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
Application number
ES91914837T
Other languages
English (en)
Inventor
Heinz-Werner Keesen
Edgar Peters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Application granted granted Critical
Publication of ES2085483T3 publication Critical patent/ES2085483T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
ES91914837T 1990-08-22 1991-08-16 Procedimiento y dispositivo para transformacion de datos de imagen. Expired - Lifetime ES2085483T3 (es)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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