IT1258122B - Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine. - Google Patents

Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine.

Info

Publication number
IT1258122B
IT1258122B ITTO920952A ITTO920952A IT1258122B IT 1258122 B IT1258122 B IT 1258122B IT TO920952 A ITTO920952 A IT TO920952A IT TO920952 A ITTO920952 A IT TO920952A IT 1258122 B IT1258122 B IT 1258122B
Authority
IT
Italy
Prior art keywords
improvement system
video image
image contrast
volterra filter
order volterra
Prior art date
Application number
ITTO920952A
Other languages
English (en)
Original Assignee
Seleco 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 Seleco Spa filed Critical Seleco Spa
Priority to ITTO920952A priority Critical patent/IT1258122B/it
Publication of ITTO920952A0 publication Critical patent/ITTO920952A0/it
Priority to EP93118779A priority patent/EP0599252A1/en
Publication of ITTO920952A1 publication Critical patent/ITTO920952A1/it
Application granted granted Critical
Publication of IT1258122B publication Critical patent/IT1258122B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/142—Edging; Contouring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La presente invenzione si riferisce ad un sistema migliorativo del contrasto di immagini video, utilizzante un filtro non lineare; la caratteristica principale dell'invenzione consiste nel fatto che detto filtro di Volterra modificato, che opera su un dominio spaziale a finestra quadrata 3x3 ed è ottenuto troncando lo sviluppo al 2° ordine (k=2).
ITTO920952A 1992-11-25 1992-11-25 Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine. IT1258122B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTO920952A IT1258122B (it) 1992-11-25 1992-11-25 Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine.
EP93118779A EP0599252A1 (en) 1992-11-25 1993-11-22 Circuit for improving the contrast of a video image utilising a second order volterra filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920952A IT1258122B (it) 1992-11-25 1992-11-25 Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine.

Publications (3)

Publication Number Publication Date
ITTO920952A0 ITTO920952A0 (it) 1992-11-25
ITTO920952A1 ITTO920952A1 (it) 1994-05-25
IT1258122B true IT1258122B (it) 1996-02-20

Family

ID=11410877

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920952A IT1258122B (it) 1992-11-25 1992-11-25 Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine.

Country Status (2)

Country Link
EP (1) EP0599252A1 (it)
IT (1) IT1258122B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4561151B2 (ja) * 2004-04-06 2010-10-13 ソニー株式会社 信号処理装置及び方法、並びに信号復号装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386434A (en) * 1981-06-08 1983-05-31 Rca Corporation Vertical and horizontal detail signal processor
US4573075A (en) * 1983-06-24 1986-02-25 Rca Corporation Digital signal coring apparatus with controllable coring threshold level
JP2594627B2 (ja) * 1988-02-26 1997-03-26 オリンパス光学工業株式会社 電子内視鏡装置
JPH01220975A (ja) * 1988-02-29 1989-09-04 Toshiba Corp 画質調整回路
US4991021A (en) * 1988-06-22 1991-02-05 Nec Corporation Digital video signal compensation circuit
US4941190A (en) * 1988-07-15 1990-07-10 Minnesota Mining And Manufacturing Company Method and system for enhancement of a digitized image

Also Published As

Publication number Publication date
ITTO920952A1 (it) 1994-05-25
EP0599252A1 (en) 1994-06-01
ITTO920952A0 (it) 1992-11-25

Similar Documents

Publication Publication Date Title
CA2093449A1 (en) Electronic Film Development
CA2376411A1 (en) Digital projection equipment and techniques
DE69228139D1 (de) System zur Abbildung von Videobildern
MY123225A (en) Infrared correction system
EP0264965A3 (en) Video difference key generator
WO2004059574A3 (en) Reduction of differential resolution of separations
KR840002786A (ko) 텔레비전 수상기
DE60239061D1 (de) Verfahren und system zur qualitätsverbesserung von bildern
DE69226749D1 (de) System zur Kompression von sich bewegenden Videobildern mit mehrfachen Auflösungsmerkmalen
CA2073086A1 (en) Video insertion processing system
DE69410117D1 (de) Gerät zur abbildung eines bildes
EP0595599A3 (en) Compression / decompression system for image data.
DE3854753D1 (de) Einrichtung und Verfahren zur Farbbildverbesserung.
GB2422743A (en) Reducing artifacts in compressed images
TW284855B (it)
WO2000051345A8 (en) Method and apparatus for dual resolution foveating display output
BR0208591A (pt) Método para avivamento de uma imagem, sistema para executar o mesmo, e, meio legìvel por computador
GB2330976A (en) Optical detection system
GB9206396D0 (en) Video image motion measurement
DK0628233T3 (da) Videobilledbehandling
IT1258122B (it) Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine.
EP0624041A3 (en) Color video camera.
EP0862334A3 (en) A signal processing system
EP0644545A3 (en) Image display device.
FR2711877B1 (fr) Système de traitement d'images haute définition.

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961129