DE69222711D1 - Kodier- und Dekodierverfahren zur Verwendung in Faksimilegeräten - Google Patents
Kodier- und Dekodierverfahren zur Verwendung in FaksimilegerätenInfo
- Publication number
- DE69222711D1 DE69222711D1 DE69222711T DE69222711T DE69222711D1 DE 69222711 D1 DE69222711 D1 DE 69222711D1 DE 69222711 T DE69222711 T DE 69222711T DE 69222711 T DE69222711 T DE 69222711T DE 69222711 D1 DE69222711 D1 DE 69222711D1
- Authority
- DE
- Germany
- Prior art keywords
- coding
- decoding methods
- facsimile devices
- facsimile
- devices
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/005—Statistical coding, e.g. Huffman, run length coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
- H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Image Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3192919A JP2912736B2 (ja) | 1991-08-01 | 1991-08-01 | 符号化および復号化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69222711D1 true DE69222711D1 (de) | 1997-11-20 |
DE69222711T2 DE69222711T2 (de) | 1998-03-26 |
Family
ID=16299164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69222711T Expired - Fee Related DE69222711T2 (de) | 1991-08-01 | 1992-07-31 | Kodier- und Dekodierverfahren zur Verwendung in Faksimilegeräten |
Country Status (4)
Country | Link |
---|---|
US (1) | US5587798A (de) |
EP (1) | EP0526249B1 (de) |
JP (1) | JP2912736B2 (de) |
DE (1) | DE69222711T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3083001B2 (ja) * | 1992-07-31 | 2000-09-04 | キヤノン株式会社 | 画像通信装置 |
US5926576A (en) * | 1994-03-30 | 1999-07-20 | Newton; Dale C. | Imaging method and system concatenating image data values to form an integer, partition the integer, and arithmetically encode bit position counts of the integer |
JP3619025B2 (ja) * | 1998-09-18 | 2005-02-09 | キヤノン株式会社 | 符号化方法及び符号化装置 |
US7203373B2 (en) * | 2001-10-30 | 2007-04-10 | Texas Instruments Incorporated | Image and video coding with redundant run-length-level-last codewords removed |
US20050185852A1 (en) * | 2004-02-20 | 2005-08-25 | Jiliang Song | Method and apparatus to generate complex borders |
JP5190458B2 (ja) * | 2007-09-26 | 2013-04-24 | パナソニック株式会社 | データ処理装置及び方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56116367A (en) * | 1980-02-18 | 1981-09-12 | Nippon Telegr & Teleph Corp <Ntt> | Code conversion system for facsimile signal |
JPS56116369A (en) * | 1980-02-18 | 1981-09-12 | Nippon Telegr & Teleph Corp <Ntt> | Code conversion system for facsimile signal |
JPS6051370A (ja) * | 1983-08-31 | 1985-03-22 | Oki Electric Ind Co Ltd | 画像情報符号化処理装置 |
JPS60251763A (ja) * | 1984-05-28 | 1985-12-12 | Nec Corp | フアクシミリ情報の拡大縮小回路 |
US4688100A (en) * | 1984-10-08 | 1987-08-18 | Canon Kabushiki Kaisha | Video data encoding/decoding apparatus |
DE3585939D1 (de) * | 1984-10-24 | 1992-06-04 | Ibm | Verfahren zur bildvergroesserung von in laufdarstellungsform gespeicherten bildern. |
GB2172464B (en) * | 1985-01-31 | 1989-02-01 | Canon Kk | Image transmission apparatus |
JPS6214578A (ja) * | 1985-07-11 | 1987-01-23 | Nec Corp | フアクシミリ信号の符号変換方式 |
JPS62195979A (ja) * | 1986-02-24 | 1987-08-29 | Mitsubishi Electric Corp | フアクシミリ符号変換装置 |
JPS63250278A (ja) * | 1987-04-06 | 1988-10-18 | Matsushita Graphic Commun Syst Inc | 画像情報符号化方法 |
JPH01248874A (ja) * | 1988-03-30 | 1989-10-04 | Matsushita Graphic Commun Syst Inc | 画像情報処理方法 |
-
1991
- 1991-08-01 JP JP3192919A patent/JP2912736B2/ja not_active Expired - Fee Related
-
1992
- 1992-07-31 DE DE69222711T patent/DE69222711T2/de not_active Expired - Fee Related
- 1992-07-31 EP EP92307027A patent/EP0526249B1/de not_active Expired - Lifetime
-
1995
- 1995-11-13 US US08/556,571 patent/US5587798A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0526249A3 (de) | 1994-03-02 |
DE69222711T2 (de) | 1998-03-26 |
EP0526249A2 (de) | 1993-02-03 |
US5587798A (en) | 1996-12-24 |
JPH0537794A (ja) | 1993-02-12 |
EP0526249B1 (de) | 1997-10-15 |
JP2912736B2 (ja) | 1999-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |