JP2013038768A5 - - Google Patents
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- Publication number
- JP2013038768A5 JP2013038768A5 JP2012103806A JP2012103806A JP2013038768A5 JP 2013038768 A5 JP2013038768 A5 JP 2013038768A5 JP 2012103806 A JP2012103806 A JP 2012103806A JP 2012103806 A JP2012103806 A JP 2012103806A JP 2013038768 A5 JP2013038768 A5 JP 2013038768A5
- Authority
- JP
- Japan
- Prior art keywords
- quantization
- quantization matrix
- image
- decoding
- encoding
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000013139 quantization Methods 0.000 claims description 68
- 239000011159 matrix material Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 230000009466 transformation Effects 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims 2
- 238000011426 transformation method Methods 0.000 claims 1
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012103806A JP2013038768A (ja) | 2011-07-13 | 2012-04-27 | 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム |
| US14/232,214 US20140133553A1 (en) | 2011-07-13 | 2012-07-11 | Apparatus, method, and program for coding image and apparatus, method, and program for decoding image |
| PCT/JP2012/004469 WO2013008458A1 (en) | 2011-07-13 | 2012-07-11 | Apparatus, method, and program for coding image and apparatus, method, and program for decoding image |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011155011 | 2011-07-13 | ||
| JP2011155011 | 2011-07-13 | ||
| JP2012103806A JP2013038768A (ja) | 2011-07-13 | 2012-04-27 | 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013038768A JP2013038768A (ja) | 2013-02-21 |
| JP2013038768A5 true JP2013038768A5 (enExample) | 2015-09-10 |
Family
ID=47505761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012103806A Pending JP2013038768A (ja) | 2011-07-13 | 2012-04-27 | 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20140133553A1 (enExample) |
| JP (1) | JP2013038768A (enExample) |
| WO (1) | WO2013008458A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096052B (zh) | 2011-11-04 | 2015-11-25 | 华为技术有限公司 | 一种图像编码、解码的方法和装置 |
| WO2015128222A1 (en) * | 2014-02-27 | 2015-09-03 | Thomson Licensing | Method for encoding and decoding a picture and corresponding devices |
| EP3723085B1 (en) * | 2016-03-21 | 2022-11-16 | Huawei Technologies Co., Ltd. | Adaptive quantization of weighted matrix coefficients |
| WO2018037737A1 (ja) * | 2016-08-24 | 2018-03-01 | ソニー株式会社 | 画像処理装置、画像処理方法、及びプログラム |
| CN111684809B (zh) | 2017-12-15 | 2022-08-19 | Lg电子株式会社 | 基于变换的图像编码方法和用于该方法的装置 |
| JP7267785B2 (ja) * | 2019-03-11 | 2023-05-02 | キヤノン株式会社 | 画像復号装置、画像復号方法、及びプログラム |
| JP2020150338A (ja) | 2019-03-11 | 2020-09-17 | キヤノン株式会社 | 画像復号装置、画像復号方法、及びプログラム |
| WO2022063040A1 (zh) | 2020-09-27 | 2022-03-31 | 腾讯科技(深圳)有限公司 | 视频编解码方法、装置及设备 |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984626A (en) * | 1975-08-01 | 1976-10-05 | Bell Telephone Laboratories, Incorporated | Picture signal coder |
| US4851906A (en) * | 1986-11-04 | 1989-07-25 | Nec Corporation | Data compression using orthogonal transform and vector quantization |
| JPH0217777A (ja) * | 1988-07-06 | 1990-01-22 | Toshiba Corp | 画像伝送方式 |
| CA2014935C (en) * | 1989-05-04 | 1996-02-06 | James D. Johnston | Perceptually-adapted image coding system |
| JP2560873B2 (ja) * | 1990-02-28 | 1996-12-04 | 日本ビクター株式会社 | 直交変換符号化復号化方法 |
| US5568278A (en) * | 1991-03-19 | 1996-10-22 | Olympus Optical Co., Ltd. | Image data coding and decoding method and apparatus with a plurality of DCT's, quantizers, and VLC's |
