SE7804769L - Forfarande for forbettring av bildkvaliteten vid faksimiloverforing - Google Patents

Forfarande for forbettring av bildkvaliteten vid faksimiloverforing

Info

Publication number
SE7804769L
SE7804769L SE7804769A SE7804769A SE7804769L SE 7804769 L SE7804769 L SE 7804769L SE 7804769 A SE7804769 A SE 7804769A SE 7804769 A SE7804769 A SE 7804769A SE 7804769 L SE7804769 L SE 7804769L
Authority
SE
Sweden
Prior art keywords
faximi
procedure
transfer
image quality
improving image
Prior art date
Application number
SE7804769A
Other languages
English (en)
Swedish (sv)
Inventor
J Munchow
R Sommer
Original Assignee
Hell Rudolf Dr Ing Gmbh
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 Hell Rudolf Dr Ing Gmbh filed Critical Hell Rudolf Dr Ing Gmbh
Publication of SE7804769L publication Critical patent/SE7804769L/xx

Links

Classifications

    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Solid State Image Pick-Up Elements (AREA)
SE7804769A 1977-05-05 1978-04-26 Forfarande for forbettring av bildkvaliteten vid faksimiloverforing SE7804769L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2720079A DE2720079C3 (de) 1977-05-05 1977-05-05 Verfahren zur Verbesserung der Bildqualität bei der Faksimile-Übertragung

Publications (1)

Publication Number Publication Date
SE7804769L true SE7804769L (sv) 1978-11-06

Family

ID=6008068

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7804769A SE7804769L (sv) 1977-05-05 1978-04-26 Forfarande for forbettring av bildkvaliteten vid faksimiloverforing

Country Status (14)

Country Link
AT (1) AT372561B (xx)
AU (1) AU518941B2 (xx)
BE (1) BE866727A (xx)
CH (1) CH627317A5 (xx)
DE (1) DE2720079C3 (xx)
DK (1) DK191378A (xx)
FI (1) FI781369A (xx)
FR (1) FR2390056A1 (xx)
GB (1) GB1604106A (xx)
IT (1) IT1095722B (xx)
NL (1) NL7804772A (xx)
NO (1) NO781338L (xx)
SE (1) SE7804769L (xx)
YU (1) YU101778A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826755A1 (de) * 1978-06-19 1979-12-20 Hell Rudolf Dr Ing Gmbh Abtasteinrichtung
US4589034A (en) * 1980-12-05 1986-05-13 Canon Kabushiki Kaisha Image processing apparatus
DE3441152A1 (de) * 1984-11-10 1986-05-28 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Verfahren zur magnetischen aufzeichnung und wiedergabe von telekommunikations-signalen, insbesondere von videotext- und/oder kabeltext-signalen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189685A (en) * 1961-04-21 1965-06-15 Philco Corp Two-level quantization system
DE1268657B (de) * 1965-07-14 1968-05-22 Hell Rudolf Dr Ing Fa Verfahren zur Steigerung der Schaerfe bei der Aufzeichnung der Reproduktionen lichtelektrisch abgetasteter Bildvorlagen
US3538246A (en) * 1968-05-22 1970-11-03 Southern Pacific Transport Co Bandwidth reduction technique for analog signals
US3495032A (en) * 1968-10-07 1970-02-10 Graphic Transmission Systems I Bandwidth reduction system
US3761610A (en) * 1971-02-16 1973-09-25 Graphics Sciences Inc High speed fascimile systems
DE2114149C3 (de) * 1971-03-24 1973-09-20 Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt Amphtudendiskriminator fur eine Schaltungsanordnung zur Erzeugung eines Korrektursignals zur Flankenverstelle rung von Impulsen
US3795765A (en) * 1971-12-29 1974-03-05 Xerox Corp Alternate analog encoding method and apparatus

Also Published As

Publication number Publication date
AU518941B2 (en) 1981-10-29
FI781369A (fi) 1978-11-06
YU101778A (en) 1982-08-31
IT7822932A0 (it) 1978-05-03
AT372561B (de) 1983-10-25
NL7804772A (nl) 1978-11-07
DK191378A (da) 1978-11-06
IT1095722B (it) 1985-08-17
BE866727A (fr) 1978-09-01
DE2720079B2 (de) 1981-01-22
ATA303978A (de) 1983-02-15
CH627317A5 (en) 1981-12-31
DE2720079C3 (de) 1981-11-05
FR2390056A1 (xx) 1978-12-01
NO781338L (no) 1978-11-07
DE2720079A1 (de) 1978-11-09
AU3577078A (en) 1979-11-08
GB1604106A (en) 1981-12-02

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