているか否かを判別する判別ステップと、
前記判別ステップで再送メモリ管理コマンドが付加されていると判別されたときには、前記再送メモリ管理コマンドまでの画像符号化信号に含まれるピクチャであって、前記再送メモリ管理コマンドに含まれている前記所定のピクチャ番号で特定されるピクチャの中から、復号化順で前記再送メモリ管理コマンドの直前にあるピクチャのみを選択する選択ステップと、
前記選択ステップで選択された、前記所定のピクチャ番号で特定されるピクチャに対して、前記再送メモリ管理コマンドにより示される管理内容を実行する実行ステップと
を含むことを特徴とする画像復号化方法。 - 動画像信号がピクチャ単位で符号化された画像符号化信号を復号化する際に、所定のピクチャ番号で特定されるピクチャが複数回、繰り返し現れるように、各ピクチャに対して所定のピクチャ数単位で復号化順に割り当てられたピクチャ番号を用いて、前記画像符号化信号を復号化する画像復号化装置であって、
所定のピクチャ番号で特定されるピクチャに対するメモリ上の管理内容を示すとともに、前記所定のピクチャ番号を含む再送メモリ管理コマンドが、前記画像符号化信号中に付加されているか否かを判別する判別手段と、
前記判別手段で再送メモリ管理コマンドが付加されていると判別されたときには、前記再送メモリ管理コマンドまでの画像符号化信号に含まれるピクチャであって、前記再送メモリ管理コマンドに含まれている前記所定のピクチャ番号で特定されるピクチャの中から、復号化順で前記再送メモリ管理コマンドの直前にあるピクチャのみを選択する選択手段と、
前記選択手段で選択された、前記所定のピクチャ番号で特定されるピクチャに対して、前記再送メモリ管理コマンドにより示される管理内容を実行する実行手段と
を備えることを特徴とする画像復号化装置。 - 動画像信号がピクチャ単位で符号化された画像符号化信号を復号化する際に、所定のピクチャ番号で特定されるピクチャが複数回、繰り返し現れるように、各ピクチャに対して所定のピクチャ数単位で復号化順に割り当てられたピクチャ番号を用いて、前記画像符号化信号を復号化するためのプログラムであって、
所定のピクチャ番号で特定されるピクチャに対するメモリ上の管理内容を示すとともに、前記所定のピクチャ番号を含む再送メモリ管理コマンドが、前記画像符号化信号中に付加されているか否かを判別する判別ステップと、
前記判別ステップで再送メモリ管理コマンドが付加されていると判別されたときには、前記再送メモリ管理コマンドまでの画像符号化信号に含まれるピクチャであって、前記再送メモリ管理コマンドに含まれている前記所定のピクチャ番号で特定されるピクチャの中から、復号化順で前記再送メモリ管理コマンドの直前にあるピクチャのみを選択する選択ステップと、
前記選択ステップで選択された、前記所定のピクチャ番号で特定されるピクチャに対して、前記再送メモリ管理コマンドにより示される管理内容を実行する実行ステップと
をコンピュータに実行させることを特徴とするプログラム。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010106751A JP5256243B2 (ja) | 2003-03-03 | 2010-05-06 | 画像復号化方法、画像復号化装置およびプログラム |
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| JP2003056135 | 2003-03-03 | ||
| JP2003056135 | 2003-03-03 | ||
| JP2010106751A JP5256243B2 (ja) | 2003-03-03 | 2010-05-06 | 画像復号化方法、画像復号化装置およびプログラム |
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| JP2004039528A Division JP4544879B2 (ja) | 2003-03-03 | 2004-02-17 | 画像符号化方法、画像符号化装置及びプログラム |
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| Publication Number | Publication Date |
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| JP2010226743A JP2010226743A (ja) | 2010-10-07 |
| JP5256243B2 true JP5256243B2 (ja) | 2013-08-07 |
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| Country | Link |
|---|---|
| US (2) | US8223833B2 (ja) |
| EP (3) | EP2306728B1 (ja) |
| JP (1) | JP5256243B2 (ja) |
| KR (1) | KR100996043B1 (ja) |
| CN (3) | CN101771881B (ja) |
| AT (1) | ATE542371T1 (ja) |
| AU (1) | AU2004218397B2 (ja) |
| BR (1) | BRPI0406424B1 (ja) |
| CA (1) | CA2507825C (ja) |
| ES (1) | ES2379265T3 (ja) |
| MX (1) | MXPA05005087A (ja) |
| WO (1) | WO2004080083A1 (ja) |
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| JP4608953B2 (ja) * | 2004-06-07 | 2011-01-12 | ソニー株式会社 | データ記録装置、方法およびプログラム、データ再生装置、方法およびプログラム、ならびに、記録媒体 |
| US8229983B2 (en) | 2005-09-27 | 2012-07-24 | Qualcomm Incorporated | Channel switch frame |
| US8670437B2 (en) * | 2005-09-27 | 2014-03-11 | Qualcomm Incorporated | Methods and apparatus for service acquisition |
| CN101371312B (zh) | 2005-12-08 | 2015-12-02 | 维德约股份有限公司 | 用于视频通信系统中的差错弹性和随机接入的系统和方法 |
| US8160156B2 (en) * | 2006-02-01 | 2012-04-17 | Verint Systems, Inc. | System and method for controlling the long term generation rate of compressed data |
| US8693538B2 (en) | 2006-03-03 | 2014-04-08 | Vidyo, Inc. | System and method for providing error resilience, random access and rate control in scalable video communications |
| CN101536524B (zh) * | 2006-11-15 | 2012-06-13 | 高通股份有限公司 | 用于使用信道切换帧的应用的系统和方法 |
