ES2191212T3 - Metodo de codificacion y descodificacion con ruido bajo. - Google Patents

Metodo de codificacion y descodificacion con ruido bajo.

Info

Publication number
ES2191212T3
ES2191212T3 ES97954261T ES97954261T ES2191212T3 ES 2191212 T3 ES2191212 T3 ES 2191212T3 ES 97954261 T ES97954261 T ES 97954261T ES 97954261 T ES97954261 T ES 97954261T ES 2191212 T3 ES2191212 T3 ES 2191212T3
Authority
ES
Spain
Prior art keywords
signal
generate
lower resolution
video
format
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
ES97954261T
Other languages
English (en)
Inventor
Haoping Yu
David Lowell Mcneely
Billy Wesley Beyers Jr
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Priority claimed from EP97954261A external-priority patent/EP1040666B1/en
Application granted granted Critical
Publication of ES2191212T3 publication Critical patent/ES2191212T3/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
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4084—Scaling of whole images or parts thereof, e.g. expanding or contracting in the transform domain, e.g. fast Fourier transform [FFT] domain scaling
    • 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
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Color Television Systems (AREA)
  • Picture Signal Circuits (AREA)

Abstract

Un método para el tratamiento de una primera y una segunda señales de video que presentan un primer y un segundo formatos de imagen diferentes, respectivamente, que comprende la operación de detectar la presencia de dichas primera o segunda señales de video, y que comprende adicionalmente las operaciones de: A. Cuando se detecta dicha primera señal de video, (a) convertir dicha primera señal de video a un formato diferente, para generar una señal convertida; (b) filtrar dicha señal convertida para generar una señal filtrada; (c) reconvertir dicha señal filtrada al formato original de dicha primera señal, para generar una señal reconvertida; (d) convertir dicha señal reconvertida a un formato de resolución inferior para generar una señal de resolución inferior; (e) codificar dicha señal de resolución inferior para generar una señal codificada; y (f) transferir dicha señal codificada a un canal de salida; y B. cuando se detecta dicha segunda señal de video, (g) filtrar dicha segunda señal devideo para generar una señal filtrada; (h) convertir dicha señal filtrada a un formato de resolución inferior para generar una señal de resolución inferior; (i) codificar dicha señal de resolución inferior para generar una señal codificada; y (j) transferir dicha señal codificada a un canal de salida.
ES97954261T 1997-12-23 1997-12-23 Metodo de codificacion y descodificacion con ruido bajo. Expired - Lifetime ES2191212T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97954261A EP1040666B1 (en) 1997-12-23 1997-12-23 Low noise encoding and decoding method

Publications (1)

Publication Number Publication Date
ES2191212T3 true ES2191212T3 (es) 2003-09-01

Family

ID=8231222

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97954261T Expired - Lifetime ES2191212T3 (es) 1997-12-23 1997-12-23 Metodo de codificacion y descodificacion con ruido bajo.

Country Status (2)

Country Link
EP (1) EP1239679A3 (es)
ES (1) ES2191212T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837826A1 (en) * 2006-03-20 2007-09-26 Matsushita Electric Industrial Co., Ltd. Image acquisition considering super-resolution post-interpolation
US8369417B2 (en) 2006-05-19 2013-02-05 The Hong Kong University Of Science And Technology Optimal denoising for video coding
US8831111B2 (en) 2006-05-19 2014-09-09 The Hong Kong University Of Science And Technology Decoding with embedded denoising
TWI367457B (en) * 2006-07-03 2012-07-01 Nippon Telegraph & Telephone Image processing method and apparatus, image processing program, and storage medium for storing the program
CA2673091C (en) * 2006-12-28 2014-03-04 Nippon Telegraph And Telephone Corporation Video processing method and apparatus, video processing program, and storage medium which stores the program

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125606A1 (de) * 1991-08-02 1993-02-04 Rohde & Schwarz Verfahren zum uebertragen von digitalen hdtv-signalen
US5253059A (en) * 1992-05-15 1993-10-12 Bell Communications Research, Inc. Method and circuit for adjusting the size of a video frame
US5530484A (en) * 1995-05-19 1996-06-25 Thomson Multimedia S.A Image scanning format converter suitable for a high definition television system

Also Published As

Publication number Publication date
EP1239679A3 (en) 2002-10-02
EP1239679A2 (en) 2002-09-11

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