BE848684A - Procede de codage-digital de longueur courante avec reduction des redondances, pour la transmission d'informations d'images codees en binaire - Google Patents

Procede de codage-digital de longueur courante avec reduction des redondances, pour la transmission d'informations d'images codees en binaire

Info

Publication number
BE848684A
BE848684A BE172641A BE172641A BE848684A BE 848684 A BE848684 A BE 848684A BE 172641 A BE172641 A BE 172641A BE 172641 A BE172641 A BE 172641A BE 848684 A BE848684 A BE 848684A
Authority
BE
Belgium
Prior art keywords
redundancies
redundancy
transmission
image information
encoded image
Prior art date
Application number
BE172641A
Other languages
English (en)
French (fr)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19752552751 external-priority patent/DE2552751C2/de
Application filed filed Critical
Publication of BE848684A publication Critical patent/BE848684A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • 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)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Signal Processing For Recording (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
BE172641A 1975-11-25 1976-11-24 Procede de codage-digital de longueur courante avec reduction des redondances, pour la transmission d'informations d'images codees en binaire BE848684A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752552751 DE2552751C2 (de) 1975-11-25 Verfahren zur digitalen Lauflängencodierung mit Redundanzreduktion für die Übertragung von binär codierten Bildinformationen

Publications (1)

Publication Number Publication Date
BE848684A true BE848684A (fr) 1977-03-16

Family

ID=5962537

Family Applications (1)

Application Number Title Priority Date Filing Date
BE172641A BE848684A (fr) 1975-11-25 1976-11-24 Procede de codage-digital de longueur courante avec reduction des redondances, pour la transmission d'informations d'images codees en binaire

Country Status (10)

Country Link
US (1) US4121259A (sv)
JP (1) JPS5816669B2 (sv)
AU (1) AU503988B2 (sv)
BE (1) BE848684A (sv)
CA (1) CA1103355A (sv)
DK (1) DK527876A (sv)
FR (1) FR2333386A1 (sv)
GB (1) GB1565054A (sv)
NL (1) NL7613048A (sv)
SE (1) SE406407B (sv)