| AU2008204833A1 (en) | 2007-01-09 | 2008-07-17 | Vidyo, Inc. | Improved systems and methods for error resilience in video communication systems |
| US7933372B2 (en) * | 2007-03-08 | 2011-04-26 | Freescale Semiconductor, Inc. | Successive interference cancellation based on the number of retransmissions |
| 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 |
| JP6066561B2 (ja) * | 2012-01-26 | 2017-01-25 | キヤノン株式会社 | 映像処理装置、映像処理方法およびプログラム |
| US10051264B2 (en) | 2012-04-20 | 2018-08-14 | Qualcomm Incorporated | Marking reference pictures in video sequences having broken link pictures |
| KR20240045690A (ko) | 2022-09-30 | 2024-04-08 | 인하대학교 산학협력단 | 초저함량 백금 및 이의 합금과 탄소쉘을 포함하는 산소 환원 반응용 서브나노클러스터 촉매 |
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| JP4190594B2 (ja) | 1995-12-28 | 2008-12-03 | ソニー株式会社 | 電子機器及び信号処理方法 |
| US5899578A (en) * | 1995-12-25 | 1999-05-04 | Sony Corporation | Digital signal processor, processing method, digital signal recording/playback device and digital signal playback method |
| US5847762A (en) * | 1995-12-27 | 1998-12-08 | Thomson Consumer Electronics, Inc. | MPEG system which decompresses and then recompresses MPEG video data before storing said recompressed MPEG video data into memory |
| JP3535297B2 (ja) * | 1996-01-26 | 2004-06-07 | ローム株式会社 | 画像データ復号方法およびこの方法を用いた画像データ復号装置 |
| US6823016B1 (en) * | 1998-02-20 | 2004-11-23 | Intel Corporation | Method and system for data management in a video decoder |
| JP3626687B2 (ja) * | 1998-12-15 | 2005-03-09 | 松下電器産業株式会社 | 画像処理装置 |
| US20010027468A1 (en) | 2000-03-09 | 2001-10-04 | Sanyo Electric Co., Ltd. | Transmission system, reception system, and transmission and reception system capable of displaying a scene with high quality |
| JP2001258025A (ja) * | 2000-03-09 | 2001-09-21 | Sanyo Electric Co Ltd | マルチメディア受信システム |
| JP2003289544A (ja) | 2002-03-27 | 2003-10-10 | Sony Corp | 画像情報符号化装置及び方法、画像情報復号装置及び方法、並びにプログラム |
| JP4215197B2 (ja) * | 2002-04-12 | 2009-01-28 | パナソニック株式会社 | 画像符号化方法および画像復号化方法 |
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- 2004-02-19 MX MXPA05005087A patent/MXPA05005087A/es active IP Right Grant
- 2004-02-19 WO PCT/JP2004/001899 patent/WO2004080083A1/ja not_active Ceased
- 2004-02-19 KR KR20057008438A patent/KR100996043B1/ko not_active Expired - Lifetime
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Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0406424A (pt) | 2005-11-22 |
| US8223833B2 (en) | 2012-07-17 |
| MXPA05005087A (es) | 2005-07-01 |
| WO2004080083A1 (ja) | 2004-09-16 |
| EP1601207A1 (en) | 2005-11-30 |
| CA2507825A1 (en) | 2004-09-16 |
| JP2010226743A (ja) | 2010-10-07 |
| CN1757239A (zh) | 2006-04-05 |
| EP1601207B1 (en) | 2012-01-18 |
| EP2306728A3 (en) | 2011-08-31 |
| CN101765017B (zh) | 2013-09-18 |
| EP2306728A2 (en) | 2011-04-06 |
| EP2306728B1 (en) | 2016-09-21 |
| US8194731B2 (en) | 2012-06-05 |
| CN100589575C (zh) | 2010-02-10 |
| CA2507825C (en) | 2013-01-22 |
| BRPI0406424B1 (pt) | 2018-11-21 |
| CN101771881A (zh) | 2010-07-07 |
| US20080063050A1 (en) | 2008-03-13 |
| CN101771881B (zh) | 2012-08-29 |
| CN101765017A (zh) | 2010-06-30 |
| AU2004218397B2 (en) | 2008-09-18 |
| AU2004218397A1 (en) | 2004-09-16 |
| ATE542371T1 (de) | 2012-02-15 |
| EP3122044A1 (en) | 2017-01-25 |
| EP1601207A4 (en) | 2007-10-24 |
| KR20050104333A (ko) | 2005-11-02 |
| ES2379265T3 (es) | 2012-04-24 |
| KR100996043B1 (ko) | 2010-11-22 |
| US20060018377A1 (en) | 2006-01-26 |
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