PL374500A1 - Ulepszenie kompresji przy transkodowaniu obrazów JPEG - Google Patents
Ulepszenie kompresji przy transkodowaniu obrazów JPEGInfo
- Publication number
- PL374500A1 PL374500A1 PL03374500A PL37450003A PL374500A1 PL 374500 A1 PL374500 A1 PL 374500A1 PL 03374500 A PL03374500 A PL 03374500A PL 37450003 A PL37450003 A PL 37450003A PL 374500 A1 PL374500 A1 PL 374500A1
- Authority
- PL
- Poland
- Prior art keywords
- data
- transcoding
- quantization
- image data
- zero
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/007—Transform coding, e.g. discrete cosine transform
-
- 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
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Discrete Mathematics (AREA)
- Signal Processing (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Panels For Use In Building Construction (AREA)
- Image Processing (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/263,653 US7260265B2 (en) | 2002-10-04 | 2002-10-04 | Enhancing compression while transcoding JPEG images |
Publications (1)
Publication Number | Publication Date |
---|---|
PL374500A1 true PL374500A1 (pl) | 2005-10-31 |
Family
ID=32042041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL03374500A PL374500A1 (pl) | 2002-10-04 | 2003-09-12 | Ulepszenie kompresji przy transkodowaniu obrazów JPEG |
Country Status (12)
Country | Link |
---|---|
US (2) | US7260265B2 (pl) |
EP (1) | EP1547017B1 (pl) |
JP (1) | JP4072160B2 (pl) |
KR (1) | KR100745429B1 (pl) |
CN (1) | CN100336079C (pl) |
AT (1) | ATE500571T1 (pl) |
AU (1) | AU2003263355A1 (pl) |
CA (1) | CA2498665C (pl) |
DE (1) | DE60336243D1 (pl) |
PL (1) | PL374500A1 (pl) |
TW (1) | TWI234744B (pl) |
WO (1) | WO2004032022A2 (pl) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69934829T2 (de) | 1999-11-09 | 2007-06-28 | OpenTV, Inc., San Francisco | Ereignisbuchung |
US8526751B2 (en) * | 2001-08-24 | 2013-09-03 | International Business Machines Corporation | Managing image storage size |
US8352991B2 (en) * | 2002-12-09 | 2013-01-08 | Thomson Licensing | System and method for modifying a video stream based on a client or network environment |
JP4845382B2 (ja) * | 2004-02-06 | 2011-12-28 | キヤノン株式会社 | 画像処理装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体 |
EP1766783B1 (en) | 2004-07-14 | 2011-11-02 | Slipstream Data Inc. | Method, system and computer program product for optimization of data compression |
US7570827B2 (en) | 2004-07-14 | 2009-08-04 | Slipstream Data Inc. | Method, system and computer program product for optimization of data compression with cost function |
US7502514B2 (en) * | 2004-11-15 | 2009-03-10 | Smith Micro Software, Inc. | System and method for lossless compression of already compressed files |
JP4034317B2 (ja) * | 2005-03-29 | 2008-01-16 | 富士通株式会社 | 画像符号化装置 |
TWI314424B (en) * | 2006-06-23 | 2009-09-01 | Marketech Int Corp | System and method for image signal contrast adjustment and overflow compensation |
US8260070B1 (en) * | 2006-10-03 | 2012-09-04 | Adobe Systems Incorporated | Method and system to generate a compressed image utilizing custom probability tables |
US8213498B2 (en) * | 2007-05-31 | 2012-07-03 | Qualcomm Incorporated | Bitrate reduction techniques for image transcoding |
CN101923559B (zh) * | 2010-03-24 | 2012-10-10 | 深圳市万兴软件有限公司 | 一种图像文件管理方法和系统 |
TWI690211B (zh) * | 2011-04-15 | 2020-04-01 | 美商杜比實驗室特許公司 | 高動態範圍影像的解碼方法、其處理器非暫態可讀取媒體及電腦程式產品 |
US8334911B2 (en) | 2011-04-15 | 2012-12-18 | Dolby Laboratories Licensing Corporation | Encoding, decoding, and representing high dynamic range images |
JP5523413B2 (ja) * | 2011-08-25 | 2014-06-18 | キヤノン株式会社 | 画像処理装置、画像処理方法及びプログラム |
US9111329B2 (en) | 2011-12-26 | 2015-08-18 | Samsung Electronics Co., Ltd | Method and apparatus for compressing images |
JP5642105B2 (ja) * | 2012-03-29 | 2014-12-17 | 京セラドキュメントソリューションズ株式会社 | 画像処理装置および画像形成装置 |
RU2616548C2 (ru) * | 2012-10-19 | 2017-04-17 | КОЛЕН, Жан-Клод | Обратимый способ преобразования файла, закодированного первым кодированием, в файл, закодированный вторым кодированием |
CN103400342A (zh) * | 2013-07-04 | 2013-11-20 | 西安电子科技大学 | 基于混合色阶映射及压缩系数的高动态范围图像重构方法 |
JP2017158183A (ja) * | 2016-02-29 | 2017-09-07 | 大学共同利用機関法人情報・システム研究機構 | 画像処理装置 |
CN114071141A (zh) * | 2020-08-06 | 2022-02-18 | 华为技术有限公司 | 一种图像处理方法及其设备 |
US11871036B2 (en) | 2020-09-24 | 2024-01-09 | Korea University Research And Business Foundation | Apparatus and method for compressing JPEG images |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US603137A (en) * | 1898-04-26 | George henry grundy | ||
US5339368A (en) * | 1991-11-21 | 1994-08-16 | Unisys Corporation | Document image compression system and method |