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US4316222A (en) * 1979-12-07 1982-02-16 Ncr Canada Ltd. - Ncr Canada Ltee Method and apparatus for compression and decompression of digital image data
US4506325A (en) * 1980-03-24 1985-03-19 Sperry Corporation Reflexive utilization of descriptors to reconstitute computer instructions which are Huffman-like encoded
US4360840A (en) * 1980-05-13 1982-11-23 Am International, Inc. Real time data compression/decompression scheme for facsimile transmission system
CA1189974A (en) * 1980-08-04 1985-07-02 Nippon Electric Co., Ltd. Code conversion system
JPS5799083A (en) * 1980-12-12 1982-06-19 Hitachi Ltd Coding method
US4420771A (en) * 1981-02-09 1983-12-13 Bell Telephone Laboratories, Incorporated Technique for encoding multi-level signals
AU555476B2 (en) * 1981-10-15 1986-09-25 Motorola, Inc. Binary encoding
JPS58129876A (ja) * 1981-12-29 1983-08-03 Fujitsu Ltd フアクシミリ装置
JPS5937773A (ja) * 1982-08-26 1984-03-01 Canon Inc ランレングス符号復号装置
US4467363A (en) * 1982-09-27 1984-08-21 International Business Machines Corporation Graphic data compression
GB8313331D0 (en) * 1983-05-14 1983-06-22 Int Computers Ltd Decoding run-length encoded data
US4578704A (en) * 1983-06-20 1986-03-25 At&T Bell Laboratories Image coding technique
US4574382A (en) * 1983-10-05 1986-03-04 International Business Machines Corporation Variable length character code system
US4568983A (en) * 1983-12-07 1986-02-04 The Mead Corporation Image data compression/decompression
US4610027A (en) * 1983-12-30 1986-09-02 International Business Machines Corporation Method for converting a bit map of an image to a run length or run end representation
JPH0644712B2 (ja) * 1984-05-22 1994-06-08 株式会社アドバンス 信号処理方式
US4796003A (en) * 1984-06-28 1989-01-03 American Telephone And Telegraph Company Data compaction
US4646356A (en) * 1984-06-29 1987-02-24 International Business Machines Corporation Method for converting a bit map of an image to a run length or run end representation
US4626829A (en) * 1985-08-19 1986-12-02 Intelligent Storage Inc. Data compression using run length encoding and statistical encoding
US5027376A (en) * 1985-10-30 1991-06-25 Microcom Systems, Inc. Data telecommunications system and method for transmitting compressed data
FR2591050B1 (fr) * 1985-12-04 1990-07-20 Thomson Cgr Procede et dispositif de compression par codage conditionnel d'images numeriques sans perte d'informations
JP2672521B2 (ja) * 1987-09-21 1997-11-05 株式会社東芝 画像処理方法
US4813056A (en) * 1987-12-08 1989-03-14 General Electric Company Modified statistical coding of digital signals
US4821290A (en) * 1988-02-09 1989-04-11 General Electric Company Decoder for digital signal codes
US5056113A (en) * 1988-09-22 1991-10-08 Megasoft Inc. Data communication system
US5146221A (en) * 1989-01-13 1992-09-08 Stac, Inc. Data compression apparatus and method
US5532694A (en) * 1989-01-13 1996-07-02 Stac Electronics, Inc. Data compression apparatus and method using matching string searching and Huffman encoding
US5249066A (en) * 1989-02-14 1993-09-28 Fujitsu Limited Method and system for writing and reading coded data
WO1991017646A2 (de) * 1990-08-07 1991-11-28 Josef Dirr Bild-vorlagencodierung beispielsweise für telefax und farbfernsehen
JPH0773286B2 (ja) * 1991-05-27 1995-08-02 メガソフト株式会社 データ伝送方法
JPH05199420A (ja) * 1991-10-25 1993-08-06 Minolta Camera Co Ltd 符号化方式
US5576835A (en) * 1992-02-24 1996-11-19 Dirr; Josef Method for run-length coding for shortening transmission time
KR0162197B1 (ko) * 1992-05-30 1998-12-15 강진구 영상데이타의 가변장부호와/복호화방법 및 장치
WO1994000973A2 (de) * 1992-11-06 1994-01-20 Josef Dirr Verfahren zur codierung und übertragung von information
JP3651941B2 (ja) * 1994-11-28 2005-05-25 キヤノン株式会社 画像再生装置
US5727036A (en) * 1995-11-22 1998-03-10 Mitsubishi Semiconductor America, Inc. High bit rate start code searching and detecting circuit and method
US5751231A (en) * 1996-06-26 1998-05-12 Intel Corporation Method and apparatus for run-length encoding using special long-run codes
US6075470A (en) * 1998-02-26 2000-06-13 Research In Motion Limited Block-wise adaptive statistical data compressor
US6118904A (en) * 1998-08-27 2000-09-12 The United States Of America As Represented By The National Security Agency Method of encoding data to minimize the number of codewords
KR20040054206A (ko) * 2002-12-18 2004-06-25 삼성전자주식회사 복잡도를 줄인 코드 테이블을 사용하는 복조 장치 및 그방법
KR100579587B1 (ko) * 2003-06-30 2006-05-15 주식회사 대우일렉트로닉스 홀로그래픽 재생 데이터 압축 장치 및 방법
JP5216347B2 (ja) * 2008-02-04 2013-06-19 株式会社ニューフレアテクノロジー 描画装置及び描画データの変換方法
WO2014150056A1 (en) 2013-03-15 2014-09-25 Numbergun Llc Improvements for base64 encoding and decoding
CN108777800A (zh) * 2018-06-25 2018-11-09 广州科政数码科技有限公司 电子货架标签图像数据的压缩，解压，处理方法及系统

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US3560639A (en) * 1966-10-03 1971-02-02 Xerox Corp Cascade run length encoding technique
US3748379A (en) * 1970-01-22 1973-07-24 Electronic Image Sys Corp Run length coding technique
US3739085A (en) * 1971-07-09 1973-06-12 Addressograph Multigraph Coding technique
JPS5135328B2 (sv) * 1971-09-10 1976-10-01
JPS5129354B2 (sv) * 1972-02-17 1976-08-25
US3830965A (en) * 1973-01-03 1974-08-20 Eg & G Inc Apparatus and method for transmitting bandwidth compressed digital signal representation of a visible image

Also Published As

Publication number Publication date
AU1973976A (en) 1978-05-25
JPS5816669B2 (ja) 1983-04-01
CA1103355A (en) 1981-06-16
US4121259A (en) 1978-10-17
SE7612829L (sv) 1977-05-26
JPS5266315A (en) 1977-06-01
NL7613048A (nl) 1977-05-27
DE2552751B1 (de) 1977-03-31
GB1565054A (en) 1980-04-16
DK527876A (da) 1977-05-26
SE406407B (sv) 1979-02-05
FR2333386A1 (fr) 1977-06-24
FR2333386B3 (sv) 1980-10-17
AU503988B2 (en) 1979-09-27

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