BRPI0413979A - método e aparelho para minimizar o número de imagens de referência usadas para inter-codificação - Google Patents
método e aparelho para minimizar o número de imagens de referência usadas para inter-codificaçãoInfo
- Publication number
- BRPI0413979A BRPI0413979A BRPI0413979-8A BRPI0413979A BRPI0413979A BR PI0413979 A BRPI0413979 A BR PI0413979A BR PI0413979 A BRPI0413979 A BR PI0413979A BR PI0413979 A BRPI0413979 A BR PI0413979A
- Authority
- BR
- Brazil
- Prior art keywords
- reference images
- image
- list
- minimizing
- minimize
- Prior art date
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
- H04N19/50—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
- H04N19/573—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
- H04N19/10—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
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
-
- 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
- H04N19/172—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 picture, frame or field
-
- 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
- H04N19/60—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
-
- 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
- H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
"MéTODO E APARELHO PARA MINIMIZAR O NúMERO DE IMAGENS DE REFERêNCIA USADAS PARA INTER-CODIFICAçãO". Um método (200) para minimizar e otimizar uma lista de imagens de referência ativa a serem usadas para inter-codificar (para frente ou para trás) uma imagem atual, ou uma região de pixel (por exemplo, objeto de vídeo) dentro da imagem atual. Ajustar o número de imagens de referência ativa em uma lista igual a um (294) com base em uma ou mais decisões relacionadas aos dados de pixel e movimento entre a imagem atual e uma ou mais imagens de referência. Caso contrário, minimizar o número de imagens de referência ativas (300) na lista com base em uma ou mais decisões relacionadas aos dados de pixel e movimento entre a imagem atual e uma ou mais imagens de referência. Minimizar o número de imagens de referência ativa em uma segunda lista de imagens de referência com base na utilização de imagens de referência na primeira lista de imagens de referência. Um codificador de vídeo (700) processa os dados representando uma imagem de vídeo bidimensional a qual foi produzida por uma câmera de vídeo convencional comercialmente disponível. O codificador de vídeo é adaptado para determinar, selecionar e minimizar o número de imagens de referência ativa a serem usadas para inter-codificar uma imagem atual. O fluxo de bits transmitido pelo codificador (700) pode ser decodificado por intermédio de codificadores da técnica correlata.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US49781403P | 2003-08-26 | 2003-08-26 | |
PCT/US2004/027432 WO2005022923A2 (en) | 2003-08-26 | 2004-08-24 | Method and apparatus for minimizing number of reference pictures used for inter-coding |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0413979A true BRPI0413979A (pt) | 2006-11-07 |
Family
ID=34272607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0413979-8A BRPI0413979A (pt) | 2003-08-26 | 2004-08-24 | método e aparelho para minimizar o número de imagens de referência usadas para inter-codificação |
Country Status (8)
Country | Link |
---|---|
US (1) | US8073048B2 (pt) |
EP (1) | EP1661409A2 (pt) |
JP (1) | JP2007503776A (pt) |
KR (1) | KR101177031B1 (pt) |
CN (1) | CN1875637A (pt) |
BR (1) | BRPI0413979A (pt) |
MX (1) | MXPA06002211A (pt) |
WO (1) | WO2005022923A2 (pt) |
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-
2004
- 2004-08-24 MX MXPA06002211A patent/MXPA06002211A/es not_active Application Discontinuation
- 2004-08-24 EP EP04782008A patent/EP1661409A2/en not_active Withdrawn
- 2004-08-24 WO PCT/US2004/027432 patent/WO2005022923A2/en active Application Filing
- 2004-08-24 JP JP2006524789A patent/JP2007503776A/ja active Pending
- 2004-08-24 KR KR1020067003640A patent/KR101177031B1/ko active IP Right Grant
- 2004-08-24 CN CNA2004800316738A patent/CN1875637A/zh active Pending
- 2004-08-24 US US10/569,168 patent/US8073048B2/en active Active
- 2004-08-24 BR BRPI0413979-8A patent/BRPI0413979A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1661409A2 (en) | 2006-05-31 |
WO2005022923A3 (en) | 2005-08-11 |
WO2005022923A2 (en) | 2005-03-10 |
US8073048B2 (en) | 2011-12-06 |
US20070019724A1 (en) | 2007-01-25 |
MXPA06002211A (es) | 2006-05-19 |
KR20070011225A (ko) | 2007-01-24 |
KR101177031B1 (ko) | 2012-09-07 |
JP2007503776A (ja) | 2007-02-22 |
CN1875637A (zh) | 2006-12-06 |
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