ES2085483T3 - Procedimiento y dispositivo para transformacion de datos de imagen. - Google Patents
Procedimiento y dispositivo para transformacion de datos de imagen.Info
- Publication number
- ES2085483T3 ES2085483T3 ES91914837T ES91914837T ES2085483T3 ES 2085483 T3 ES2085483 T3 ES 2085483T3 ES 91914837 T ES91914837 T ES 91914837T ES 91914837 T ES91914837 T ES 91914837T ES 2085483 T3 ES2085483 T3 ES 2085483T3
- Authority
- ES
- Spain
- Prior art keywords
- dct
- image content
- transformation
- image data
- case
- 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
- 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
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
-
- 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
- H04N19/112—Selection of coding mode or of prediction mode according to a given display mode, e.g. for interlaced or progressive display mode
-
- 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
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
CUANDO LOS BLOQUES DE DATOS DE IMAGEN EN FORMATO DE LINEA INTERMEDIA SUFREN TRANSFORMACIONES DISCRETAS DE COSENO (DCT), SE OBTIENE UNA EFECTIVIDAD DE CODIFICACION MENOS FAVORABLE EN EL CASO DE UN CONTENIDO DE IMAGEN DINAMICA. PARA ELLO SE PROPONE CONECTAR ENTRE UN 8*8 DCT Y UN 2* (4*8) DCT, POR EJEMPLO, EN ADAPTACION DEL MOVIMIENTO. SIN EMBARGO, ESTO LLEVA CONSIGO MAYORES GASTOS, PORQUE SE REALIZA EN DOS TRANSFORMACIONES DIFERENTES DCT. SI, EN EL CASO DE UN CONTENIDO DE IMAGEN DINAMICA, EL BLOQUE QUE HA SIDO TRANSFORMADO EN DCT PARA UN CONTENIDO DE IMAGEN ESTATICA ESTA MULTIPLICADO POR MEDIO DE UNA MATRIZ ESPECIAL EN LUGAR DE UNA TRANSFORMACION CONSECUENTE DCT, SE MANTIENE BUENA EFECTIVIDAD DE CODIFICACION Y EL COSTE DE REALIZACION DEL PROCESO DE IMAGEN DE DATOS ES BAJO. APLICACION EN VIDEO REPRODUCTORES DIGITALES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4026523A DE4026523A1 (de) | 1990-08-22 | 1990-08-22 | Verfahren und vorrichtung zur bilddaten-transformation |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2085483T3 true ES2085483T3 (es) | 1996-06-01 |
Family
ID=6412675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91914837T Expired - Lifetime ES2085483T3 (es) | 1990-08-22 | 1991-08-16 | Procedimiento y dispositivo para transformacion de datos de imagen. |
Country Status (8)
Country | Link |
---|---|
US (1) | US5353060A (es) |
EP (1) | EP0544735B1 (es) |
JP (1) | JP3359633B2 (es) |
KR (1) | KR100212019B1 (es) |
DE (2) | DE4026523A1 (es) |
ES (1) | ES2085483T3 (es) |
HK (1) | HK65997A (es) |
WO (1) | WO1992003889A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100255528B1 (ko) * | 1991-10-31 | 2000-05-01 | 요트.게.아. 롤페즈 | 디지탈 텔레비젼 영상을 송신기에서 수신기로 송신하기 위한 텔레비젼 시스템 |
US5510840A (en) * | 1991-12-27 | 1996-04-23 | Sony Corporation | Methods and devices for encoding and decoding frame signals and recording medium therefor |
WO1993013626A1 (en) * | 1991-12-27 | 1993-07-08 | Sony Corporation | Image data coding method, image data decoding method, image data coding device, image data decoding device, and image recording medium |
JP2725544B2 (ja) * | 1992-11-12 | 1998-03-11 | 日本電気株式会社 | Dct及び逆dct演算装置並びにその演算方法 |
US5710835A (en) * | 1995-11-14 | 1998-01-20 | The Regents Of The University Of California, Office Of Technology Transfer | Storage and retrieval of large digital images |
US5986709A (en) * | 1996-11-18 | 1999-11-16 | Samsung Electronics Co., Ltd. | Adaptive lossy IDCT for multitasking environment |
DE19942709C2 (de) * | 1999-09-07 | 2001-09-27 | Mustek Systems Inc | Bildaufnahmevorrichtung für ein Bildverarbeitungssystem und Verfahren zum Auslesen von Bilddaten aus einer Bildaufnahmevorrichtung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1481633A (en) * | 1973-08-16 | 1977-08-03 | Matsushita Electric Ind Co Ltd | Automatic frequency control devices |
NL8601447A (nl) * | 1986-06-05 | 1988-01-04 | Philips Nv | Werkwijze en inrichting voor het opnemen en/of weergeven van videoinformatie in respektievelijk van een registratiedrager, en een registratiedrager verkregen volgens de werkwijze. |
DE3626916A1 (de) * | 1986-08-08 | 1988-02-11 | Thomson Brandt Gmbh | Verfahren zur uebertragung eines videosignales |
DE3642664A1 (de) * | 1986-10-01 | 1988-04-14 | Thomson Brandt Gmbh | Schaltung zur transformation |
NL8700565A (nl) * | 1987-03-10 | 1988-10-03 | Philips Nv | Televisiesysteem waarin aan een transformatiekodering onderworpen gedigitaliseerde beeldsignalen worden overgebracht van een kodeerstation naar een dekodeerstation. |
US5170264A (en) * | 1988-12-10 | 1992-12-08 | Fuji Photo Film Co., Ltd. | Compression coding device and expansion decoding device for a picture signal |
IT1234733B (it) * | 1989-07-20 | 1992-05-26 | Russo Paolo | Sistema di isolamento dalle vibrazioni esterne |
-
1990
- 1990-08-22 DE DE4026523A patent/DE4026523A1/de not_active Withdrawn
-
1991
- 1991-08-16 DE DE59107557T patent/DE59107557D1/de not_active Expired - Fee Related
- 1991-08-16 ES ES91914837T patent/ES2085483T3/es not_active Expired - Lifetime
- 1991-08-16 KR KR1019930700467A patent/KR100212019B1/ko not_active IP Right Cessation
- 1991-08-16 WO PCT/EP1991/001558 patent/WO1992003889A1/de active IP Right Grant
- 1991-08-16 JP JP51354691A patent/JP3359633B2/ja not_active Expired - Fee Related
- 1991-08-16 EP EP91914837A patent/EP0544735B1/de not_active Expired - Lifetime
-
1993
- 1993-04-13 US US08/029,250 patent/US5353060A/en not_active Expired - Lifetime
-
1997
- 1997-05-15 HK HK65997A patent/HK65997A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK65997A (en) | 1997-05-23 |
US5353060A (en) | 1994-10-04 |
DE59107557D1 (de) | 1996-04-18 |
JP3359633B2 (ja) | 2002-12-24 |
EP0544735B1 (de) | 1996-03-13 |
KR930701899A (ko) | 1993-06-12 |
JPH06500209A (ja) | 1994-01-06 |
EP0544735A1 (de) | 1993-06-09 |
WO1992003889A1 (de) | 1992-03-05 |
DE4026523A1 (de) | 1992-02-27 |
KR100212019B1 (ko) | 1999-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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