BR112014005496A8 - 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 coeficientesInfo
- Publication number
- BR112014005496A8 BR112014005496A8 BR112014005496A BR112014005496A BR112014005496A8 BR 112014005496 A8 BR112014005496 A8 BR 112014005496A8 BR 112014005496 A BR112014005496 A BR 112014005496A BR 112014005496 A BR112014005496 A BR 112014005496A BR 112014005496 A8 BR112014005496 A8 BR 112014005496A8
- Authority
- BR
- Brazil
- Prior art keywords
- block
- transform coefficients
- coefficients
- rectangular block
- dequantification
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000011002 quantification Methods 0.000 title abstract 2
- 238000013139 quantization Methods 0.000 abstract 1
Classifications
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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
- H04N19/10—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
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.
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 BR112014005496A2 (pt) | 2017-06-13 |
BR112014005496A8 true BR112014005496A8 (pt) | 2022-07-05 |
Family
ID=47829824
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) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10645398B2 (en) | 2011-10-25 | 2020-05-05 | Texas Instruments Incorporated | Sample-based angular intra-prediction in video coding |
US9167261B2 (en) | 2011-11-07 | 2015-10-20 | Sharp Laboratories Of America, Inc. | Video decoder with constrained dynamic range |
US10116951B2 (en) * | 2011-11-07 | 2018-10-30 | Sharp Laboratories Of America, Inc. | Video decoder with constrained dynamic range |
US9491475B2 (en) | 2012-03-29 | 2016-11-08 | Magnum Semiconductor, Inc. | Apparatuses and methods for providing quantized coefficients for video encoding |
GB2501535A (en) * | 2012-04-26 | 2013-10-30 | Sony Corp | Chrominance Processing in High Efficiency Video Codecs |
CN104321970B (zh) * | 2012-06-26 | 2018-01-19 | 英特尔公司 | 层间编码单元四叉树模式预测 |
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 |
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 |
CN104602014B (zh) * | 2015-01-22 | 2018-04-03 | 复旦大学 | 一种适用于hevc标准的量化与反量化硬件复用算法及硬件结构 |
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 |
KR20200124287A (ko) * | 2018-02-27 | 2020-11-02 | 제탄 시스템즈 인코포레이티드 | 이종 데이터를 위한 확장 가능한 변환 처리 유닛 |
AU2019332547B2 (en) * | 2018-08-31 | 2024-06-13 | Samsung Electronics Co., Ltd. | Video decoding method and apparatus, and video encoding 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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003304404A (ja) * | 2002-04-09 | 2003-10-24 | Canon Inc | 画像符号化装置 |
US20030202603A1 (en) * | 2002-04-12 | 2003-10-30 | William Chen | Method and apparatus for fast inverse motion compensation using factorization and integer approximation |
US7702161B2 (en) * | 2005-10-28 | 2010-04-20 | Aspeed Technology Inc. | Progressive differential motion JPEG codec |
KR101394153B1 (ko) * | 2007-12-11 | 2014-05-16 | 삼성전자주식회사 | 양자화 방법 및 장치, 역양자화 방법 및 장치 |
KR101518237B1 (ko) * | 2008-09-01 | 2015-05-15 | 삼성전자주식회사 | 영상의 역양자화 방법 및 장치, 복호화 방법 및 장치 |
US8451892B2 (en) * | 2009-06-30 | 2013-05-28 | Oracle America, Inc. | Method and system for linear quantization and dequantization |
JP5581688B2 (ja) * | 2009-12-24 | 2014-09-03 | ソニー株式会社 | 画像処理装置および方法、並びにプログラム |
JP5392199B2 (ja) * | 2010-07-09 | 2014-01-22 | ソニー株式会社 | 画像処理装置および方法 |
WO2012160890A1 (ja) * | 2011-05-20 | 2012-11-29 | ソニー株式会社 | 画像処理装置及び画像処理方法 |
KR101358889B1 (ko) * | 2011-11-22 | 2014-02-07 | 연세대학교 산학협력단 | Cfa를 이용하여 획득한 샘플링된 컬러 영상을 부호화/복호화하기 위한 장치 및 그 방법 |
WO2013171168A1 (en) * | 2012-05-14 | 2013-11-21 | Luca Rossato | Encoding and decoding based on blending of sequences of samples along time |
-
2012
- 2012-09-07 WO PCT/US2012/054276 patent/WO2013036845A2/en active Application Filing
- 2012-09-07 EP EP12759874.6A patent/EP2745506A2/en not_active Withdrawn
- 2012-09-07 MX MX2014002749A patent/MX2014002749A/es not_active Application Discontinuation
- 2012-09-07 US US13/607,225 patent/US8958472B2/en active Active
- 2012-09-07 KR KR1020147006044A patent/KR20140046055A/ko not_active Application Discontinuation
- 2012-09-07 BR BR112014005496A patent/BR112014005496A8/pt active Search and Examination
- 2012-09-07 CN CN201280043710.1A patent/CN103797796B/zh active Active
- 2012-09-07 JP JP2014527365A patent/JP5770378B2/ja active Active
-
2014
- 2014-01-30 ZA ZA2014/00744A patent/ZA201400744B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN103797796A (zh) | 2014-05-14 |
ZA201400744B (en) | 2016-02-24 |
JP5770378B2 (ja) | 2015-08-26 |
JP2014524719A (ja) | 2014-09-22 |
BR112014005496A2 (pt) | 2017-06-13 |
WO2013036845A2 (en) | 2013-03-14 |
EP2745506A2 (en) | 2014-06-25 |
MX2014002749A (es) | 2014-04-16 |
CN103797796B (zh) | 2017-04-19 |
US20130064290A1 (en) | 2013-03-14 |
WO2013036845A3 (en) | 2013-05-02 |
KR20140046055A (ko) | 2014-04-17 |
US8958472B2 (en) | 2015-02-17 |
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Legal Events
Date | Code | Title | Description |
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B15K | Others concerning applications: alteration of classification |
Ipc: H04N 7/00 (2011.01), H04N 19/10 (2014.01), H04N 19 |
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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) |
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B11D | Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time |