ES2127350T3 - Dispositivo de transcodificacion. - Google Patents

Dispositivo de transcodificacion.

Info

Publication number
ES2127350T3
ES2127350T3 ES94202246T ES94202246T ES2127350T3 ES 2127350 T3 ES2127350 T3 ES 2127350T3 ES 94202246 T ES94202246 T ES 94202246T ES 94202246 T ES94202246 T ES 94202246T ES 2127350 T3 ES2127350 T3 ES 2127350T3
Authority
ES
Spain
Prior art keywords
encoder
decoder
data signal
compressed video
decoding
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
ES94202246T
Other languages
English (en)
Inventor
Dolf Albert Schinkel
Arian Koster
Johannes Fransiscus Koppelmans
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.)
Koninklijke KPN NV
Original Assignee
Koninklijke KPN NV
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 Koninklijke KPN NV filed Critical Koninklijke KPN NV
Application granted granted Critical
Publication of ES2127350T3 publication Critical patent/ES2127350T3/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
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
    • 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
    • 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
    • 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
    • H04N19/162—User input
    • 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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • 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
    • H04N19/60—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
    • 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

Abstract

TRANSCODIFICADORES CONOCIDOS PARA SEÑALES DE VIDEO COMPRIMIDAS COMPRENDEN UN DECODIFICADOR Y UN CODIFICADOR ACOPLADO A EL, ENTRE LOS CUALES ES TRANSMITIDA UNA SEÑAL DE DATOS. A CAUSA DE LAS SEÑALES DE VIDEO COMPRIMIDAS COMPRENDE, ASI DENOMINADAS, IMAGENES DE DIFERENCIA E IMAGENES NORMALES, AMBOS EL DECODIFICADOR Y EL CODIFICADOR DEBEN TENER UN BUCLE DE RE-ALIMENTACION QUE ES UTILIZADO EN DECODIFICAR Y CODIFICAR UNA IMAGEN DE DIFERENCIA Y NO ES UTILIZADO PARA DECODIFICAR Y CODIFICAR UNA IMAGEN NORMAL. POR EJEMPLO, PARA EL PROPOSITO DE MEDIOS DE PREDICCION (COMPENSACION DE MOVIMIENTO Y ESTIMACION DE MOVIMIENTO) PRESENTES EN EL BUCLE DE RE-ALIMENTACION DEL CODIFICADOR, MUCHO CALCULO AUTOMATICO TIENE QUE SER REALIZADO EN EL CODIFICADOR. EL CALCULO REQUERIDO ES CONSIDERABLEMENTE REDUCIDO TRANSMITIENDO CONCOMITANTEMENTE UNA O MAS SEÑALES DE INFORMACION EN ADICION A LA SEÑAL DE DATOS EN UN TRANSCODIFICADOR DE ACUERDO A LA INVENCION, Y TIENEN LUGAR DECODIFICACION COMPLETA Y CODIFICACION COMPLETA NOTAN LARGA.
ES94202246T 1993-08-04 1994-08-03 Dispositivo de transcodificacion. Expired - Lifetime ES2127350T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9301358A NL9301358A (nl) 1993-08-04 1993-08-04 Transcodeerinrichting.

Publications (1)

Publication Number Publication Date
ES2127350T3 true ES2127350T3 (es) 1999-04-16

Family

ID=19862729

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94202246T Expired - Lifetime ES2127350T3 (es) 1993-08-04 1994-08-03 Dispositivo de transcodificacion.

Country Status (15)

Country Link
US (1) US5544266A (es)
EP (1) EP0637893B1 (es)
JP (1) JP2860880B2 (es)
KR (1) KR0127094B1 (es)
CN (1) CN1056489C (es)
AT (1) ATE174178T1 (es)
AU (1) AU672507B2 (es)
CA (1) CA2128793C (es)
DE (1) DE69414931T2 (es)
DK (1) DK0637893T3 (es)
ES (1) ES2127350T3 (es)
FI (1) FI112146B (es)
GR (1) GR3029529T3 (es)
NL (1) NL9301358A (es)
NO (1) NO308569B1 (es)

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Also Published As

Publication number Publication date
AU6880594A (en) 1995-02-16
CN1111878A (zh) 1995-11-15
CA2128793A1 (en) 1995-02-05
DE69414931T2 (de) 1999-07-08
JPH0795090A (ja) 1995-04-07
GR3029529T3 (en) 1999-06-30
JP2860880B2 (ja) 1999-02-24
NO942866L (no) 1995-02-06
DK0637893T3 (da) 1999-08-16
CN1056489C (zh) 2000-09-13
EP0637893A1 (en) 1995-02-08
KR0127094B1 (ko) 1997-12-29
FI112146B (fi) 2003-10-31
FI943622A (fi) 1995-02-05
EP0637893B1 (en) 1998-12-02
AU672507B2 (en) 1996-10-03
CA2128793C (en) 1998-07-14
NO308569B1 (no) 2000-09-25
US5544266A (en) 1996-08-06
ATE174178T1 (de) 1998-12-15
KR950006612A (ko) 1995-03-21
DE69414931D1 (de) 1999-01-14
FI943622A0 (fi) 1994-08-04
NO942866D0 (es) 1994-08-02
NL9301358A (nl) 1995-03-01

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