FI885725A0 - Foerfarande att aendra en visfrekvens av en videosignal. - Google Patents

Foerfarande att aendra en visfrekvens av en videosignal.

Info

Publication number
FI885725A0
FI885725A0 FI885725A FI885725A FI885725A0 FI 885725 A0 FI885725 A0 FI 885725A0 FI 885725 A FI885725 A FI 885725A FI 885725 A FI885725 A FI 885725A FI 885725 A0 FI885725 A0 FI 885725A0
Authority
FI
Finland
Prior art keywords
interlaced
filter
picture
signal
receiver
Prior art date
Application number
FI885725A
Other languages
English (en)
Other versions
FI81232B (fi
FI81232C (fi
Inventor
Janne Juhola
Ari Nieminen
Juha Salo
Yrjoe Neuvo
Original Assignee
Salora Oy
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 Salora Oy filed Critical Salora Oy
Priority to FI885725A priority Critical patent/FI81232C/fi
Publication of FI885725A0 publication Critical patent/FI885725A0/fi
Priority to DE68926608T priority patent/DE68926608T2/de
Priority to AT89312265T priority patent/ATE139073T1/de
Priority to EP89312265A priority patent/EP0372774B1/en
Publication of FI81232B publication Critical patent/FI81232B/fi
Application granted granted Critical
Publication of FI81232C publication Critical patent/FI81232C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
    • H04N7/0132—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter the field or frame frequency of the incoming video signal being multiplied by a positive integer, e.g. for flicker reduction
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Nonwoven Fabrics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
FI885725A 1988-12-09 1988-12-09 Foerfarande att aendra en visfrekvens av en videosignal. FI81232C (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI885725A FI81232C (fi) 1988-12-09 1988-12-09 Foerfarande att aendra en visfrekvens av en videosignal.
DE68926608T DE68926608T2 (de) 1988-12-09 1989-11-27 Verfahren zur Umwandlung einer Videosignalwiedergabefrequenz
AT89312265T ATE139073T1 (de) 1988-12-09 1989-11-27 Verfahren zur umwandlung einer videosignalwiedergabefrequenz
EP89312265A EP0372774B1 (en) 1988-12-09 1989-11-27 Method for the conversion of a video signal display frequency

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI885725A FI81232C (fi) 1988-12-09 1988-12-09 Foerfarande att aendra en visfrekvens av en videosignal.
FI885725 1988-12-09

Publications (3)

Publication Number Publication Date
FI885725A0 true FI885725A0 (fi) 1988-12-09
FI81232B FI81232B (fi) 1990-05-31
FI81232C FI81232C (fi) 1990-09-10

Family

ID=8527545

Family Applications (1)

Application Number Title Priority Date Filing Date
FI885725A FI81232C (fi) 1988-12-09 1988-12-09 Foerfarande att aendra en visfrekvens av en videosignal.

Country Status (4)

Country Link
EP (1) EP0372774B1 (fi)
AT (1) ATE139073T1 (fi)
DE (1) DE68926608T2 (fi)
FI (1) FI81232C (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88663C (fi) * 1991-06-05 1993-06-10 Salora Oy Foerfarande foer att dubblera linjetalet av en i samplingsradform inkommande videosignal
US5151783A (en) * 1991-06-05 1992-09-29 Faroudja Y C Digital television with enhancement
US5355178A (en) * 1991-10-24 1994-10-11 Eastman Kodak Company Mechanism for improving television display of still images using image motion-dependent filter
IT1257068B (it) * 1992-07-22 1996-01-05 Seleco Spa Filtro non lineare pesato per segnale video con compensazione delle correlazioni spaziali.
EP0598333B1 (en) * 1992-11-19 1998-05-06 THOMSON multimedia Method and apparatus for field rate upconversion
DE69318377T2 (de) * 1992-11-19 1998-09-03 Thomson Multimedia Sa Methode und Vorrichtung zur Erhöhung der Bildfrequenz
US6061094A (en) * 1997-11-12 2000-05-09 U.S. Philips Corporation Method and apparatus for scaling and reducing flicker with dynamic coefficient weighting
DE19928740C2 (de) * 1999-06-23 2002-06-27 Micronas Gmbh Verfahren zum Verdoppeln der Bildwiederholfrequenz einer im Zeilensprungverfahren erzeugten Bildsequenz
EP1191786A1 (en) * 2000-09-21 2002-03-27 Sony International (Europe) GmbH Interlace to progressive conversion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501582A (nl) * 1985-02-12 1986-09-01 Philips Nv Videosignaalverwerkingsschakeling voor de verwerking van een geinterlinieerd videosignaal.
DE3610715A1 (de) * 1986-03-29 1987-10-01 Bosch Gmbh Robert Verfahren und schaltungsanordnung zur flimmerfreien wiedergabe eins videosignals

Also Published As

Publication number Publication date
EP0372774A2 (en) 1990-06-13
EP0372774A3 (en) 1992-03-04
DE68926608D1 (de) 1996-07-11
FI81232B (fi) 1990-05-31
DE68926608T2 (de) 1996-10-24
ATE139073T1 (de) 1996-06-15
FI81232C (fi) 1990-09-10
EP0372774B1 (en) 1996-06-05

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: SALORA OY