JPH02504693A - 可変長コードにより符号化された一連の画像の、非同期チャネルでの伝送のための同期方法および、この方法の実施のための装置 - Google Patents
可変長コードにより符号化された一連の画像の、非同期チャネルでの伝送のための同期方法および、この方法の実施のための装置Info
- Publication number
- JPH02504693A JPH02504693A JP1501055A JP50105589A JPH02504693A JP H02504693 A JPH02504693 A JP H02504693A JP 1501055 A JP1501055 A JP 1501055A JP 50105589 A JP50105589 A JP 50105589A JP H02504693 A JPH02504693 A JP H02504693A
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- JP
- Japan
- Prior art keywords
- block
- data
- image
- separation
- memory
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/04—Colour television systems using pulse code modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/04—Colour television systems using pulse code modulation
- H04N11/042—Codec means
- H04N11/044—Codec means involving transform coding
-
- 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
- H04N19/115—Selection of the code volume for a coding unit prior to coding
-
- 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
- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
-
- 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
- H04N19/176—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 block, e.g. a macroblock
-
- 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
-
- 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
-
- 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
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
-
- 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]
-
- 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
- H04N19/146—Data rate or code amount at the encoder output
-
- 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
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Time-Division Multiplex Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Facsimile Transmission Control (AREA)
- Communication Control (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (6)
- 1.可変長コードにより符号化された一連の画像の、非同期チャネルでの伝送の ための同期方法において、データに加え、画素の個別のブロックに対応するデー タを分離するためのブロック間分離部と呼ばれる分離部と、後続の画像に対応す るデータを分離するための画像分離部と呼ばれる分離部を伝送することおよび、 データおよび分離部の伝送に割り込みながら、画像線周波数で第1の同期パター ンを伝送し、画信号周波数で第2の同期パターンを伝送し、このとき分離部はデ ータおよび/または分離部の正当な連結によって模倣されないものであることを 特徴とする、可変長コードにより符号化された一連の画像の、非同期チャネルで の伝送のための同期方法。
- 2.請求項1記載の方法において、各画像分離部は、数回繰り返され、固定基数 に続き、繰り返しにおける分離部のランクを指示する2進ワード、モジュロ固定 数から成ることを特徴とする方法。
- 3.請求項1記載の方法において、各ブロック間分離部は、固定基数および、そ の分離部に関係する画素のブロックのランクのモジュロ固定数を表す2進ワード から成り、さらにそのランクとこの分離部に関係するブロックに対応するデータ によって符号化されている事象の数の和のモジュロ固定数を表す2進ワードから 成ることを特徴とする方法。
- 4.請求項1記載の方法を実施するための、可変長コードにより符号化された一 連の画像の、非同期チャネルでの伝送のための同期装置において、ブロック間分 離部と呼ばれる2の別個の画素ブロックに対応する伝送データの2のパケットの 間に分離部を挿入し、画像分離部と呼ばれる2の後続する画像に対応する伝送デ ータの2のパケットの間に分離部を挿入するものであって、このとき分離部はデ ータの正当な連結によって模倣できないようなものであるものを挿入する手段( 10)と、 データおよび分離部の伝送に割り込みをかけ、それぞれ、画信号周波数および画 像線周波数で同期パターンを挿入する挿入する手段(13)と、 伝送されたデータのうちから、画像分離部とブロック間分離部を認識し、各画素 ブロックに対応するデータを分離する手段(65,66)と、 伝送されたデータのうちから、同期パターンを認識し、画信号周波数のクロック 信号および線周波数のクロック信号を回復させる手段(67,68)とから成る ことを特徴とする装置。
- 5.請求項4記載の装置において、画像分離部を挿入する手段(10)は、各画 像分離部を数回繰り返すものであって、固定基数から成り、その基数に綴り返し における当該分離部のランクを指示する2進ワード、モジュロ固定数を後続させ ることを特徴とし、また画像分離部を認識する手段(66)は、データの連続に おける画像分離部の位置を、認識された各基数の位置から、および認識された各 基数に伴う2進ワードの値の関数として決定することを特徴とする装置。
- 6.請求項4記載の装置において、ブロック間分離部を挿入する手段(10)は 、各ブロック間分離部を、固定基数、続けて当該分離部に関係する画素のブロッ クのランクのモジュロ固定数を表す第1の2進ワード、さらにその後の当該ラン クと当該分離部に関係するブロックに対応するデータによって符号化されている 事象の数の和のモジュロ固定数を表す第2の2進ワードから構成させる手段であ ることを特徴とし、またブロック間分離部を認識する手段(65)は、認識され たブロック間分離部のランクが当該分離部に続く第1の2進ワードの値に一致す るかどうか、および認識された分離部のランクと当該分離部に関係するブロック に対応するデータによって符号化されている事象の数の当該分離部に続く第2の 2進ワードの値に一致するかどうかを検査する手段であることを特徴とする装置 。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR878718372A FR2625638B1 (fr) | 1987-12-30 | 1987-12-30 | Procede de synchronisation pour la transmission, sur un canal asynchrone, d'une suite d'images codees au moyen d'un code a longueur variable, et dispositif pour la mise en oeuvre de ce procede |
