FR2859344B1 - Dispositif de generation d'un signal d'amelioration de la nettete d'une image video - Google Patents

Dispositif de generation d'un signal d'amelioration de la nettete d'une image video

Info

Publication number
FR2859344B1
FR2859344B1 FR0310326A FR0310326A FR2859344B1 FR 2859344 B1 FR2859344 B1 FR 2859344B1 FR 0310326 A FR0310326 A FR 0310326A FR 0310326 A FR0310326 A FR 0310326A FR 2859344 B1 FR2859344 B1 FR 2859344B1
Authority
FR
France
Prior art keywords
sharpness
improving
generating
signal
video image
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
FR0310326A
Other languages
English (en)
Other versions
FR2859344A1 (fr
Inventor
Eric Cirot
Michel Barou
Danika Chaussy
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.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
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 STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR0310326A priority Critical patent/FR2859344B1/fr
Priority to US10/926,786 priority patent/US7286183B2/en
Publication of FR2859344A1 publication Critical patent/FR2859344A1/fr
Application granted granted Critical
Publication of FR2859344B1 publication Critical patent/FR2859344B1/fr
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
    • H04N5/142—Edging; Contouring

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
FR0310326A 2003-08-29 2003-08-29 Dispositif de generation d'un signal d'amelioration de la nettete d'une image video Expired - Fee Related FR2859344B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0310326A FR2859344B1 (fr) 2003-08-29 2003-08-29 Dispositif de generation d'un signal d'amelioration de la nettete d'une image video
US10/926,786 US7286183B2 (en) 2003-08-29 2004-08-26 Device for generating a video image sharpness improvement signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0310326A FR2859344B1 (fr) 2003-08-29 2003-08-29 Dispositif de generation d'un signal d'amelioration de la nettete d'une image video

Publications (2)

Publication Number Publication Date
FR2859344A1 FR2859344A1 (fr) 2005-03-04
FR2859344B1 true FR2859344B1 (fr) 2006-01-27

Family

ID=34130675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0310326A Expired - Fee Related FR2859344B1 (fr) 2003-08-29 2003-08-29 Dispositif de generation d'un signal d'amelioration de la nettete d'une image video

Country Status (2)

Country Link
US (1) US7286183B2 (fr)
FR (1) FR2859344B1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109077A (en) * 1979-02-15 1980-08-21 Sony Corp Producing circuit of aperture correction signal
JPS63146666A (ja) * 1986-12-10 1988-06-18 Matsushita Electric Ind Co Ltd クリツプ回路
FR2729524B1 (fr) * 1995-01-13 1997-06-06 Sgs Thomson Microelectronics Circuit de suppression et circuit d'accentuation
JPH10145807A (ja) * 1996-11-12 1998-05-29 Matsushita Electric Ind Co Ltd オートカットオフ回路
JP4063889B2 (ja) * 1997-03-03 2008-03-19 松下電器産業株式会社 映像信号の黒レベル検出回路
US6404460B1 (en) * 1999-02-19 2002-06-11 Omnivision Technologies, Inc. Edge enhancement with background noise reduction in video image processing
JP3844430B2 (ja) * 2001-06-26 2006-11-15 三菱電機株式会社 映像信号処理装置および映像信号処理方法
JP3729157B2 (ja) * 2002-06-25 2005-12-21 ソニー株式会社 映像信号処理装置及び方法

Also Published As

Publication number Publication date
US7286183B2 (en) 2007-10-23
FR2859344A1 (fr) 2005-03-04
US20050078054A1 (en) 2005-04-14

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090430