WO2008120433A1 - 逆量子化回路、逆量子化方法及び画像再生装置 - Google Patents
逆量子化回路、逆量子化方法及び画像再生装置 Download PDFInfo
- Publication number
- WO2008120433A1 WO2008120433A1 PCT/JP2008/000345 JP2008000345W WO2008120433A1 WO 2008120433 A1 WO2008120433 A1 WO 2008120433A1 JP 2008000345 W JP2008000345 W JP 2008000345W WO 2008120433 A1 WO2008120433 A1 WO 2008120433A1
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- WIPO (PCT)
- Prior art keywords
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- dequantization
- generation part
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- shift quantity
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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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
-
- 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
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
-
- 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
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
-
- 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
- H04N19/18—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
-
- 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880001139.0A CN101569200B (zh) | 2007-03-28 | 2008-02-26 | 逆量子化电路、逆量子化方法及图像再生装置 |
US12/438,927 US8401073B2 (en) | 2007-03-28 | 2008-02-26 | Inverse quantization circuit, inverse quantization method and image reproducing apparatus |
JP2009507398A JP5352448B2 (ja) | 2007-03-28 | 2008-02-26 | 逆量子化回路、逆量子化方法及び画像再生装置 |
EP08710498A EP2081387A4 (en) | 2007-03-28 | 2008-02-26 | DEQUANTIZATION CIRCUIT, DEBURRENT PROCESSING AND IMAGE PLAYING DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-083751 | 2007-03-28 | ||
JP2007083751 | 2007-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008120433A1 true WO2008120433A1 (ja) | 2008-10-09 |
Family
ID=39808021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/000345 WO2008120433A1 (ja) | 2007-03-28 | 2008-02-26 | 逆量子化回路、逆量子化方法及び画像再生装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8401073B2 (ja) |
EP (1) | EP2081387A4 (ja) |
JP (1) | JP5352448B2 (ja) |
CN (1) | CN101569200B (ja) |
WO (1) | WO2008120433A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012099267A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with multiple clipping |
WO2012099268A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with memory storing |
WO2012099266A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with inverse transform clipping |
WO2012099270A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform including clipping |
WO2012099269A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
WO2012124787A1 (en) * | 2011-03-11 | 2012-09-20 | Sharp Kabushiki Kaisha | A method for decoding video |
JP2015164332A (ja) * | 2011-06-30 | 2015-09-10 | サムスン エレクトロニクス カンパニー リミテッド | 固定小数点変換のためのビット深度調節を伴うビデオ符号化方法及びその装置、並びにビデオ復号化方法及びその装置 |
KR20170108112A (ko) * | 2015-01-29 | 2017-09-26 | 브이아이디 스케일, 인크. | 팔레트 코딩 모드를 위한 이스케이프 컬러 코딩 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8971416B2 (en) * | 2011-05-05 | 2015-03-03 | Vixs Systems, Inc | Video decoder with vector processor and methods for use therewith |
US9503741B2 (en) * | 2011-06-08 | 2016-11-22 | Vixs Systems, Inc. | Video decoder with multi-format vector processor and methods for use therewith |
US20130083845A1 (en) * | 2011-09-30 | 2013-04-04 | Research In Motion Limited | Methods and devices for data compression using a non-uniform reconstruction space |
CN106462808B (zh) * | 2014-06-06 | 2019-05-14 | 微软技术许可有限责任公司 | 用于算术和函数合成的量子算法 |
US9609362B2 (en) * | 2014-10-06 | 2017-03-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Coding and deriving quantization parameters |
CN107066234B (zh) * | 2017-04-21 | 2020-05-26 | 重庆邮电大学 | 一种量子乘法器的设计方法 |
CN114521327A (zh) * | 2019-07-05 | 2022-05-20 | 威诺瓦国际有限公司 | 视频译码中的残差的量化 |
Citations (6)
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JPH06125539A (ja) * | 1992-10-14 | 1994-05-06 | Nippon Telegr & Teleph Corp <Ntt> | 画像符号化装置 |