FR87/18372 | 1987-12-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02504693A true JPH02504693A (ja) | 1990-12-27 |
JP2672382B2 JP2672382B2 (ja) | 1997-11-05 |
Family
ID=9358443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1501055A Expired - Lifetime JP2672382B2 (ja) | 1987-12-30 | 1988-12-30 | 可変長コードにより符号化された一連の画像の、非同期チャネルでの伝送のための同期方法および、この方法の実施のための装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US5036391A (ja) |
EP (1) | EP0323363B1 (ja) |
JP (1) | JP2672382B2 (ja) |
KR (1) | KR970003478B1 (ja) |
AT (1) | ATE81575T1 (ja) |
DE (1) | DE3875334T2 (ja) |
ES (1) | ES2035353T3 (ja) |
FR (1) | FR2625638B1 (ja) |
WO (1) | WO1989006471A1 (ja) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6563875B2 (en) * | 1987-12-30 | 2003-05-13 | Thomson Licensing S.A. | Adaptive method of encoding and decoding a series of pictures by transformation, and devices for implementing this method |
FR2653953A1 (fr) * | 1989-10-27 | 1991-05-03 | Philips Electronique Lab | Dispositif de codage comportant un codeur a mots de longueur variable et dispositif de decodage associe. |
GB8929152D0 (en) * | 1989-12-22 | 1990-02-28 | Gen Electric | A digital augmentation system for actv-ii |
FR2656754A1 (fr) * | 1989-12-29 | 1991-07-05 | Philips Electronique Lab | Systeme de codage de signaux numeriques destines a etre transmis et/ou stockes. |
EP0436251B1 (fr) * | 1989-12-29 | 1995-09-27 | Laboratoires D'electronique Philips | Système de codage de signaux numériques destinés à être transmis et/ou stockés et système de décodage correspondant |
NL9000424A (nl) * | 1990-02-22 | 1991-09-16 | Philips Nv | Overdrachtsysteem voor gedigitaliseerde televisiebeelden. |
BE1003827A4 (fr) * | 1990-02-26 | 1992-06-23 | Alcatel Bell Sdt Sa | Procede universel de codage de signaux d'image. |
DE69133401T2 (de) * | 1990-03-16 | 2005-01-13 | Fujitsu Ltd., Kawasaki | System zur Verarbeitung von Bilddaten |
DE4028731A1 (de) * | 1990-09-10 | 1992-03-19 | Thomson Brandt Gmbh | Digitales uebertragungs- und/oder aufzeichnungssystem fuer komponentencodierte farbfernsehsignale |
US5303058A (en) * | 1990-10-22 | 1994-04-12 | Fujitsu Limited | Data processing apparatus for compressing and reconstructing image data |
EP0498081B1 (en) * | 1991-01-21 | 1996-09-04 | Koninklijke Philips Electronics N.V. | Video coder/decoder with shift prevention for correctly decoded signal blocks |
EP1995964B1 (en) * | 1991-04-10 | 2011-06-08 | Mitsubishi Denki Kabushiki Kaisha | Decoding variable-length encoded data |
US5262964A (en) * | 1991-04-10 | 1993-11-16 | International Business Machines Corporation | Method and apparatus for variable playback speed of multimedia data interchange within a data processing system |
US5260808A (en) * | 1991-04-23 | 1993-11-09 | Canon Kabushiki Kaisha | Image processing apparatus |
JPH04323960A (ja) * | 1991-04-23 | 1992-11-13 | Canon Inc | 画像符号化装置 |
JPH04323963A (ja) * | 1991-04-23 | 1992-11-13 | Canon Inc | 画像処理方法及び装置 |
US5414527A (en) * | 1991-08-14 | 1995-05-09 | Fuji Xerox Co., Ltd. | Image encoding apparatus sensitive to tone variations |
JP3513160B2 (ja) * | 1991-12-06 | 2004-03-31 | キヤノン株式会社 | 動画像信号符号化装置及びその方法 |
