CA2566349A1 - Unbiased rounding for video compression - Google Patents
Unbiased rounding for video compression Download PDFInfo
- Publication number
- CA2566349A1 CA2566349A1 CA002566349A CA2566349A CA2566349A1 CA 2566349 A1 CA2566349 A1 CA 2566349A1 CA 002566349 A CA002566349 A CA 002566349A CA 2566349 A CA2566349 A CA 2566349A CA 2566349 A1 CA2566349 A1 CA 2566349A1
- Authority
- CA
- Canada
- Prior art keywords
- data
- rounding
- processing
- unbiased rounding
- decoding
- 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.)
- Abandoned
Links
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- 238000007906 compression Methods 0.000 title description 13
- 238000000034 method Methods 0.000 claims description 34
- 238000004590 computer program Methods 0.000 claims description 5
- 238000013139 quantization Methods 0.000 description 17
- 238000004364 calculation method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000001186 cumulative effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
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- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
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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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
-
- 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
- H04N19/10—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
- H04N19/184—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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58769904P | 2004-07-13 | 2004-07-13 | |
| US60/587,699 | 2004-07-13 | ||
| PCT/US2005/024552 WO2006017230A1 (en) | 2004-07-13 | 2005-07-12 | Unbiased rounding for video compression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2566349A1 true CA2566349A1 (en) | 2006-02-16 |
Family
ID=34975183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002566349A Abandoned CA2566349A1 (en) | 2004-07-13 | 2005-07-12 | Unbiased rounding for video compression |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080075166A1 (enExample) |
| EP (1) | EP1766995A1 (enExample) |
| JP (1) | JP2008507206A (enExample) |
| KR (1) | KR20070033343A (enExample) |
| CN (1) | CN100542289C (enExample) |
| CA (1) | CA2566349A1 (enExample) |
| WO (1) | WO2006017230A1 (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7949044B2 (en) * | 2005-04-12 | 2011-05-24 | Lsi Corporation | Method for coefficient bitdepth limitation, encoder and bitstream generation apparatus |
| JP2008544598A (ja) * | 2005-06-10 | 2008-12-04 | エヌエックスピー ビー ヴィ | 交互の上向き及び下向き動きベクトル |
| KR101045205B1 (ko) * | 2005-07-12 | 2011-06-30 | 삼성전자주식회사 | 화상 데이터 부호화 및 복호화 장치 및 방법 |
| KR100813258B1 (ko) * | 2005-07-12 | 2008-03-13 | 삼성전자주식회사 | 화상 데이터 부호화 및 복호화 장치 및 방법 |
| WO2007116551A1 (ja) | 2006-03-30 | 2007-10-18 | Kabushiki Kaisha Toshiba | 画像符号化装置及び画像符号化方法並びに画像復号化装置及び画像復号化方法 |
| CN101682784A (zh) * | 2007-04-19 | 2010-03-24 | 汤姆逊许可证公司 | 用于帧内预测的自适应参考图片数据生成 |
| KR101365597B1 (ko) * | 2007-10-24 | 2014-02-20 | 삼성전자주식회사 | 영상 부호화장치 및 방법과 그 영상 복호화장치 및 방법 |
| US9338475B2 (en) * | 2008-04-16 | 2016-05-10 | Intel Corporation | Tone mapping for bit-depth scalable video codec |
| US9378751B2 (en) * | 2008-06-19 | 2016-06-28 | Broadcom Corporation | Method and system for digital gain processing in a hardware audio CODEC for audio transmission |
| BRPI1008372A2 (pt) * | 2009-02-11 | 2018-03-06 | Thomson Licensing | métodos e aparelho para codificação e decodificação de vídeo escalável com profundidade de bit utilizando mapeamento de tons e mapeamento inverso de tons |
| KR101510108B1 (ko) | 2009-08-17 | 2015-04-10 | 삼성전자주식회사 | 영상의 부호화 방법 및 장치, 그 복호화 방법 및 장치 |
| EP2559239A2 (en) | 2010-04-13 | 2013-02-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for intra predicting a block, apparatus for reconstructing a block of a picture, apparatus for reconstructing a block of a picture by intra prediction |
| US9521434B2 (en) | 2011-06-09 | 2016-12-13 | Qualcomm Incorporated | Internal bit depth increase in video coding |
