DE69223679T2 - Bildqualitätsverbesserungsschaltung zur Bildkontourkompensation - Google Patents

Bildqualitätsverbesserungsschaltung zur Bildkontourkompensation

Info

Publication number
DE69223679T2
DE69223679T2 DE69223679T DE69223679T DE69223679T2 DE 69223679 T2 DE69223679 T2 DE 69223679T2 DE 69223679 T DE69223679 T DE 69223679T DE 69223679 T DE69223679 T DE 69223679T DE 69223679 T2 DE69223679 T2 DE 69223679T2
Authority
DE
Germany
Prior art keywords
image
quality improvement
improvement circuit
contour compensation
image quality
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
DE69223679T
Other languages
English (en)
Other versions
DE69223679D1 (de
Inventor
Shigehiro Ito
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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
Priority claimed from JP3141116A external-priority patent/JP2570001B2/ja
Priority claimed from JP3145514A external-priority patent/JP2555799B2/ja
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of DE69223679D1 publication Critical patent/DE69223679D1/de
Application granted granted Critical
Publication of DE69223679T2 publication Critical patent/DE69223679T2/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
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
DE69223679T 1991-05-16 1992-05-15 Bildqualitätsverbesserungsschaltung zur Bildkontourkompensation Expired - Fee Related DE69223679T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3141116A JP2570001B2 (ja) 1991-05-16 1991-05-16 画質改善装置
JP3145514A JP2555799B2 (ja) 1991-05-21 1991-05-21 画質改善装置

Publications (2)

Publication Number Publication Date
DE69223679D1 DE69223679D1 (de) 1998-02-05
DE69223679T2 true DE69223679T2 (de) 1998-04-30

Family

ID=26473430

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69223679T Expired - Fee Related DE69223679T2 (de) 1991-05-16 1992-05-15 Bildqualitätsverbesserungsschaltung zur Bildkontourkompensation

Country Status (3)

Country Link
US (1) US5293541A (de)
EP (1) EP0514196B1 (de)
DE (1) DE69223679T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309351A1 (de) * 1993-03-23 1994-09-29 Nokia Deutschland Gmbh Eine Übertragungsanordnung einer bestimmten Übertragungsbandbreite mit einer nachgeschalteten Entzerreranordnung
US5491520A (en) * 1993-06-24 1996-02-13 Victor Company Of Japan, Ltd. Contour correcting circuit for sharpening rising and falling edges of video signals
KR0146105B1 (ko) * 1995-04-25 1998-09-15 구자홍 패턴인식형 윤곽보정장치
EP0818932B1 (de) * 1996-07-09 1999-11-10 STMicroelectronics S.r.l. Schaltung zur Chrominanzübergangsverbesserung in Echtzeitvideoempfang
JPH10116050A (ja) * 1996-10-14 1998-05-06 Sony Corp 輪郭補正回路およびｒｇｂモニタ
GB2320834B (en) * 1996-12-28 2001-01-31 Daewoo Electronics Co Ltd Image outline enhancing circuit
US5959693A (en) * 1997-05-07 1999-09-28 General Instrument Corporation Pixel adaptive noise reduction filter for digital video
US6088065A (en) * 1997-09-03 2000-07-11 Victor Company Of Japan, Ltd. Contour correction apparatus and method
US8320729B2 (en) * 2007-11-21 2012-11-27 Sri International Camcorder jamming techniques using high frame rate displays

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030121A (en) * 1975-12-02 1977-06-14 Faroudja Y C Video crispener
CH642211A5 (de) * 1979-03-08 1984-03-30 Siemens Ag Albis Korrekturschaltung zur verbesserung der konturenschaerfe von fernsehbildern.
CA1219338A (en) * 1983-07-27 1987-03-17 Rca Corporation Signal processing circuit
CA1311297C (en) * 1986-09-30 1992-12-08 Theodore Stanley Rzeszewski Video signal enhancement by adaptive digital signal processing
JPS63292777A (ja) * 1987-05-25 1988-11-30 Mitsubishi Electric Corp 輪郭補正装置
JPH03121693A (ja) * 1989-10-04 1991-05-23 Sony Corp 色信号エンハンサ
KR930002906B1 (ko) * 1989-12-23 1993-04-15 삼성전자 주식회사 윤곽 보정회로
JPH04124977A (ja) * 1990-09-17 1992-04-24 Victor Co Of Japan Ltd 画質改善装置

Also Published As

Publication number Publication date
US5293541A (en) 1994-03-08
EP0514196A2 (de) 1992-11-19
EP0514196A3 (de) 1994-01-05
DE69223679D1 (de) 1998-02-05
EP0514196B1 (de) 1997-12-29

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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: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8339 Ceased/non-payment of the annual fee