US5583656A (en) * | 1992-12-31 | 1996-12-10 | Eastman Kodak Company | Methods and apparatus for attaching compressed look-up table (LUT) representations of N to M-dimensional transforms to image data and for processing image data utilizing the attached compressed LUTs |
US5666161A (en) * | 1993-04-26 | 1997-09-09 | Hitachi, Ltd. | Method and apparatus for creating less amount of compressd image data from compressed still image data and system for transmitting compressed image data through transmission line |
US6031937A (en) | 1994-05-19 | 2000-02-29 | Next Software, Inc. | Method and apparatus for video compression using block and wavelet techniques |
US6195465B1 (en) * | 1994-09-21 | 2001-02-27 | Ricoh Company, Ltd. | Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
US5991451A (en) * | 1995-03-23 | 1999-11-23 | Intel Corporation | Variable-length encoding using code swapping |
US5699458A (en) * | 1995-06-29 | 1997-12-16 | Intel Corporation | Efficient browsing of encoded images |
US5724453A (en) * | 1995-07-10 | 1998-03-03 | Wisconsin Alumni Research Foundation | Image compression system and method having optimized quantization tables |
US5774597A (en) * | 1995-09-05 | 1998-06-30 | Ge Medical Systems, Inc. | Image compression and decompression using overlapped cosine transforms |
US6141452A (en) * | 1996-05-13 | 2000-10-31 | Fujitsu Limited | Apparatus for compressing and restoring image data using wavelet transform |
US6167161A (en) * | 1996-08-23 | 2000-12-26 | Nec Corporation | Lossless transform coding system having compatibility with lossy coding |
SE515535C2 (sv) * | 1996-10-25 | 2001-08-27 | Ericsson Telefon Ab L M | En transkoder |
US6058215A (en) * | 1997-04-30 | 2000-05-02 | Ricoh Company, Ltd. | Reversible DCT for lossless-lossy compression |
US6118820A (en) * | 1998-01-16 | 2000-09-12 | Sarnoff Corporation | Region-based information compaction as for digital images |
US6343153B1 (en) | 1998-04-03 | 2002-01-29 | Matsushita Electric Industrial Co., Ltd. | Coding compression method and coding compression apparatus |
US6222944B1 (en) | 1998-05-07 | 2001-04-24 | Sarnoff Corporation | Down-sampling MPEG image decoder |
US6115689A (en) * | 1998-05-27 | 2000-09-05 | Microsoft Corporation | Scalable audio coder and decoder |
TW455821B (en) * | 1999-09-03 | 2001-09-21 | Ind Tech Res Inst | Signal process method and device |
US6941019B1 (en) * | 2000-05-10 | 2005-09-06 | International Business Machines Corporation | Reentry into compressed data |
US6606418B2 (en) * | 2001-01-16 | 2003-08-12 | International Business Machines Corporation | Enhanced compression of documents |
US6950463B2 (en) * | 2001-06-13 | 2005-09-27 | Microsoft Corporation | Non-compensated transcoding of a video stream |
US8526751B2 (en) * | 2001-08-24 | 2013-09-03 | International Business Machines Corporation | Managing image storage size |
-
2002
- 2002-10-04 US US10/263,653 patent/US7260265B2/en not_active Expired - Fee Related
-
2003
- 2003-09-12 PL PL03374500A patent/PL374500A1/pl unknown
- 2003-09-12 DE DE60336243T patent/DE60336243D1/de not_active Expired - Lifetime
- 2003-09-12 JP JP2004540919A patent/JP4072160B2/ja not_active Expired - Fee Related
- 2003-09-12 CA CA2498665A patent/CA2498665C/en not_active Expired - Fee Related
- 2003-09-12 CN CNB038212927A patent/CN100336079C/zh not_active Expired - Fee Related
- 2003-09-12 KR KR1020057003912A patent/KR100745429B1/ko not_active IP Right Cessation
- 2003-09-12 AT AT03798965T patent/ATE500571T1/de not_active IP Right Cessation
- 2003-09-12 AU AU2003263355A patent/AU2003263355A1/en not_active Abandoned
- 2003-09-12 WO PCT/GB2003/003947 patent/WO2004032022A2/en active Application Filing
- 2003-09-12 EP EP03798965A patent/EP1547017B1/en not_active Expired - Lifetime
- 2003-10-03 TW TW092127472A patent/TWI234744B/zh not_active IP Right Cessation
-
2007
- 2007-04-18 US US11/736,665 patent/US7813575B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2498665A1 (en) | 2004-04-15 |
WO2004032022A3 (en) | 2004-08-26 |
DE60336243D1 (de) | 2011-04-14 |
WO2004032022A2 (en) | 2004-04-15 |
US20040066973A1 (en) | 2004-04-08 |
US7813575B2 (en) | 2010-10-12 |
EP1547017B1 (en) | 2011-03-02 |
CN100336079C (zh) | 2007-09-05 |
JP2006501736A (ja) | 2006-01-12 |
US20070196026A1 (en) | 2007-08-23 |
AU2003263355A1 (en) | 2004-04-23 |
TWI234744B (en) | 2005-06-21 |
AU2003263355A8 (en) | 2004-04-23 |
ATE500571T1 (de) | 2011-03-15 |
KR20050054927A (ko) | 2005-06-10 |
US7260265B2 (en) | 2007-08-21 |
CA2498665C (en) | 2010-12-14 |
JP4072160B2 (ja) | 2008-04-09 |
CN1692375A (zh) | 2005-11-02 |
KR100745429B1 (ko) | 2007-08-02 |
TW200419458A (en) | 2004-10-01 |
EP1547017A2 (en) | 2005-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
DISC | Decisions on discontinuance of the proceedings (taken after the publication of the particulars of the applications) |