MX2009006404A - Compresion y descompresion de imagen. - Google Patents

Compresion y descompresion de imagen.

Info

Publication number
MX2009006404A
MX2009006404A MX2009006404A MX2009006404A MX2009006404A MX 2009006404 A MX2009006404 A MX 2009006404A MX 2009006404 A MX2009006404 A MX 2009006404A MX 2009006404 A MX2009006404 A MX 2009006404A MX 2009006404 A MX2009006404 A MX 2009006404A
Authority
MX
Mexico
Prior art keywords
image
pixels
clusters
decompression
cluster
Prior art date
Application number
MX2009006404A
Other languages
English (en)
Inventor
Stijn De Waele
Fei Zuo
Wilhelmus H A Bruls
Karel J G Hinnen
Michael J Verberne
Original Assignee
Koninkl Philips Electronics 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2009006404A publication Critical patent/MX2009006404A/es

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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image 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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/179—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 scene or a shot
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/187—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 scalable video layer
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

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)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La presente invención se refiere a grupos de pixeles que son definidos para uso en la compresión y descompresión de imagen. La información de imagen usada para definir los grupos puede incluir valores de pixel en posiciones predeterminadas con relación a un pixel o relacionadas con vectores de movimiento, gradientes, textura, etc. Durante la compresión de imágenes, la información de imagen con relación a los pixeles se examina para determinar el grupo al cual pertenece. Por consiguiente, los pixeles se pueden clasificar de acuerdo con el grupo para su información de imagen. En una modalidad, las definiciones de los grupos se seleccionan dinámicamente, dependiendo del contenido de imagen. Para cada grupo, se computa un conjunto de parámetro de control para una operación de post-procesamiento, tales como coeficientes de filtro para filtración o datos estadísticos como coeficientes de filtro para filtración o datos estadísticos para general localmente textura. El conjunto de parámetro de control se selecciona dependiendo del contenido de imagen de modo que, cuando la operación de post-procesamiento se aplica a la imagen después de la descompresián mejorará a calidad de imagen para los pixeles que se clasifican como pertenecientes al grupo. La imagen comprimida y los conjuntos de parámetro de control son transmitidos a un aparato de descompresión. En la descompresión, la información de imagen que representa la imagen descomprimida se examina para clasificar pixeles de acuerdo con los grupos y los diferentes conjuntos de parámetro de control para los grupos seleccionados se usan para controlar el post-procesamiento en las ubicaciones de los pixeles.
MX2009006404A 2006-12-18 2007-12-11 Compresion y descompresion de imagen. MX2009006404A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06126324 2006-12-18
PCT/IB2007/055011 WO2008075247A1 (en) 2006-12-18 2007-12-11 Image compression and decompression

Publications (1)

Publication Number Publication Date
MX2009006404A true MX2009006404A (es) 2009-06-23

Family

ID=39400417

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009006404A MX2009006404A (es) 2006-12-18 2007-12-11 Compresion y descompresion de imagen.

Country Status (12)

Country Link
US (2) US8582666B2 (es)
EP (1) EP2123051B1 (es)
JP (1) JP2010514246A (es)
KR (1) KR101545005B1 (es)
CN (1) CN101563926B (es)
AT (1) ATE488096T1 (es)
DE (1) DE602007010514D1 (es)
ES (1) ES2356023T3 (es)
MX (1) MX2009006404A (es)
PL (1) PL2123051T3 (es)
RU (1) RU2461977C2 (es)
WO (1) WO2008075247A1 (es)

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