BR112014010839A8 - processo de codificação e decodificação de imagens, dispositivo de codificação e decodificação e programas de computador correspondentes - Google Patents

processo de codificação e decodificação de imagens, dispositivo de codificação e decodificação e programas de computador correspondentes

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Publication number
BR112014010839A8
BR112014010839A8 BR112014010839A BR112014010839A BR112014010839A8 BR 112014010839 A8 BR112014010839 A8 BR 112014010839A8 BR 112014010839 A BR112014010839 A BR 112014010839A BR 112014010839 A BR112014010839 A BR 112014010839A BR 112014010839 A8 BR112014010839 A8 BR 112014010839A8
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Brazil
Prior art keywords
residual data
encoding
partition
coding
subset
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BR112014010839A
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English (en)
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BR112014010839B1 (pt
BR112014010839A2 (pt
Inventor
Henry Felix
Clare Gordon
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Orange
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Publication of BR112014010839A2 publication Critical patent/BR112014010839A2/pt
Publication of BR112014010839A8 publication Critical patent/BR112014010839A8/pt
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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
    • 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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • H04N19/103—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
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    • 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
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    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
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    • 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
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    • H04N19/18—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 set of transform coefficients
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    • H04N19/184—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 bits, e.g. of the compressed video stream
    • H—ELECTRICITY
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    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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    • H04N19/46—Embedding additional information in the video signal during the compression process
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
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    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

Abstract

resumo patente de invenção: "processo de codificação e decodificação de imagens, dispositivo de codificação e decodificação e programas de computador correspondentes". a presente invenção refere-se a um processo para codificar pelo menos uma imagem particionada, executando etapas de: - prever (c2) dados de uma partição corrente em função de pelo menos uma partição de referência já codificada e depois decodificada, gerando uma partição prevista; - determinar (c6 um conjunto de dados residuais comparando dados relativos à partição corrente e à partição prevista, esses dados residuais sendo associados respectivamente a diferentes informações digitais destinadas a experimentar a uma codificação entrópica. previamente à etapa de elaborar um sinal contendo as informações codificadas, as etapas seguintes são realizadas: - determinar (c71), partindo do conjunto de dados residuais predeterminado, um subconjunto contendo dados residuais próprios para serem modificados, - calcular (c8) o valor de uma função representativa dos dados residuais do subconjunto predeterminado, - comparar (c9) o valor calculado com um valor de pelo menos uma das informações digitais, - em função do resultado da comparação, modificar (c10) ou não pelo menos um dos dados residuais do subconjunto, - e, em caso de modificação, codificação entrópica (c20) do pelo menos um dado residual modificado.
BR112014010839-0A 2011-11-07 2012-11-06 Processo de codificação e decodificação de imagens, dispositivo de codificação e decodificação e suportes legíveis por computador correspondentes BR112014010839B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1160109A FR2982447A1 (fr) 2011-11-07 2011-11-07 Procede de codage et decodage d'images, dispositif de codage et decodage et programmes d'ordinateur correspondants
FR11/60,109 2011-11-07
PCT/FR2012/052552 WO2013068684A1 (fr) 2011-11-07 2012-11-06 Procédé de codage et décodage d'images, dispositif de codage et décodage et programmes d'ordinateur correspondants

Publications (3)

Publication Number Publication Date
BR112014010839A2 BR112014010839A2 (pt) 2017-06-13
BR112014010839A8 true BR112014010839A8 (pt) 2017-06-20
BR112014010839B1 BR112014010839B1 (pt) 2022-04-19

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ID=47263472

Family Applications (5)

Application Number Title Priority Date Filing Date
BR122020015262-1A BR122020015262B1 (pt) 2011-11-07 2012-11-06 Processo de decodificação de uma partição ativada para esconder dados de sinais de uma imagem
BR122020015283-4A BR122020015283B1 (pt) 2011-11-07 2012-11-06 Método implementado por computador para decodificar uma partição ativada para ocultar dados de sinais de uma imagem, decodificador para decodificar uma partição ativada para ocultar dados de sinais de uma imagem e meio legível por computador não transitório
BR122020015256-7A BR122020015256B1 (pt) 2011-11-07 2012-11-06 Processo de codificação
BR112014010839-0A BR112014010839B1 (pt) 2011-11-07 2012-11-06 Processo de codificação e decodificação de imagens, dispositivo de codificação e decodificação e suportes legíveis por computador correspondentes
BR122020015290-7A BR122020015290B1 (pt) 2011-11-07 2012-11-06 Método de decodificação de uma partição (bi) de uma imagem dividida em partições

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Application Number Title Priority Date Filing Date
BR122020015262-1A BR122020015262B1 (pt) 2011-11-07 2012-11-06 Processo de decodificação de uma partição ativada para esconder dados de sinais de uma imagem
BR122020015283-4A BR122020015283B1 (pt) 2011-11-07 2012-11-06 Método implementado por computador para decodificar uma partição ativada para ocultar dados de sinais de uma imagem, decodificador para decodificar uma partição ativada para ocultar dados de sinais de uma imagem e meio legível por computador não transitório
BR122020015256-7A BR122020015256B1 (pt) 2011-11-07 2012-11-06 Processo de codificação

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BR122020015290-7A BR122020015290B1 (pt) 2011-11-07 2012-11-06 Método de decodificação de uma partição (bi) de uma imagem dividida em partições

Country Status (22)

Country Link
US (9) US9374599B2 (pt)
EP (6) EP4009633A1 (pt)
JP (3) JP6096204B2 (pt)
KR (11) KR102149540B1 (pt)
CN (4) CN108093256B (pt)
BR (5) BR122020015262B1 (pt)
CY (4) CY1116899T1 (pt)
DK (5) DK3182707T3 (pt)
ES (5) ES2549066T3 (pt)
FR (1) FR2982447A1 (pt)
HK (7) HK1253940A1 (pt)
HR (4) HRP20151035T1 (pt)
HU (5) HUE025423T2 (pt)
IN (1) IN2014CN03039A (pt)
LT (4) LT2991351T (pt)
PL (5) PL3182707T3 (pt)
PT (5) PT2991351T (pt)
RS (3) RS54254B1 (pt)
RU (3) RU2609088C2 (pt)
SI (5) SI2981088T1 (pt)
SM (1) SMT201500241B (pt)
WO (1) WO2013068684A1 (pt)

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