BR112014005496A2 - métodos e aparelhos para quantificação e dequantificação de um bloco retangular de coeficientes - Google Patents

métodos e aparelhos para quantificação e dequantificação de um bloco retangular de coeficientes

Info

Publication number
BR112014005496A2
BR112014005496A2 BR112014005496A BR112014005496A BR112014005496A2 BR 112014005496 A2 BR112014005496 A2 BR 112014005496A2 BR 112014005496 A BR112014005496 A BR 112014005496A BR 112014005496 A BR112014005496 A BR 112014005496A BR 112014005496 A2 BR112014005496 A2 BR 112014005496A2
Authority
BR
Brazil
Prior art keywords
block
transform coefficients
quantifying
dequantification
coefficients
Prior art date
Application number
BR112014005496A
Other languages
English (en)
Other versions
BR112014005496A8 (pt
Inventor
Kim Jae-Hoon
Kung Wei-Ying
Fang Xue
Original Assignee
Motorola Mobility Llc
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 Motorola Mobility Llc filed Critical Motorola Mobility Llc
Publication of BR112014005496A2 publication Critical patent/BR112014005496A2/pt
Publication of BR112014005496A8 publication Critical patent/BR112014005496A8/pt

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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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • 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
    • H04N19/189—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
    • H04N19/192—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems

Landscapes

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

Abstract

resumo métodos e aparelhos para quantificação e dequantificação de um bloco retangular de coeficientes um sistema inclui um codificador que executa quantificação em um bloco retangular de coeficientes de transformada quantificados e um decodificador que executa dequantificação em um bloco retangular de coeficientes de transformada. o decodificador é configurado para receber um bloco wxh de coeficientes de transformada quantificados, em que w é uma largura de linha do bloco e h é uma altura de coluna do bloco. o decodificador está adicionalmente configurado para aplicar processamento de dequantificação ao bloco wxh de coeficientes de transformada quantificados para gerar um bloco de coeficientes de transformada, o qual é utilizado para gerar uma figura correspondente ao bloco wxh de coeficientes de transformada quantificados. o processamento de dequantificação compreende aplicar um primeiro algoritmo de dequantificação quando uma saída m de uma função (i) é igual a um valor inteiro, e aplicar um segundo algoritmo de dequantificação quando a saída m é igual a um valor não inteiro.
BR112014005496A 2011-09-08 2012-09-07 Métodos e aparelhos para quantificação e dequantificação de um bloco retangular de coeficientes BR112014005496A8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161532421P 2011-09-08 2011-09-08
PCT/US2012/054276 WO2013036845A2 (en) 2011-09-08 2012-09-07 Methods and apparatus for quantization and dequantization of a rectangular block of coefficients
US13/607,225 US8958472B2 (en) 2011-09-08 2012-09-07 Methods and apparatus for quantization and dequantization of a rectangular block of coefficients

Publications (2)

Publication Number Publication Date
BR112014005496A2 true BR112014005496A2 (pt) 2017-06-13
BR112014005496A8 BR112014005496A8 (pt) 2022-07-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014005496A BR112014005496A8 (pt) 2011-09-08 2012-09-07 Métodos e aparelhos para quantificação e dequantificação de um bloco retangular de coeficientes

Country Status (9)

Country Link
US (1) US8958472B2 (pt)
EP (1) EP2745506A2 (pt)
JP (1) JP5770378B2 (pt)
KR (1) KR20140046055A (pt)
CN (1) CN103797796B (pt)
BR (1) BR112014005496A8 (pt)
MX (1) MX2014002749A (pt)
WO (1) WO2013036845A2 (pt)
ZA (1) ZA201400744B (pt)

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US9491475B2 (en) 2012-03-29 2016-11-08 Magnum Semiconductor, Inc. Apparatuses and methods for providing quantized coefficients for video encoding
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US9503719B2 (en) * 2012-06-26 2016-11-22 Intel Corporation Inter-layer coding unit quadtree pattern prediction
US9414054B2 (en) 2012-07-02 2016-08-09 Microsoft Technology Licensing, Llc Control and use of chroma quantization parameter values
US9591302B2 (en) * 2012-07-02 2017-03-07 Microsoft Technology Licensing, Llc Use of chroma quantization parameter offsets in deblocking
US9392286B2 (en) 2013-03-15 2016-07-12 Magnum Semiconductor, Inc. Apparatuses and methods for providing quantized coefficients for video encoding
US9693071B1 (en) * 2013-09-25 2017-06-27 Visualon, Inc. Self-adaptive load balance optimization for multicore parallel processing of video data
US9794575B2 (en) 2013-12-18 2017-10-17 Magnum Semiconductor, Inc. Apparatuses and methods for optimizing rate-distortion costs in video encoding
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CN104602026B (zh) * 2015-01-22 2017-12-01 复旦大学 一种适用于hevc标准下编码器中全复用的重建环路结构
US10218975B2 (en) * 2015-09-29 2019-02-26 Qualcomm Incorporated Transform precision manipulation in video coding
KR102601732B1 (ko) * 2016-05-31 2023-11-14 삼성디스플레이 주식회사 영상 부호화 방법 및 영상 복호화 방법
AU2019228387B2 (en) * 2018-02-27 2024-07-25 Zetane Systems Inc. Scalable transform processing unit for heterogeneous data
EP3846470A4 (en) * 2018-08-31 2022-05-11 Samsung Electronics Co., Ltd. VIDEO DECODING METHOD AND APPARATUS, VIDEO CODING METHOD AND APPARATUS
JP2020098984A (ja) 2018-12-17 2020-06-25 キヤノン株式会社 画像符号化装置及び画像復号装置及びそれらの制御方法及びプログラム

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Also Published As

Publication number Publication date
JP2014524719A (ja) 2014-09-22
WO2013036845A3 (en) 2013-05-02
ZA201400744B (en) 2016-02-24
US8958472B2 (en) 2015-02-17
MX2014002749A (es) 2014-04-16
CN103797796B (zh) 2017-04-19
EP2745506A2 (en) 2014-06-25
CN103797796A (zh) 2014-05-14
KR20140046055A (ko) 2014-04-17
US20130064290A1 (en) 2013-03-14
BR112014005496A8 (pt) 2022-07-05
JP5770378B2 (ja) 2015-08-26
WO2013036845A2 (en) 2013-03-14

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B15K Others concerning applications: alteration of classification

Ipc: H04N 7/00 (2011.01), H04N 19/10 (2014.01), H04N 19

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B25A Requested transfer of rights approved

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC (US)

B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time