GB2264603B (en) * | 1992-02-28 | 1995-08-23 | Sony Broadcast & Communication | Multiplexing and demultiplexing image data |
US5287178A (en) * | 1992-07-06 | 1994-02-15 | General Electric Company | Reset control network for a video signal encoder |
JP3381077B2 (ja) * | 1992-12-04 | 2003-02-24 | ソニー株式会社 | 動画像復号装置 |
US7075991B1 (en) * | 1993-01-18 | 2006-07-11 | Sony Corporation | Apparatus for encoding and decoding header data in picture signal transmission |
US7558324B2 (en) * | 1993-01-18 | 2009-07-07 | Sony Corporation | Apparatus for encoding and decoding header data in picture signal transmission |
DE69327040T2 (de) * | 1993-02-22 | 2000-04-13 | Industrial Technology Research Institute, Chutung | Blockübereinstimmungsarchitektur mit mehreren Modulen |
JP3163880B2 (ja) * | 1993-12-16 | 2001-05-08 | 松下電器産業株式会社 | 画像圧縮符号化装置 |
JP3058028B2 (ja) * | 1994-10-31 | 2000-07-04 | 三菱電機株式会社 | 画像符号化データ再符号化装置 |
US5543853A (en) * | 1995-01-19 | 1996-08-06 | At&T Corp. | Encoder/decoder buffer control for variable bit-rate channel |
EP0861001B1 (en) * | 1997-02-07 | 2012-05-23 | Texas Instruments Incorporated | Error resilient video encoding |
US7042942B2 (en) * | 2001-12-21 | 2006-05-09 | Intel Corporation | Zigzag in-order for image/video encoder and decoder |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3553362A (en) * | 1969-04-30 | 1971-01-05 | Bell Telephone Labor Inc | Conditional replenishment video system with run length coding of position |
CA1197005A (en) * | 1981-09-29 | 1985-11-19 | Norio Suzuki | System comprising a preliminary processing device controlled in accordance with an amount of information stored in a buffer |
US4541012A (en) * | 1982-01-04 | 1985-09-10 | Compression Labs, Inc. | Video bandwidth reduction system employing interframe block differencing and transform domain coding |
DE3366804D1 (en) * | 1982-07-23 | 1986-11-13 | British Telecomm | Improvements relating to data transmission |
FR2553954B1 (fr) * | 1983-10-21 | 1990-04-20 | Telecommunications Sa | Systeme de reception d'informations asynchrones transmises en mode synchrone |
JPH0620303B2 (ja) * | 1984-11-08 | 1994-03-16 | 日本電信電話株式会社 | フレ−ム間符号化方式におけるリフレッシュ処理方式 |
FR2575351B1 (fr) * | 1984-12-21 | 1988-05-13 | Thomson Csf | Procede adaptatif de codage et de decodage d'une suite d'images par transformation, et dispositifs pour la mise en oeuvre de ce procede |
-
1987
- 1987-12-30 FR FR878718372A patent/FR2625638B1/fr not_active Expired - Lifetime
-
1988
- 1988-12-30 WO PCT/FR1988/000650 patent/WO1989006471A1/fr unknown
- 1988-12-30 AT AT88403375T patent/ATE81575T1/de active
- 1988-12-30 KR KR1019890701638A patent/KR970003478B1/ko not_active IP Right Cessation
- 1988-12-30 EP EP88403375A patent/EP0323363B1/fr not_active Expired - Lifetime
- 1988-12-30 US US07/408,510 patent/US5036391A/en not_active Expired - Lifetime
- 1988-12-30 ES ES198888403375T patent/ES2035353T3/es not_active Expired - Lifetime
- 1988-12-30 JP JP1501055A patent/JP2672382B2/ja not_active Expired - Lifetime
- 1988-12-30 DE DE8888403375T patent/DE3875334T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR970003478B1 (ko) | 1997-03-18 |
EP0323363B1 (fr) | 1992-10-14 |
WO1989006471A1 (fr) | 1989-07-13 |
JP2672382B2 (ja) | 1997-11-05 |
FR2625638A1 (fr) | 1989-07-07 |
US5036391A (en) | 1991-07-30 |
ATE81575T1 (de) | 1992-10-15 |
DE3875334T2 (de) | 1993-03-04 |
EP0323363A1 (fr) | 1989-07-05 |
ES2035353T3 (es) | 1993-04-16 |
DE3875334D1 (de) | 1992-11-19 |
KR900701127A (ko) | 1990-08-17 |
FR2625638B1 (fr) | 1994-06-17 |
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