IT1155650B - Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini - Google Patents

Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini

Info

Publication number
IT1155650B
IT1155650B IT67351/82A IT6735182A IT1155650B IT 1155650 B IT1155650 B IT 1155650B IT 67351/82 A IT67351/82 A IT 67351/82A IT 6735182 A IT6735182 A IT 6735182A IT 1155650 B IT1155650 B IT 1155650B
Authority
IT
Italy
Prior art keywords
decompression
compression
equipment
image information
digital image
Prior art date
Application number
IT67351/82A
Other languages
English (en)
Other versions
IT8267351A0 (it
Inventor
Mario Caneschi
Giorgio Tadini
Original Assignee
Olivetti & Co Spa
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
Application filed by Olivetti & Co Spa filed Critical Olivetti & Co Spa
Priority to IT67351/82A priority Critical patent/IT1155650B/it
Publication of IT8267351A0 publication Critical patent/IT8267351A0/it
Priority to US06/473,966 priority patent/US4571634A/en
Priority to EP83301404A priority patent/EP0089797B1/en
Priority to DE8383301404T priority patent/DE3382338D1/de
Priority to JP58046975A priority patent/JPS58177073A/ja
Application granted granted Critical
Publication of IT1155650B publication Critical patent/IT1155650B/it

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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • 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
    • H04N1/21—Intermediate information storage
    • H04N1/2166—Intermediate information storage for mass storage, e.g. in document filing systems
    • 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
    • H04N1/4105—Bandwidth or redundancy reduction for halftone screened pictures
    • 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
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
    • H04N1/4175—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding involving the encoding of tone transitions with respect to tone transitions in a reference line
IT67351/82A 1982-03-19 1982-03-19 Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini IT1155650B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT67351/82A IT1155650B (it) 1982-03-19 1982-03-19 Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini
US06/473,966 US4571634A (en) 1982-03-19 1983-03-10 Digital image information compression and decompression method and apparatus
EP83301404A EP0089797B1 (en) 1982-03-19 1983-03-15 Digital image information compression and decompression method and apparatus
DE8383301404T DE3382338D1 (de) 1982-03-19 1983-03-15 Verfahren und apparat zur kompression und ausdehnung digitaler bildinformation.
JP58046975A JPS58177073A (ja) 1982-03-19 1983-03-19 デジタルイメージ情報符号化／復号化方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67351/82A IT1155650B (it) 1982-03-19 1982-03-19 Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini

Publications (2)

Publication Number Publication Date
IT8267351A0 IT8267351A0 (it) 1982-03-19
IT1155650B true IT1155650B (it) 1987-01-28

Family

ID=11301671

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67351/82A IT1155650B (it) 1982-03-19 1982-03-19 Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini

Country Status (5)

Country Link
US (1) US4571634A (it)
EP (1) EP0089797B1 (it)
JP (1) JPS58177073A (it)
DE (1) DE3382338D1 (it)
IT (1) IT1155650B (it)

