DE3785634T2 - Verbesserung eines videosignals durch adaptive digitale signalverarbeitung. - Google Patents

Verbesserung eines videosignals durch adaptive digitale signalverarbeitung.

Info

Publication number
DE3785634T2
DE3785634T2 DE8787308413T DE3785634T DE3785634T2 DE 3785634 T2 DE3785634 T2 DE 3785634T2 DE 8787308413 T DE8787308413 T DE 8787308413T DE 3785634 T DE3785634 T DE 3785634T DE 3785634 T2 DE3785634 T2 DE 3785634T2
Authority
DE
Germany
Prior art keywords
digital
samples
digital samples
slope
improving
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.)
Expired - Fee Related
Application number
DE8787308413T
Other languages
English (en)
Other versions
DE3785634D1 (de
Inventor
Theodore Stanley Rzeszewski
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Application granted granted Critical
Publication of DE3785634D1 publication Critical patent/DE3785634D1/de
Publication of DE3785634T2 publication Critical patent/DE3785634T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Picture Signal Circuits (AREA)
  • Television Systems (AREA)
  • Image Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE8787308413T 1986-09-30 1987-09-23 Verbesserung eines videosignals durch adaptive digitale signalverarbeitung. Expired - Fee Related DE3785634T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91370186A 1986-09-30 1986-09-30

Publications (2)

Publication Number Publication Date
DE3785634D1 DE3785634D1 (de) 1993-06-03
DE3785634T2 true DE3785634T2 (de) 1993-08-05

Family

ID=25433502

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787308413T Expired - Fee Related DE3785634T2 (de) 1986-09-30 1987-09-23 Verbesserung eines videosignals durch adaptive digitale signalverarbeitung.

Country Status (7)

Country Link
EP (1) EP0263617B1 (de)
JP (1) JP2643954B2 (de)
KR (1) KR950005617B1 (de)
AT (1) ATE88847T1 (de)
AU (1) AU584820B2 (de)
CA (1) CA1311297C (de)
DE (1) DE3785634T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63292777A (ja) * 1987-05-25 1988-11-30 Mitsubishi Electric Corp 輪郭補正装置
KR920009609B1 (ko) * 1989-09-07 1992-10-21 삼성전자 주식회사 인터폴레이션을 이용한 영상신호의 화질개선 회로
JPH0410773A (ja) * 1990-04-27 1992-01-14 Hitachi Ltd 輪郭強調回路
JPH04306976A (ja) * 1991-04-04 1992-10-29 Matsushita Electric Ind Co Ltd 色信号輪郭補正装置
EP0514196B1 (de) * 1991-05-16 1997-12-29 Victor Company Of Japan, Ltd. Bildqualitätsverbesserungsschaltung zur Bildkontourkompensation
DE4214949A1 (de) * 1992-05-06 1993-11-11 Nokia Deutschland Gmbh Anordnung zur zeitlichen Detektion einer Signalflanke eines auf einer Übertragungsleitung übertragenen elektrischen Signals
DE4309351A1 (de) * 1993-03-23 1994-09-29 Nokia Deutschland Gmbh Eine Übertragungsanordnung einer bestimmten Übertragungsbandbreite mit einer nachgeschalteten Entzerreranordnung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110222C2 (de) * 1981-03-17 1985-06-20 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur partielle glättenden Retusche bei der elektronischen Farbbildreproduktion
US4532548A (en) * 1983-01-27 1985-07-30 Hughes Aircraft Company Resolution enhancement and zoom
US4517599A (en) * 1983-01-27 1985-05-14 Hughes Aircraft Company Resolution enhancement and zoom by degradation estimates

Also Published As

Publication number Publication date
AU584820B2 (en) 1989-06-01
EP0263617A2 (de) 1988-04-13
EP0263617B1 (de) 1993-04-28
JPS6393274A (ja) 1988-04-23
CA1311297C (en) 1992-12-08
KR880004705A (ko) 1988-06-07
EP0263617A3 (en) 1989-09-27
KR950005617B1 (ko) 1995-05-27
ATE88847T1 (de) 1993-05-15
DE3785634D1 (de) 1993-06-03
JP2643954B2 (ja) 1997-08-25
AU7905687A (en) 1988-04-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: BLUMBACH, KRAMER & PARTNER, 65193 WIESBADEN

8339 Ceased/non-payment of the annual fee