ES2109246T3 - Metodo de codificacion para aumentar la eficacia de compresion de datos en la transmision o almacenamiento de señales de imagen. - Google Patents
Metodo de codificacion para aumentar la eficacia de compresion de datos en la transmision o almacenamiento de señales de imagen.Info
- Publication number
- ES2109246T3 ES2109246T3 ES91113202T ES91113202T ES2109246T3 ES 2109246 T3 ES2109246 T3 ES 2109246T3 ES 91113202 T ES91113202 T ES 91113202T ES 91113202 T ES91113202 T ES 91113202T ES 2109246 T3 ES2109246 T3 ES 2109246T3
- Authority
- ES
- Spain
- Prior art keywords
- coefficients
- transmission
- image signals
- storage
- increase
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/42—Flyback transformers
-
- 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
- H04N19/18—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 set of transform coefficients
-
- 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
- H04N19/10—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
- H04N19/90—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)
- Power Engineering (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Image Processing (AREA)
Abstract
SE DESCRIBE UN METODO PARA INCREMENTAR LA EFICACIA DE COMPRENSION DE LA TRANSMISION O ALMACENAMIENTO DE SEÑALES DE IMAGENES DE VIDEO. EL DISPOSITIVO PARA LLEVAR A CABO EL METODO DE CODIFICACION INCLUYE UNA UCP (10), UN ROM (20) UN RAM (30) Y UNA SECCION DE ESCANEO POR ZIG-ZAG. LA UTILIZACION DEL METODO IMPLICA PRIMERO LA EJECUCION DE LOS CAMPOS, UN CONTADOR Y UN NUMERO COEFICIENTE SON INICIALIZADOS. A CONTINUACION, EL COEFICIENTE AC SON ZIG-ZAG ESCANEADOS Y LOS COEFICIENTES AC SON COMPROBADOS PARA VER SI SON 0 O NO. SI EL COEFICIENTE AC ES CERO, LOS CAMPOS EJECUTADOS Y EL CONTADOR SON INCREMENTADOS EN 1, Y LOS COEFICIENTES NO CERO SON AGRUPADOS CONJUNTAMENTE. LOS COEFICIENTES NO CERO SON CODIFICADOS Y UN CODIGO EONZ ES INICIADO PARA INDICAR LA FINALIZACION DE LA CODIFICACION DE LOS COEFICIENTES NO CERO. A CONTINUACION, LOS COEFICIENTES EJECUTADOS DE LA TABLA DE CODIFICACION SE HACE MAS PEQUEÑA, LA LONGITUD MEDIA DE LOS CODIGO PALABRAS PUEDEN ACORTARSE Y LA CODIFICACION Y DECODIFICACION SE PUEDE LLEVAR A CABO DE UNA FORMA SIMPLE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900013673A KR930003964B1 (ko) | 1990-08-31 | 1990-08-31 | 화상신호의 전송 및 저장시 데이타의 감축 효율을 높이기 위한 부호화방식 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2109246T3 true ES2109246T3 (es) | 1998-01-16 |
Family
ID=19303027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91113202T Expired - Lifetime ES2109246T3 (es) | 1990-08-31 | 1991-08-06 | Metodo de codificacion para aumentar la eficacia de compresion de datos en la transmision o almacenamiento de señales de imagen. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0472961B1 (es) |
JP (1) | JPH0622143A (es) |
KR (1) | KR930003964B1 (es) |
DE (1) | DE69128269T2 (es) |
ES (1) | ES2109246T3 (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6336180B1 (en) | 1997-04-30 | 2002-01-01 | Canon Kabushiki Kaisha | Method, apparatus and system for managing virtual memory with virtual-physical mapping |
US5295203A (en) * | 1992-03-26 | 1994-03-15 | General Instrument Corporation | Method and apparatus for vector coding of video transform coefficients |
JP3205200B2 (ja) * | 1994-12-26 | 2001-09-04 | 本田技研工業株式会社 | キックアイドルギア軸受部のオイル供給孔閉塞構造 |
KR100439419B1 (ko) * | 1996-09-30 | 2004-08-31 | 주식회사 팬택앤큐리텔 | 물체모양정보부호화에서교류(ac)계수예측부호화방법 |
AUPO648397A0 (en) | 1997-04-30 | 1997-05-22 | Canon Information Systems Research Australia Pty Ltd | Improvements in multiprocessor architecture operation |
US6311258B1 (en) | 1997-04-03 | 2001-10-30 | Canon Kabushiki Kaisha | Data buffer apparatus and method for storing graphical data using data encoders and decoders |
US6272257B1 (en) | 1997-04-30 | 2001-08-07 | Canon Kabushiki Kaisha | Decoder of variable length codes |
US6707463B1 (en) | 1997-04-30 | 2004-03-16 | Canon Kabushiki Kaisha | Data normalization technique |
US6259456B1 (en) | 1997-04-30 | 2001-07-10 | Canon Kabushiki Kaisha | Data normalization techniques |
AUPO647997A0 (en) | 1997-04-30 | 1997-05-22 | Canon Information Systems Research Australia Pty Ltd | Memory controller architecture |
CN114222139A (zh) * | 2016-05-28 | 2022-03-22 | 世宗大学校产学协力团 | 视频信号的解码方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4302775A (en) * | 1978-12-15 | 1981-11-24 | Compression Labs, Inc. | Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback |
US4394774A (en) * | 1978-12-15 | 1983-07-19 | Compression Labs, Inc. | Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback |
US4774574A (en) * | 1987-06-02 | 1988-09-27 | Eastman Kodak Company | Adaptive block transform image coding method and apparatus |
US5184229A (en) * | 1988-12-09 | 1993-02-02 | Fuji Photo Film Co., Ltd. | Compression coding device and expansion decoding device for picture signal |
FR2648978B2 (fr) * | 1988-12-16 | 1995-01-06 | Thomson Csf | Procede de codage d'une suite d'images, par une transformation et une pluralite de codes a longueur variable, et dispositifs pour la mise en oeuvre de ce procede |
-
1990
- 1990-08-31 KR KR1019900013673A patent/KR930003964B1/ko not_active IP Right Cessation
-
1991
- 1991-08-05 JP JP3195546A patent/JPH0622143A/ja active Pending
- 1991-08-06 DE DE69128269T patent/DE69128269T2/de not_active Expired - Lifetime
- 1991-08-06 ES ES91113202T patent/ES2109246T3/es not_active Expired - Lifetime
- 1991-08-06 EP EP91113202A patent/EP0472961B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0472961B1 (en) | 1997-11-26 |
DE69128269T2 (de) | 1998-04-09 |
KR920005640A (ko) | 1992-03-28 |
DE69128269D1 (de) | 1998-01-08 |
JPH0622143A (ja) | 1994-01-28 |
EP0472961A2 (en) | 1992-03-04 |
EP0472961A3 (en) | 1993-10-20 |
KR930003964B1 (ko) | 1993-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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