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FR2551282B1 (fr) * 1983-08-30 1994-05-13 Canon Kk Systeme de traitement d'image
US4695895A (en) * 1983-11-02 1987-09-22 Canon Kabushiki Kaisha Image processing system
JPS60251775A (ja) * 1984-05-28 1985-12-12 Ricoh Co Ltd デ−タ転送方式
EP0180871A3 (de) * 1984-10-29 1987-10-07 Siemens Aktiengesellschaft Fernkopiergerät
FR2580095A1 (en) * 1985-04-05 1986-10-10 Uap Incendie Accidents Method and device for acquisition, local archiving or long range transmission, with possible remote archiving, and the subsequent reproduction, from the local archiving or the remote archiving, of documents constituted by texts and/or images
GB2175769B (en) * 1985-04-27 1989-12-28 Sony Corp Method and apparatus for processing an image signal
US4827349A (en) * 1985-04-30 1989-05-02 Canon Kabushiki Kaisha Communication terminal device
US4729034A (en) * 1985-06-27 1988-03-01 Netexpress Systems, Inc. Method and apparatus for selection of a coding reference line for two-dimensional coding of image data representing screened images
US4843632A (en) * 1986-05-09 1989-06-27 Prodigy Systems Corporation Compressed image expansion system
US4794461A (en) * 1986-09-10 1988-12-27 Netexpress Systems, Inc. Method and apparatus for block coding vertical mode codes for enhanced compression of image data
US5170445A (en) * 1987-08-04 1992-12-08 Brooktree Corporation Document decompressing system
US4968135A (en) * 1987-08-17 1990-11-06 Digital Equipment Corporation System for producing pixel image data from CCITT encoded pixel data
JPH02501699A (ja) * 1987-08-17 1990-06-07 ディジタル　イクイプメント　コーポレーション Ｃｃｉｔｔ符号化された絵素から絵素像データを生成するシステム
JP2670273B2 (ja) * 1987-09-30 1997-10-29 株式会社東芝 画像処理装置
GB8900368D0 (en) * 1989-01-09 1989-03-08 Crosfield Electronics Ltd Bit map modification
EP0450852B1 (en) * 1990-03-27 1997-01-22 Canon Kabushiki Kaisha Color image communication apparatus
JPH0721476Y2 (ja) * 1991-07-26 1995-05-17 金井 宏之 電子部品用リール
JPH0591313A (ja) * 1991-09-27 1993-04-09 Minolta Camera Co Ltd フアクシミリ装置
CA2063621C (en) 1991-10-03 1999-03-16 Wayne M. Doran Method and modular system for high speed processing of item images
US5390262A (en) * 1991-10-03 1995-02-14 Ncr Corporation Method for splitting and configuring a multi-channel image processing system
CA2063495C (en) 1991-10-03 1999-03-30 John O. G. Vieth Method and system for compressing data in a multi-channel image processing system
JPH0620370U (ja) * 1992-04-07 1994-03-15 金山化成株式会社 キャリヤテープ用リール
US6260082B1 (en) * 1998-12-23 2001-07-10 Bops, Inc. Methods and apparatus for providing data transfer control
EP1433121A4 (en) * 2001-09-12 2007-03-21 Bonet Jeremy S De TRANSFORMATION TO INCREASE THE COMPRESSIBILITY OF IMAGES WITH A MINIMUM OF VISUAL DISTORTION BASED ON LEMPEL-ZIV METHODS
US6947604B2 (en) * 2002-01-17 2005-09-20 Intel Corporation Method and hardware to implement two-dimensional compression
JP4302661B2 (ja) * 2005-05-02 2009-07-29 富士通マイクロエレクトロニクス株式会社 画像処理システム
US7835784B2 (en) * 2005-09-21 2010-11-16 Medtronic Navigation, Inc. Method and apparatus for positioning a reference frame
US8149469B2 (en) * 2007-08-03 2012-04-03 Canon Kabushiki Kaisha Image reading apparatus and image reading method
US7986848B2 (en) * 2007-09-11 2011-07-26 International Business Machines Corporation Methods, systems, and computer program products for a multi-resolution storage scheme for historical data
WO2017136083A1 (en) 2016-02-05 2017-08-10 Google Inc. Compressing images using neural networks

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US3668685A (en) * 1970-02-20 1972-06-06 Harris Intertype Corp Composing method and apparatus
US3947627A (en) * 1972-10-30 1976-03-30 Matsushita Electric Industrial Company, Limited Facsimile system
US3927251A (en) * 1973-05-18 1975-12-16 Rca Corp Method and apparatus for the detection and control of errors in two-dimensionally compressed image data
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US4013828A (en) * 1976-02-20 1977-03-22 Bell Telephone Laboratories, Incorporated Method and arrangement for reducing the bandwidth and/or time required to transmit a dithered image
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US4092665A (en) * 1976-12-29 1978-05-30 Xerox Corporation Method and means for extracting variable length data from fixed length bytes
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CA1128645A (en) * 1978-07-31 1982-07-27 Yasuhiro Yamazaki Transmission method and system for facsimile signal
JPS5599880A (en) * 1979-01-24 1980-07-30 Kokusai Denshin Denwa Co Ltd <Kdd> Coding system suitable for one and two dimension
JPS55102968A (en) * 1979-01-31 1980-08-06 Sharp Corp Run-length decoding system for mh code
JPS5666972A (en) * 1979-11-05 1981-06-05 Fujitsu Ltd Picture signal decoding system
JPS5616376A (en) * 1979-12-12 1981-02-17 Ricoh Co Ltd Coding device
JPS5737976A (en) * 1980-08-13 1982-03-02 Ricoh Co Ltd Code converter
JPS5755662A (en) * 1980-09-19 1982-04-02 Sanyo Electric Co Ltd Facsimile equipment
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US4420771A (en) * 1981-02-09 1983-12-13 Bell Telephone Laboratories, Incorporated Technique for encoding multi-level signals

Also Published As

Publication number Publication date
EP0089797B1 (en) 1991-07-17
JPS58177073A (ja) 1983-10-17
IT8267351A0 (it) 1982-03-19
DE3382338D1 (de) 1991-08-22
EP0089797A3 (en) 1986-05-14
US4571634A (en) 1986-02-18
EP0089797A2 (en) 1983-09-28
JPH0436504B2 (it) 1992-06-16

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970329