PL108988B1 - Image coder-decoder,employing matrix transformation with weighted representation of image points in transform points - Google Patents

Image coder-decoder,employing matrix transformation with weighted representation of image points in transform points Download PDF

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Publication number
PL108988B1
PL108988B1 PL19321676A PL19321676A PL108988B1 PL 108988 B1 PL108988 B1 PL 108988B1 PL 19321676 A PL19321676 A PL 19321676A PL 19321676 A PL19321676 A PL 19321676A PL 108988 B1 PL108988 B1 PL 108988B1
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PL
Poland
Prior art keywords
matrix
samples
coefficients
matrices
difference
Prior art date
Application number
PL19321676A
Other languages
English (en)
Polish (pl)
Other versions
PL193216A1 (pl
Inventor
Jean C Jolivet
Francois X Stouls
Original Assignee
Telecommunications Sa
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 Telecommunications Sa filed Critical Telecommunications Sa
Publication of PL193216A1 publication Critical patent/PL193216A1/xx
Publication of PL108988B1 publication Critical patent/PL108988B1/pl

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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
PL19321676A 1975-10-24 1976-10-23 Image coder-decoder,employing matrix transformation with weighted representation of image points in transform points PL108988B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532628A FR2329124A1 (fr) 1975-10-24 1975-10-24 Codeur-decodeur d'images a transformee matricielle avec ponderation des contributions des points de l'image a la formation de la transformee

Publications (2)

Publication Number Publication Date
PL193216A1 PL193216A1 (pl) 1978-01-30
PL108988B1 true PL108988B1 (en) 1980-05-31

Family

ID=9161629

Family Applications (1)

Application Number Title Priority Date Filing Date
PL19321676A PL108988B1 (en) 1975-10-24 1976-10-23 Image coder-decoder,employing matrix transformation with weighted representation of image points in transform points

Country Status (9)

Country Link
BR (1) BR7607077A (de)
CA (1) CA1089100A (de)
DE (1) DE2647774C3 (de)
FR (1) FR2329124A1 (de)
GB (1) GB1527276A (de)
IT (1) IT1073358B (de)
MX (1) MX144485A (de)
PL (1) PL108988B1 (de)
SU (1) SU784816A3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009568B (en) * 1977-11-28 1982-03-24 Nippon Telegraph & Telephone Picture signal coding apparatus
EP0006748B1 (de) * 1978-06-26 1982-06-23 Environmental Research Institute Of Michigan Vorrichtung und Verfahren zur Erzeugung einer Transformation einer ersten Datenmatrix zur Bildung einer zweiten Datenmatrix
EP0107426B1 (de) * 1982-10-14 1987-01-21 British Telecommunications Bildübertragung
JPS60153264A (ja) * 1984-01-20 1985-08-12 Ricoh Co Ltd 中間調画像伝送方式
DE3577172D1 (de) * 1984-05-21 1990-05-17 Siemens Ag Verfahren zur uebertragung von fernsehbildern.
FR2606187B1 (fr) * 1986-10-31 1988-12-09 Thomson Grand Public Procede et dispositif de reduction du bruit engendre par un codeur-decodeur d'images numeriques operant par blocs

Also Published As

Publication number Publication date
MX144485A (es) 1981-10-20
IT1073358B (it) 1985-04-17
DE2647774B2 (de) 1980-06-26
DE2647774C3 (de) 1981-07-09
BR7607077A (pt) 1977-09-06
FR2329124B1 (de) 1981-01-02
GB1527276A (en) 1978-10-04
DE2647774A1 (de) 1977-04-28
PL193216A1 (pl) 1978-01-30
FR2329124A1 (fr) 1977-05-20
SU784816A3 (ru) 1980-11-30
CA1089100A (en) 1980-11-04

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