BRPI0915971A2 - aparelho e método de processamento de imagem - Google Patents

aparelho e método de processamento de imagem

Info

Publication number
BRPI0915971A2
BRPI0915971A2 BRPI0915971A BRPI0915971A BRPI0915971A2 BR PI0915971 A2 BRPI0915971 A2 BR PI0915971A2 BR PI0915971 A BRPI0915971 A BR PI0915971A BR PI0915971 A BRPI0915971 A BR PI0915971A BR PI0915971 A2 BRPI0915971 A2 BR PI0915971A2
Authority
BR
Brazil
Prior art keywords
image
pass filtering
gain
image processing
adjusted
Prior art date
Application number
BRPI0915971A
Other languages
English (en)
Inventor
Tanaka Junichi
Nakagami Ohji
Nagumo Takefumi
Yagasaki Yoichi
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of BRPI0915971A2 publication Critical patent/BRPI0915971A2/pt

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
    • 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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/50—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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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
    • H04N19/615—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding using motion compensated temporal filtering [MCTF]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

aparelho e método de processamento de imagem. são divulgados um dispositivo e um método de processamento de imagem capazes de criar uma imagem predita com alta precisão sem aumentar a carga de processamento. uma imagem diferencial é calculada a partir de imagens com movimento compensado (mc0) e (mc1) que são extraídas de diferentes quadros de referência. a imagem diferencial passa por filtragem passa baixa e o ganho da imagem obtida é ajustado. a imagem obtida pela filtragem passa baixa passa por filtragem passa alta e o ganho da imagem obtida é ajustado. uma imagem obtida pela adição da saída de um circuito de ajuste de ganho (53) e da saída de um circuito de ajuste de ganho (55) é adicionada na imagem com movimento compensado (mco) e uma imagem predita é criada. a invenção pode ser aplicada em dispositivos que realizam codificação preditiva e em dispositivos que decodificam informação que foi codificada por meio de codificação preditiva.
BRPI0915971A 2008-07-25 2009-07-24 aparelho e método de processamento de imagem BRPI0915971A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008192093 2008-07-25
PCT/JP2009/063249 WO2010010942A1 (ja) 2008-07-25 2009-07-24 画像処理装置および方法

Publications (1)

Publication Number Publication Date
BRPI0915971A2 true BRPI0915971A2 (pt) 2019-02-26

Family

ID=41570402

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0915971A BRPI0915971A2 (pt) 2008-07-25 2009-07-24 aparelho e método de processamento de imagem

Country Status (8)

Country Link
US (1) US8705627B2 (pt)
EP (1) EP2306733A4 (pt)
JP (2) JP5333449B2 (pt)
KR (1) KR101590663B1 (pt)
CN (1) CN102100071B (pt)
BR (1) BRPI0915971A2 (pt)
RU (1) RU2506711C2 (pt)
WO (1) WO2010010942A1 (pt)

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Also Published As

Publication number Publication date
KR101590663B1 (ko) 2016-02-18
RU2011101988A (ru) 2012-07-27
JP5333449B2 (ja) 2013-11-06
US8705627B2 (en) 2014-04-22
EP2306733A4 (en) 2017-03-15
RU2506711C2 (ru) 2014-02-10
KR20110046444A (ko) 2011-05-04
WO2010010942A1 (ja) 2010-01-28
CN102100071B (zh) 2013-01-02
EP2306733A1 (en) 2011-04-06
US20110122953A1 (en) 2011-05-26
CN102100071A (zh) 2011-06-15
JPWO2010010942A1 (ja) 2012-01-05
JP2013243759A (ja) 2013-12-05
JP5641377B2 (ja) 2014-12-17

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