| JPH04326255A (ja) * | 1991-04-25 | 1992-11-16 | Canon Inc | 画像符号化方法及び装置 |
| DE69225859T2 (de) * | 1991-10-02 | 1998-12-03 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Orthogonaltransformationskodierer |
| JPH05316360A (ja) * | 1992-05-14 | 1993-11-26 | Fuji Xerox Co Ltd | 画像信号の符号化復号装置 |
| EP0586225B1 (en) * | 1992-08-31 | 1998-12-23 | Victor Company Of Japan, Ltd. | Orthogonal transform coding apparatus and decoding apparatus |
| DE69434989T2 (de) * | 1993-03-29 | 2008-02-14 | Canon K.K. | Verfahren zur Kontrolle der Datenmenge und Kodierer zur Durchführung derselben |
| KR960010196B1 (ko) * | 1993-06-04 | 1996-07-26 | 배순훈 | 인간의 시각특성을 이용한 디씨(dc) 변환계수 양자화기 |
| US5517327A (en) * | 1993-06-30 | 1996-05-14 | Minolta Camera Kabushiki Kaisha | Data processor for image data using orthogonal transformation |
| JP2526505B2 (ja) * | 1993-09-28 | 1996-08-21 | 日本電気株式会社 | 画像処理装置 |
| US5978514A (en) * | 1994-11-10 | 1999-11-02 | Kabushiki Kaisha Toshiba | Image data coding and decoding system for efficiently compressing information using the shape and position of the image content |
| US6249614B1 (en) * | 1998-03-06 | 2001-06-19 | Alaris, Inc. | Video compression and decompression using dynamic quantization and/or encoding |
| US6658157B1 (en) * | 1999-06-29 | 2003-12-02 | Sony Corporation | Method and apparatus for converting image information |
| US6738074B2 (en) * | 1999-12-29 | 2004-05-18 | Texas Instruments Incorporated | Image compression system and method |
| US6882685B2 (en) * | 2001-09-18 | 2005-04-19 | Microsoft Corporation | Block transform and quantization for image and video coding |
| JP4447197B2 (ja) * | 2002-01-07 | 2010-04-07 | 三菱電機株式会社 | 動画像符号化装置および動画像復号装置 |
| US7376280B2 (en) * | 2002-07-14 | 2008-05-20 | Apple Inc | Video encoding and decoding |
| US7003170B1 (en) * | 2002-09-20 | 2006-02-21 | Pegasus Imaging Corporation | Methods and apparatus for improving quality of block-transform coded images |
| JP4146444B2 (ja) * | 2005-03-16 | 2008-09-10 | 株式会社東芝 | 動画像符号化の方法及び装置 |
| KR100772391B1 (ko) * | 2006-01-23 | 2007-11-01 | 삼성전자주식회사 | 직교 변환 및 벡터 양자화에 기반한 동영상 부호화 및복호화 방법과 이를 이용한 장치 |
| BRPI0621340A2 (pt) * | 2006-02-13 | 2011-12-06 | Toshiba Kk Toshiba Corp | método e aparelho e programa de codificação/decodificação de vìdeo |
| EP3179720B1 (en) * | 2006-03-16 | 2019-07-24 | Huawei Technologies Co., Ltd. | Quantization method and apparatus in encoding/decoding |
| WO2007104266A1 (fr) * | 2006-03-16 | 2007-09-20 | Huawei Technologies Co., Ltd. | Procédé et appareil de quantification adaptative dans une procédure de codage |
| JP4956612B2 (ja) * | 2006-10-12 | 2012-06-20 | 株式会社東芝 | 画像符号化装置及び画像符号化方法 |
| WO2010027170A2 (ko) * | 2008-09-03 | 2010-03-11 | 에스케이텔레콤 주식회사 | 예측 방향 전환과 선택적 부호화를 이용한 영상 부호화/복호화 장치 및 방법 |
| EP2495973B1 (en) * | 2009-10-30 | 2019-02-27 | Sun Patent Trust | Decoding method, decoder apparatus, encoding method, and encoder apparatus |
| WO2011083573A1 (ja) * | 2010-01-07 | 2011-07-14 | 株式会社 東芝 | 動画像符号化装置及び動画像復号化装置 |
| JP5741076B2 (ja) * | 2010-12-09 | 2015-07-01 | ソニー株式会社 | 画像処理装置及び画像処理方法 |
-
2012
- 2012-04-27 JP JP2012103806A patent/JP2013038768A/ja active Pending
- 2012-07-11 WO PCT/JP2012/004469 patent/WO2013008458A1/en not_active Ceased
- 2012-07-11 US US14/232,214 patent/US20140133553A1/en not_active Abandoned
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