JP2000050263A (ja) * | 1998-07-28 | 2000-02-18 | Hitachi Ltd | 画像符号化並びに復号化装置及びこれを用いた撮像装置 |
JP2003133961A (ja) * | 2001-10-25 | 2003-05-09 | Fujitsu Ltd | 逆量子化回路 |
JP2004201345A (ja) | 2004-02-20 | 2004-07-15 | Mitsubishi Electric Corp | 画像符号化方法、画像符号化装置、画像復号化方法及び画像復号化装置 |
JP2004328480A (ja) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Ind Co Ltd | 逆量子化回路 |
JP2005354307A (ja) * | 2004-06-09 | 2005-12-22 | Toshiba Corp | 逆量子化器及びこれを用いた画像復号化装置 |
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GB2288520B (en) | 1994-03-24 | 1998-10-14 | Discovision Ass | Pipeline |
US5842033A (en) * | 1992-06-30 | 1998-11-24 | Discovision Associates | Padding apparatus for passing an arbitrary number of bits through a buffer in a pipeline system |
US6047112A (en) * | 1992-06-30 | 2000-04-04 | Discovision Associates | Technique for initiating processing of a data stream of encoded video information |
US6904404B1 (en) * | 1996-07-01 | 2005-06-07 | Matsushita Electric Industrial Co., Ltd. | Multistage inverse quantization having the plurality of frequency bands |
US6493385B1 (en) * | 1997-10-23 | 2002-12-10 | Mitsubishi Denki Kabushiki Kaisha | Image encoding method, image encoder, image decoding method, and image decoder |
US7194138B1 (en) * | 1998-11-04 | 2007-03-20 | International Business Machines Corporation | Reduced-error processing of transformed digital data |
US6678423B1 (en) * | 2000-03-13 | 2004-01-13 | International Business Machines Corporation | Shift and/or merge of transformed data along two axes |
US6859815B2 (en) * | 2000-12-19 | 2005-02-22 | Koninklijke Philips Electronics N.V. | Approximate inverse discrete cosine transform for scalable computation complexity video and still image decoding |
US7113646B2 (en) * | 2001-06-29 | 2006-09-26 | Equator Technologies, Inc. | Decoding of predicted AC coefficient without division |
EP1351515A3 (en) | 2002-04-01 | 2005-08-03 | Broadcom Corporation | Inverse quantizer supporting multiple decoding standards |
CN100542262C (zh) * | 2004-01-30 | 2009-09-16 | 松下电器产业株式会社 | 逆量化方法图像解码方法和设备及处理器 |
EP1714484A4 (en) * | 2004-01-30 | 2009-03-18 | Panasonic Corp | BILDCODE AND DECODE PROCESSING; DEVICE AND PROGRAM THEREFOR |
EP1599049A3 (en) | 2004-05-21 | 2008-04-02 | Broadcom Advanced Compression Group, LLC | Multistandard video decoder |
US7873105B2 (en) | 2005-04-01 | 2011-01-18 | Broadcom Corporation | Hardware implementation of optimized single inverse quantization engine for a plurality of standards |
US8208548B2 (en) * | 2006-02-09 | 2012-06-26 | Qualcomm Incorporated | Video encoding |
US8059721B2 (en) * | 2006-04-07 | 2011-11-15 | Microsoft Corporation | Estimating sample-domain distortion in the transform domain with rounding compensation |
-
2008
- 2008-02-26 EP EP08710498A patent/EP2081387A4/en not_active Withdrawn
- 2008-02-26 CN CN200880001139.0A patent/CN101569200B/zh not_active Expired - Fee Related
- 2008-02-26 WO PCT/JP2008/000345 patent/WO2008120433A1/ja active Application Filing
- 2008-02-26 US US12/438,927 patent/US8401073B2/en not_active Expired - Fee Related
- 2008-02-26 JP JP2009507398A patent/JP5352448B2/ja not_active Expired - Fee Related
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JPH06125539A (ja) * | 1992-10-14 | 1994-05-06 | Nippon Telegr & Teleph Corp <Ntt> | 画像符号化装置 |
JP2000050263A (ja) * | 1998-07-28 | 2000-02-18 | Hitachi Ltd | 画像符号化並びに復号化装置及びこれを用いた撮像装置 |
JP2003133961A (ja) * | 2001-10-25 | 2003-05-09 | Fujitsu Ltd | 逆量子化回路 |
JP2004328480A (ja) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Ind Co Ltd | 逆量子化回路 |
JP2004201345A (ja) | 2004-02-20 | 2004-07-15 | Mitsubishi Electric Corp | 画像符号化方法、画像符号化装置、画像復号化方法及び画像復号化装置 |
JP2005354307A (ja) * | 2004-06-09 | 2005-12-22 | Toshiba Corp | 逆量子化器及びこれを用いた画像復号化装置 |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12003730B2 (en) | 2011-01-18 | 2024-06-04 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
