PE48399A1 - Metodo de ajuste de banda de imagen de video y disposicion de filtro - Google Patents

Metodo de ajuste de banda de imagen de video y disposicion de filtro

Info

Publication number
PE48399A1
PE48399A1 PE1998000556A PE00055698A PE48399A1 PE 48399 A1 PE48399 A1 PE 48399A1 PE 1998000556 A PE1998000556 A PE 1998000556A PE 00055698 A PE00055698 A PE 00055698A PE 48399 A1 PE48399 A1 PE 48399A1
Authority
PE
Peru
Prior art keywords
pixel
video image
adjustment method
filter arrangement
band adjustment
Prior art date
Application number
PE1998000556A
Other languages
English (en)
Inventor
Juha Mustonen
Olli Silven
Original Assignee
Elektrobit Oy
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 Elektrobit Oy filed Critical Elektrobit Oy
Publication of PE48399A1 publication Critical patent/PE48399A1/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • 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
    • H04N19/146—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
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/60—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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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

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)

Abstract

CONSISTE EN SOMETER UNA IMAGEN, COMPUESTA POR PIXELES, A POR LO MENOS PRE-FILTRADO, CODIFICACION Y ALMACENAMIENTO EN UN BUFFER PARA ULTERIOR TRANSMISION, EN EL QUE EL PRE-FILTRADO DE UN VALOR DE REFERENCIA QUE DEPENDE DE LOS VALORES DE PIXELES EN UN BLOCK DE PIXELES ASOCIADO CON EL PIXEL EN LA UBICACION Y/O EN EL TIEMPO ES GENERADO PARA EL PIXEL DE LA IMAGEN, Y EN EL QUE EL PRE-FILTRADO DEL VALOR DE PIXEL FILTRADO DEPENDE DE LA RELACION DE LA DIFERENCIA ENTRE EL VALOR DE PIXEL ORIGINAL Y EL VALOR DE REFERENCIA GENERADO A UN VALOR DE UMBRAL DE FILTRADO, CARACTERIZADO POR CAMBIAR EL VALOR DE UMBRAL DE PRE-FILTRADO DE ACUERDO A LA VELOCIDAD DE LLENADO DEL BUFFER
PE1998000556A 1997-06-30 1998-06-24 Metodo de ajuste de banda de imagen de video y disposicion de filtro PE48399A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI972816A FI108318B (fi) 1997-06-30 1997-06-30 Videokuvan kaistansäätömenetelmä ja suodatinjärjestely

Publications (1)

Publication Number Publication Date
PE48399A1 true PE48399A1 (es) 1999-07-06

Family

ID=8549168

Family Applications (1)

Application Number Title Priority Date Filing Date
PE1998000556A PE48399A1 (es) 1997-06-30 1998-06-24 Metodo de ajuste de banda de imagen de video y disposicion de filtro

Country Status (10)

Country Link
EP (1) EP0995304B1 (es)
JP (1) JP2002507371A (es)
AR (1) AR016288A1 (es)
AT (1) ATE230538T1 (es)
AU (1) AU7771298A (es)
DE (1) DE69810476T2 (es)
FI (1) FI108318B (es)
PE (1) PE48399A1 (es)
WO (1) WO1999001979A2 (es)
ZA (1) ZA985622B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7903733B2 (en) * 2006-01-26 2011-03-08 Qualcomm Incorporated Adaptive filtering to enhance video encoder performance
KR101798079B1 (ko) * 2010-05-10 2017-11-16 삼성전자주식회사 픽셀값의 차분을 이용하여 영상 프레임을 부호화하는 방법 및 이를 위한 장치
CN115103190A (zh) * 2022-06-14 2022-09-23 晶晨芯半导体(成都)有限公司 编码器码率控制方法及模块、芯片、电子设备和存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749829A (en) * 1971-05-14 1973-07-31 Bell Telephone Labor Inc Slow scan procedure for high resolution graphics mode video scene compatible with conditional replenishment type of bandwidth reduction
JPS5244512A (en) * 1975-10-06 1977-04-07 Nippon Telegr & Teleph Corp <Ntt> Between-frame coding equipment
US5134476A (en) * 1990-03-30 1992-07-28 At&T Bell Laboratories Video signal encoding with bit rate control
JPH08140095A (ja) * 1994-11-04 1996-05-31 Matsushita Electric Ind Co Ltd 符号化装置

Also Published As

Publication number Publication date
EP0995304B1 (en) 2003-01-02
ATE230538T1 (de) 2003-01-15
JP2002507371A (ja) 2002-03-05
WO1999001979A2 (en) 1999-01-14
AU7771298A (en) 1999-01-25
AR016288A1 (es) 2001-07-04
ZA985622B (en) 1999-01-26
DE69810476D1 (de) 2003-02-06
FI972816A (fi) 1998-12-31
FI972816A0 (fi) 1997-06-30
DE69810476T2 (de) 2009-09-24
WO1999001979A3 (en) 1999-03-25
FI108318B (fi) 2001-12-31
EP0995304A2 (en) 2000-04-26

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Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed