FR2320017A1 - Reduction of information for image coding - uses transmission of every other point with correlation bit describing untransmitted point - Google Patents

Reduction of information for image coding - uses transmission of every other point with correlation bit describing untransmitted point

Info

Publication number
FR2320017A1
FR2320017A1 FR7523621A FR7523621A FR2320017A1 FR 2320017 A1 FR2320017 A1 FR 2320017A1 FR 7523621 A FR7523621 A FR 7523621A FR 7523621 A FR7523621 A FR 7523621A FR 2320017 A1 FR2320017 A1 FR 2320017A1
Authority
FR
France
Prior art keywords
point
image coding
points
reduction
information
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.)
Granted
Application number
FR7523621A
Other languages
French (fr)
Other versions
FR2320017B1 (en
Inventor
Daniel Devimeux
Francois Xavier Stouls
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Priority to FR7523621A priority Critical patent/FR2320017A1/en
Publication of FR2320017A1 publication Critical patent/FR2320017A1/en
Application granted granted Critical
Publication of FR2320017B1 publication Critical patent/FR2320017B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The image coding system scans the object and omits every second scan point. Signals representing these omitted points are formed by taking the average of the two scanned points on each side of it. Interpolation between scanned points separated by a non-scanned point can take place either in one scan direction or in the other orthogonal scan direction. It is accomplished by comparing the reconstructed point levels and the actual levels of points that have been missed out, i.e. not sampled. A correlation bit is added to every point transmitted giving the best simultaneous approximation in the horizontal and vertical directions, that is correlating each non-transmitted point with its four neighbours.
FR7523621A 1975-07-29 1975-07-29 Reduction of information for image coding - uses transmission of every other point with correlation bit describing untransmitted point Granted FR2320017A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7523621A FR2320017A1 (en) 1975-07-29 1975-07-29 Reduction of information for image coding - uses transmission of every other point with correlation bit describing untransmitted point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7523621A FR2320017A1 (en) 1975-07-29 1975-07-29 Reduction of information for image coding - uses transmission of every other point with correlation bit describing untransmitted point

Publications (2)

Publication Number Publication Date
FR2320017A1 true FR2320017A1 (en) 1977-02-25
FR2320017B1 FR2320017B1 (en) 1981-12-31

Family

ID=9158475

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7523621A Granted FR2320017A1 (en) 1975-07-29 1975-07-29 Reduction of information for image coding - uses transmission of every other point with correlation bit describing untransmitted point

Country Status (1)

Country Link
FR (1) FR2320017A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020466A1 (en) * 1978-09-18 1981-01-07 Massachusetts Institute Of Technology Image coding by selective addition of pseudo-random noise to portions of video signal
EP0022405A1 (en) * 1979-07-04 1981-01-14 Thomson-Csf Device for coding video frequency television signals and transmission equipment comprising such a device
FR2475833A1 (en) * 1980-02-07 1981-08-14 Rca Corp METHODS AND DEVICES FOR TRANSMITTING AND RECEIVING SIGNALS OR DATA COMPRISING FIRST AND SECOND PARTS IN TIME
US4291339A (en) * 1977-05-16 1981-09-22 Ricoh Company, Ltd. Facsimile transceiver
FR2482400A1 (en) * 1980-05-10 1981-11-13 Deutsche Forsch Luft Raumfahrt METHOD FOR TRANSMITTING AND REPRODUCING VIDEO SCENES, ESPECIALLY AIR VIEW SCENES, WITH REDUCED FREQUENCY OF IMAGE RECURRENCE
FR2489061A1 (en) * 1980-08-20 1982-02-26 France Etat Image digital transmission circuit - samples image and transmits selected samples with restoration of omitted samples in receiver
FR2489640A1 (en) * 1980-08-26 1982-03-05 Rca Corp REDUCTION OF INFORMATION PROCESSING EQUIPMENT FOR A DIGITAL VIDEO SYSTEM INVOLVING UNDER SAMPLING AND ADOPTIVE RECONSTITUTION
EP0048569A2 (en) * 1980-09-18 1982-03-31 Sony Corporation Error concealment in digital television signals
FR2492204A1 (en) * 1980-10-15 1982-04-16 Rca Corp METHOD AND DEVICE FOR TRANSMITTING AND RECORDING DATA WITH REDUCED DATA RATE
EP0056402A1 (en) * 1980-07-23 1982-07-28 Rca Corp Adaptive reconstruction of information signals in a plural channel system.
EP0090236A2 (en) * 1982-03-27 1983-10-05 Alcatel N.V. System for the digital transmission of television picture signals with reduced redundancy
FR2555842A1 (en) * 1983-08-15 1985-05-31 Rca Corp METHOD AND SYSTEM FOR TRANSMITTING DIVIDED DATA IN FIRST AND SECOND PARTS
EP0305127A2 (en) * 1987-08-22 1989-03-01 Sony Corporation Video signal compressive encoding/decoding
WO2001065858A1 (en) * 2000-02-29 2001-09-07 Blip-X Limited Video compression using sub-sampling