| KR101307257B1 (ko) * | 2012-06-28 | 2013-09-12 | 숭실대학교산학협력단 | 영상의 인트라 예측 장치 |
| WO2014165958A1 (en) * | 2013-04-08 | 2014-10-16 | Blackberry Limited | Methods for reconstructing an encoded video at a bit-depth lower than at which it was encoded |
| US9674538B2 (en) * | 2013-04-08 | 2017-06-06 | Blackberry Limited | Methods for reconstructing an encoded video at a bit-depth lower than at which it was encoded |
| US20140301447A1 (en) * | 2013-04-08 | 2014-10-09 | Research In Motion Limited | Methods for reconstructing an encoded video at a bit-depth lower than at which it was encoded |
| WO2014165960A1 (en) * | 2013-04-08 | 2014-10-16 | Blackberry Limited | Methods for reconstructing an encoded video at a bit-depth lower than at which it was encoded |
| CN116708784A (zh) * | 2016-07-12 | 2023-09-05 | 韩国电子通信研究院 | 图像编码/解码方法以及用于该方法的记录介质 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08256341A (ja) * | 1995-03-17 | 1996-10-01 | Sony Corp | 画像信号符号化方法、画像信号符号化装置、画像信号記録媒体、及び画像信号復号化装置 |
| US5696710A (en) * | 1995-12-29 | 1997-12-09 | Thomson Consumer Electronics, Inc. | Apparatus for symmetrically reducing N least significant bits of an M-bit digital signal |
| US6957350B1 (en) * | 1996-01-30 | 2005-10-18 | Dolby Laboratories Licensing Corporation | Encrypted and watermarked temporal and resolution layering in advanced television |
| JPH1022836A (ja) * | 1996-07-02 | 1998-01-23 | Sony Corp | ビット丸め装置 |
| GB9706920D0 (en) * | 1997-04-04 | 1997-05-21 | Snell & Wilcox Ltd | Improvements in digital video signal processing |
| EP1056294B1 (en) * | 1997-06-09 | 2002-10-02 | Hitachi, Ltd. | Image sequence coding method |
| JP2998741B2 (ja) * | 1997-06-09 | 2000-01-11 | 株式会社日立製作所 | 動画像の符号化方法、該方法が記録されたコンピュータ読みとり可能な記録媒体、及び動画像の符号化装置 |
| JPH1169345A (ja) * | 1997-06-11 | 1999-03-09 | Fujitsu Ltd | フレーム間予測動画像符号化装置及び復号装置並びにフレーム間予測動画像符号化方法及び復号方法 |
| US6038576A (en) * | 1997-12-02 | 2000-03-14 | Digital Equipment Corporation | Bit-depth increase by bit replication |
| US6334189B1 (en) * | 1997-12-05 | 2001-12-25 | Jamama, Llc | Use of pseudocode to protect software from unauthorized use |
| JP2000023195A (ja) * | 1998-06-26 | 2000-01-21 | Sony Corp | 画像符号化装置及び方法、並びに画像復号装置及び方法、並びに符号化データ提供媒体 |
| US7047272B2 (en) * | 1998-10-06 | 2006-05-16 | Texas Instruments Incorporated | Rounding mechanisms in processors |
| US7162080B2 (en) * | 2001-02-23 | 2007-01-09 | Zoran Corporation | Graphic image re-encoding and distribution system and method |
| JP4917724B2 (ja) * | 2001-09-25 | 2012-04-18 | 株式会社リコー | 復号方法、復号装置及び画像処理装置 |
| JP4082025B2 (ja) * | 2001-12-18 | 2008-04-30 | 日本電気株式会社 | 圧縮動画像の再符号化方法及び装置 |
| US8009739B2 (en) * | 2003-09-07 | 2011-08-30 | Microsoft Corporation | Intensity estimation/compensation for interlaced forward-predicted fields |
| US7623574B2 (en) * | 2003-09-07 | 2009-11-24 | Microsoft Corporation | Selecting between dominant and non-dominant motion vector predictor polarities |
| US7440633B2 (en) * | 2003-12-19 | 2008-10-21 | Sharp Laboratories Of America, Inc. | Enhancing the quality of decoded quantized images |
-
2005
- 2005-07-12 US US11/632,365 patent/US20080075166A1/en not_active Abandoned
- 2005-07-12 CA CA002566349A patent/CA2566349A1/en not_active Abandoned
- 2005-07-12 JP JP2007521538A patent/JP2008507206A/ja active Pending
- 2005-07-12 EP EP05770121A patent/EP1766995A1/en not_active Withdrawn
- 2005-07-12 WO PCT/US2005/024552 patent/WO2006017230A1/en not_active Ceased
- 2005-07-12 CN CNB200580020485XA patent/CN100542289C/zh not_active Expired - Fee Related
- 2005-07-12 KR KR1020067025385A patent/KR20070033343A/ko not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP1766995A1 (en) | 2007-03-28 |
| JP2008507206A (ja) | 2008-03-06 |
| CN1973549A (zh) | 2007-05-30 |
| CN100542289C (zh) | 2009-09-16 |
| KR20070033343A (ko) | 2007-03-26 |
| US20080075166A1 (en) | 2008-03-27 |
| WO2006017230A1 (en) | 2006-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |
Effective date: 20130712 |