JP2008507206A5 - - Google Patents
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- JP2008507206A5 JP2008507206A5 JP2007521538A JP2007521538A JP2008507206A5 JP 2008507206 A5 JP2008507206 A5 JP 2008507206A5 JP 2007521538 A JP2007521538 A JP 2007521538A JP 2007521538 A JP2007521538 A JP 2007521538A JP 2008507206 A5 JP2008507206 A5 JP 2008507206A5
- Authority
- JP
- Japan
- Prior art keywords
- data
- decoding
- bit depth
- rounding
- interframe
- 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
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Claims (2)
- 第１のビットデプスでコード化されフレーム内に表わされるデータ圧縮映像を表すデジタルビットストリームを復号化する方法であって、
第２のより低いビットデプスで復号化することを含み、前記復号化は予測ループにおける処理を含み、該処理はフレーム間データと、フレーム内データのいずれか一方又は両方の符号なしデータの不遍丸めを含む方法。 - フレーム内に表わされるデータ圧縮映像を表すデジタルビットストリームをコード化及び復号化する方法であって、
第１のビットデプスでのコード化であって、予測ループにおける処理を含み、該処理はフレーム間データと、フレーム内データのいずれか一方又は両方の符号なしデータの不遍丸めを含むコード化と、
第２のより低いビットデプスでの復号化であって、予測ループにおける処理を含み、該処理はフレーム間データと、フレーム内データのいずれか一方又は両方の符号なしデータの不遍丸めを含む復号化と、
を含んでなる方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58769904P | 2004-07-13 | 2004-07-13 | |
| PCT/US2005/024552 WO2006017230A1 (en) | 2004-07-13 | 2005-07-12 | Unbiased rounding for video compression |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008507206A JP2008507206A (ja) | 2008-03-06 |
| JP2008507206A5 true JP2008507206A5 (ja) | 2008-09-04 |
Family
ID=34975183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007521538A Pending JP2008507206A (ja) | 2004-07-13 | 2005-07-12 | 画像圧縮のための不遍丸め |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080075166A1 (ja) |
| EP (1) | EP1766995A1 (ja) |
| JP (1) | JP2008507206A (ja) |
| KR (1) | KR20070033343A (ja) |
| CN (1) | CN100542289C (ja) |
| CA (1) | CA2566349A1 (ja) |
| WO (1) | WO2006017230A1 (ja) |
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 |
| WO2006131891A2 (en) * | 2005-06-10 | 2006-12-14 | Nxp B.V. | Alternating up- and down-ward motion vector |
| KR100813258B1 (ko) * | 2005-07-12 | 2008-03-13 | 삼성전자주식회사 | 화상 데이터 부호화 및 복호화 장치 및 방법 |
| KR101045205B1 (ko) * | 2005-07-12 | 2011-06-30 | 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 |
| EP2396967B1 (en) * | 2009-02-11 | 2018-10-10 | InterDigital Madison Patent Holdings | Methods and apparatus for bit depth scalable video encoding and decoding utilizing tone mapping and inverse tone mapping |
| KR101510108B1 (ko) | 2009-08-17 | 2015-04-10 | 삼성전자주식회사 | 영상의 부호화 방법 및 장치, 그 복호화 방법 및 장치 |
| WO2011127964A2 (en) * | 2010-04-13 | 2011-10-20 | 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 |
| EP2984842A1 (en) * | 2013-04-08 | 2016-02-17 | BlackBerry Limited | Methods for reconstructing an encoded video at a bit-depth lower than at which it was encoded |
| 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 |
| 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 |
| 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 |
| CN116708782A (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 |
| EP1193977B1 (en) * | 1997-06-09 | 2003-08-27 | 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 WO PCT/US2005/024552 patent/WO2006017230A1/en active Application Filing
- 2005-07-12 EP EP05770121A patent/EP1766995A1/en not_active Withdrawn
- 2005-07-12 KR KR1020067025385A patent/KR20070033343A/ko not_active Application Discontinuation
- 2005-07-12 JP JP2007521538A patent/JP2008507206A/ja active Pending
- 2005-07-12 US US11/632,365 patent/US20080075166A1/en not_active Abandoned
- 2005-07-12 CN CNB200580020485XA patent/CN100542289C/zh not_active Expired - Fee Related
- 2005-07-12 CA CA002566349A patent/CA2566349A1/en not_active Abandoned
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