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291339A (en) * 1977-05-16 1981-09-22 Ricoh Company, Ltd. Facsimile transceiver
EP0020466A1 (en) * 1978-09-18 1981-01-07 Massachusetts Institute Of Technology Image coding by selective addition of pseudo-random noise to portions of video signal
EP0020466A4 (en) * 1978-09-18 1981-01-28 Massachusetts Inst Technology Image coding by selective addition of pseudo-random noise to portions of video signal.
EP0022405A1 (en) * 1979-07-04 1981-01-14 Thomson-Csf Device for coding video frequency television signals and transmission equipment comprising such a device
FR2460581A1 (en) * 1979-07-04 1981-01-23 Thomson Csf DEVICE FOR SCANNING VIDEOFREQUENCY SIGNALS AND TRANSMITTER EQUIPMENT COMPRISING SUCH A DEVICE
FR2475833A1 (en) * 1980-02-07 1981-08-14 Rca Corp METHODS AND DEVICES FOR TRANSMITTING AND RECEIVING SIGNALS OR DATA COMPRISING FIRST AND SECOND PARTS IN TIME
DE3104439A1 (en) * 1980-02-07 1982-01-07 RCA Corp., 10020 New York, N.Y. Method and device for signal transmission
FR2482400A1 (en) * 1980-05-10 1981-11-13 Deutsche Forsch Luft Raumfahrt METHOD FOR TRANSMITTING AND REPRODUCING VIDEO SCENES, ESPECIALLY AIR VIEW SCENES, WITH REDUCED FREQUENCY OF IMAGE RECURRENCE
EP0056402A1 (en) * 1980-07-23 1982-07-28 Rca Corp Adaptive reconstruction of information signals in a plural channel system.
EP0056402A4 (en) * 1980-07-23 1985-10-14 Rca Corp Adaptive reconstruction of information signals in a plural channel system.
FR2489061A1 (en) * 1980-08-20 1982-02-26 France Etat Image digital transmission circuit - samples image and transmits selected samples with restoration of omitted samples in receiver
FR2489640A1 (en) * 1980-08-26 1982-03-05 Rca Corp REDUCTION OF INFORMATION PROCESSING EQUIPMENT FOR A DIGITAL VIDEO SYSTEM INVOLVING UNDER SAMPLING AND ADOPTIVE RECONSTITUTION
EP0048569A2 (en) * 1980-09-18 1982-03-31 Sony Corporation Error concealment in digital television signals
EP0048569A3 (en) * 1980-09-18 1982-08-11 Sony Corporation Error concealment in digital television signals
FR2492204A1 (en) * 1980-10-15 1982-04-16 Rca Corp METHOD AND DEVICE FOR TRANSMITTING AND RECORDING DATA WITH REDUCED DATA RATE
EP0090236A3 (en) * 1982-03-27 1985-10-30 International Standard Electric Corporation System for the digital transmission of television picture signals with reduced redundancy
EP0090236A2 (en) * 1982-03-27 1983-10-05 Alcatel N.V. System for the digital transmission of television picture signals with reduced redundancy
FR2555842A1 (en) * 1983-08-15 1985-05-31 Rca Corp METHOD AND SYSTEM FOR TRANSMITTING DIVIDED DATA IN FIRST AND SECOND PARTS
EP0305127A2 (en) * 1987-08-22 1989-03-01 Sony Corporation Video signal compressive encoding/decoding
EP0305127A3 (en) * 1987-08-22 1989-08-23 Sony Corporation Video signal compressive encoding/decoding
US4910594A (en) * 1987-08-22 1990-03-20 Sony Corporation Method and apparatus for adaptively compressing a video signal in accordance with the valves of individual pixels
WO2001065858A1 (en) * 2000-02-29 2001-09-07 Blip-X Limited Video compression using sub-sampling
GB2375452A (en) * 2000-02-29 2002-11-13 Blip X Ltd Video compression using sub-sampling
GB2375452B (en) * 2000-02-29 2004-07-07 Blip X Ltd Video compression

Also Published As

Publication number Publication date
FR2320017B1 (en) 1981-12-31

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