JP2019080352A (ja) * | 2011-01-18 | 2019-05-23 | ドルビー・インターナショナル・アーベー | 逆変換シフトメモリにより削減されたダイナミックレンジ変換を行う動画像を復号する方法 |
WO2012099266A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with inverse transform clipping |
WO2012099270A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform including clipping |
WO2012099269A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
JP2022069449A (ja) * | 2011-01-18 | 2022-05-11 | ドルビー・インターナショナル・アーベー | 逆変換シフトメモリにより削減されたダイナミックレンジ変換を行う動画像を復号する方法 |
JP2014504046A (ja) * | 2011-01-18 | 2014-02-13 | シャープ株式会社 | 逆変換シフトメモリにより削減されたダイナミックレンジ変換を行う動画像復号装置 |
US10284855B2 (en) | 2011-01-18 | 2019-05-07 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
AU2012207827B2 (en) * | 2011-01-18 | 2016-09-29 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
JP2016192789A (ja) * | 2011-01-18 | 2016-11-10 | ドルビー・インターナショナル・アーベー | 逆変換シフトメモリにより削減されたダイナミックレンジ変換を行う動画像を復号する方法 |
US10652545B2 (en) | 2011-01-18 | 2020-05-12 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
WO2012099268A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with memory storing |
US9807395B2 (en) | 2011-01-18 | 2017-10-31 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
JP7225449B2 (ja) | 2011-01-18 | 2023-02-20 | ドルビー・インターナショナル・アーベー | 逆変換シフトメモリにより削減されたダイナミックレンジ変換を行う動画像を復号する方法 |
US10958910B2 (en) | 2011-01-18 | 2021-03-23 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
US11431982B2 (en) | 2011-01-18 | 2022-08-30 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
WO2012099267A1 (en) * | 2011-01-18 | 2012-07-26 | Sharp Kabushiki Kaisha | Video decoder with reduced dynamic range transform with multiple clipping |
US9955165B2 (en) | 2011-01-18 | 2018-04-24 | Dolby International Ab | Video decoder with reduced dynamic range transform with inverse transform shifting memory |
JP2018142979A (ja) * | 2011-01-18 | 2018-09-13 | ドルビー・インターナショナル・アーベー | 逆変換シフトメモリにより削減されたダイナミックレンジ変換を行う動画像を復号する方法 |
WO2012124787A1 (en) * | 2011-03-11 | 2012-09-20 | Sharp Kabushiki Kaisha | A method for decoding video |
US9888242B2 (en) | 2011-06-30 | 2018-02-06 | Samsung Electronics Co., Ltd. | Video encoding method with bit depth adjustment for fixed-point conversion and apparatus therefor, and video decoding method and apparatus therefor |
JP2015164332A (ja) * | 2011-06-30 | 2015-09-10 | サムスン エレクトロニクス カンパニー リミテッド | 固定小数点変換のためのビット深度調節を伴うビデオ符号化方法及びその装置、並びにビデオ復号化方法及びその装置 |
JP2017130982A (ja) * | 2011-06-30 | 2017-07-27 | サムスン エレクトロニクス カンパニー リミテッド | 固定小数点変換のためのビット深度調節を伴うビデオ符号化方法及びその装置、並びにビデオ復号化方法及びその装置 |
US9549202B2 (en) | 2011-06-30 | 2017-01-17 | Samsung Electronics Co., Ltd. | Video encoding method with bit depth adjustment for fixed-point conversion and apparatus therefor, and video decoding method and apparatus therefor |
JP2018510539A (ja) * | 2015-01-29 | 2018-04-12 | ヴィド スケール インコーポレイテッド | パレット符号化モードのためのエスケープカラー符号化 |
CN111601110A (zh) * | 2015-01-29 | 2020-08-28 | Vid拓展公司 | 用于调色编码模式的逃逸色彩编码 |
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KR102051723B1 (ko) | 2015-01-29 | 2019-12-03 | 브이아이디 스케일, 인크. | 팔레트 코딩 모드를 위한 이스케이프 컬러 코딩 |
US10277910B2 (en) | 2015-01-29 | 2019-04-30 | Vid Scale, Inc. | Escape color coding for palette coding mode |
CN107211134A (zh) * | 2015-01-29 | 2017-09-26 | Vid拓展公司 | 用于调色编码模式的逃逸色彩编码 |
CN111601110B (zh) * | 2015-01-29 | 2023-11-07 | Vid拓展公司 | 用于调色编码模式的逃逸色彩编码 |
KR20170108112A (ko) * | 2015-01-29 | 2017-09-26 | 브이아이디 스케일, 인크. | 팔레트 코딩 모드를 위한 이스케이프 컬러 코딩 |
Also Published As
Publication number | Publication date |
---|---|
EP2081387A8 (en) | 2009-09-23 |
CN101569200A (zh) | 2009-10-28 |
EP2081387A4 (en) | 2011-08-31 |
EP2081387A1 (en) | 2009-07-22 |
JPWO2008120433A1 (ja) | 2010-07-15 |
US8401073B2 (en) | 2013-03-19 |
CN101569200B (zh) | 2011-11-02 |
JP5352448B2 (ja) | 2013-11-27 |
US20100014582A1 (en) | 2010-01-21 |
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