ES2188346B1 - Procedimiento de filtrado adaptativo a señales, filtro adaptativo a señales y medio legible por ordenador para almacenar un programa para el mismo. - Google Patents

Procedimiento de filtrado adaptativo a señales, filtro adaptativo a señales y medio legible por ordenador para almacenar un programa para el mismo.

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Publication number
ES2188346B1
ES2188346B1 ES200050002A ES200050002A ES2188346B1 ES 2188346 B1 ES2188346 B1 ES 2188346B1 ES 200050002 A ES200050002 A ES 200050002A ES 200050002 A ES200050002 A ES 200050002A ES 2188346 B1 ES2188346 B1 ES 2188346B1
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Spain
Prior art keywords
block
filter
adaptive
signal
store
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Expired - Fee Related
Application number
ES200050002A
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English (en)
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ES2188346A1 (es
Inventor
Yung Lyul Lee
Hyun Wook Park
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication of ES2188346A1 publication Critical patent/ES2188346A1/es
Application granted granted Critical
Publication of ES2188346B1 publication Critical patent/ES2188346B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G—PHYSICS
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    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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    • G06T5/10—Image enhancement or restoration using non-spatial domain filtering
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    • 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
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    • 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
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    • 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
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N7/30—
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    • G06T2207/00—Indexing scheme for image analysis or image enhancement
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    • G06T2207/20004—Adaptive image processing
    • G06T2207/20008—Globally adaptive

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Procedimiento de filtrado adaptativo a señales, filtro adaptativo a señales y medio legible por ordenador para almacenar un programa para el mismo. El procedimiento de filtrado adaptativo a señales capaz de reducir el efecto de bloque y el ruido de zumbido de datos de imagen cuando un marco está compuesto por bloques de un tamaño predeterminado, incluye las siguientes etapas: (a) generar información sobre el bloque para reducir el efecto de bloque e información sobre el zumbido para reducir el ruido de zumbido, a partir de coeficientes de pixeles predeterminados de las zonas de límite superior e izquierdo del bloque de datos cuando un marco obtenido por la descomposición de datos de imagen en cadena de bits para la cuantificación inversa es un intramarco; y (b) filtrar de forma adaptativa los datos de imagen que pasan por la cuantificación inversa y la transformada inversa discreta de coseno según la información que se genera sobre el bloque y el zumbido, de modo que pueden eliminarse el efecto de bloque y el ruido de zumbido de la imagen restaurada a partir de la imagen basada en bloques, mejorando así la imagen restaurada a partir de compresión.
ES200050002A 1997-07-16 1998-06-18 Procedimiento de filtrado adaptativo a señales, filtro adaptativo a señales y medio legible por ordenador para almacenar un programa para el mismo. Expired - Fee Related ES2188346B1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1997/33253 1997-07-16
KR1019970033253A KR100243225B1 (ko) 1997-07-16 1997-07-16 블록화효과 및 링잉잡음 감소를 위한 신호적응필터링방법 및신호적응필터

Publications (2)

Publication Number Publication Date
ES2188346A1 ES2188346A1 (es) 2003-06-16
ES2188346B1 true ES2188346B1 (es) 2004-06-16

Family

ID=19514754

Family Applications (5)

Application Number Title Priority Date Filing Date
ES200750005A Expired - Fee Related ES2328439B2 (es) 1997-07-16 1998-06-18 Procedimiento de filtrado de datos de imagen.
ES200350066A Expired - Fee Related ES2276555B2 (es) 1997-07-16 1998-06-18 Procedimiento de filtrado adaptativo de datos de imagen para reducir el efecto bloque y el ruido,y dispositivo de filtrado adaptativo correspondiente.
ES200050002A Expired - Fee Related ES2188346B1 (es) 1997-07-16 1998-06-18 Procedimiento de filtrado adaptativo a señales, filtro adaptativo a señales y medio legible por ordenador para almacenar un programa para el mismo.
ES200350065A Expired - Fee Related ES2276554B2 (es) 1997-07-16 2000-01-14 Procedimiento de filtrado adaptativo de datos de imagen para reducir el efecto bloque y el ruido dispositivo de filtrado adaptativo correspondiente.
ES200350077A Expired - Fee Related ES2277472B2 (es) 1997-07-16 2000-01-14 Procedimiento y dispositivo de filtrado adaptativo de datos de imagen.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
ES200750005A Expired - Fee Related ES2328439B2 (es) 1997-07-16 1998-06-18 Procedimiento de filtrado de datos de imagen.
ES200350066A Expired - Fee Related ES2276555B2 (es) 1997-07-16 1998-06-18 Procedimiento de filtrado adaptativo de datos de imagen para reducir el efecto bloque y el ruido,y dispositivo de filtrado adaptativo correspondiente.

Family Applications After (2)

Application Number Title Priority Date Filing Date
ES200350065A Expired - Fee Related ES2276554B2 (es) 1997-07-16 2000-01-14 Procedimiento de filtrado adaptativo de datos de imagen para reducir el efecto bloque y el ruido dispositivo de filtrado adaptativo correspondiente.
ES200350077A Expired - Fee Related ES2277472B2 (es) 1997-07-16 2000-01-14 Procedimiento y dispositivo de filtrado adaptativo de datos de imagen.

Country Status (13)

Country Link
US (12) US6631162B1 (es)
EP (8) EP1335608A3 (es)
JP (4) JP3590351B2 (es)
KR (1) KR100243225B1 (es)
CN (6) CN1160668C (es)
AU (1) AU725691B2 (es)
BR (3) BR9816269B1 (es)
CA (3) CA2830878C (es)
DE (1) DE19882541T1 (es)
ES (5) ES2328439B2 (es)
GB (1) GB2342803B (es)
RU (4) RU2262210C2 (es)
WO (1) WO1999004497A2 (es)

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