TW200608775A - Method and system for enhancing the sharpness of a video signal - Google Patents

Method and system for enhancing the sharpness of a video signal

Info

Publication number
TW200608775A
TW200608775A TW094116510A TW94116510A TW200608775A TW 200608775 A TW200608775 A TW 200608775A TW 094116510 A TW094116510 A TW 094116510A TW 94116510 A TW94116510 A TW 94116510A TW 200608775 A TW200608775 A TW 200608775A
Authority
TW
Taiwan
Prior art keywords
images
sharpness
enhancing
video signal
generating
Prior art date
Application number
TW094116510A
Other languages
English (en)
Inventor
Paul Michiel Hofman
Jeroen Arnoldus Paulus Tegenbosch
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200608775A publication Critical patent/TW200608775A/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20008—Globally adaptive

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Studio Circuits (AREA)
TW094116510A 2004-05-25 2005-05-20 Method and system for enhancing the sharpness of a video signal TW200608775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04300301 2004-05-25

Publications (1)

Publication Number Publication Date
TW200608775A true TW200608775A (en) 2006-03-01

Family

ID=34968342

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094116510A TW200608775A (en) 2004-05-25 2005-05-20 Method and system for enhancing the sharpness of a video signal

Country Status (7)

Country Link
US (1) US20080266307A1 (zh)
EP (1) EP1754369A1 (zh)
JP (1) JP2008500757A (zh)
KR (1) KR20070029176A (zh)
CN (1) CN100473111C (zh)
TW (1) TW200608775A (zh)
WO (1) WO2005117414A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7852412B1 (en) * 2006-02-27 2010-12-14 Nvidia Corporation Video noise level detection
JP2009531933A (ja) * 2006-03-29 2009-09-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 画像信号の表示品位を改善するための方法及びシステム
US7952647B2 (en) * 2006-12-27 2011-05-31 Intel Corporation Method and apparatus of content adaptive detailing filtering for digital pictures
JP5050637B2 (ja) * 2007-05-11 2012-10-17 ソニー株式会社 映像信号処理装置、映像信号処理方法、映像信号処理方法のプログラム及び映像信号処理方法のプログラムを記録した記録媒体
KR101456319B1 (ko) * 2007-07-09 2014-11-03 플리르 시스템스 에이비 적외선 이미지 프로세싱 방법, 적외선 이미지 캡쳐 시스템 및 컴퓨터 판독가능 매체
JP4453777B2 (ja) * 2008-07-15 2010-04-21 日本ビクター株式会社 画質改善装置及び方法
JP5320538B1 (ja) * 2012-08-09 2013-10-23 清一 合志 画像強調装置、画像強調方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629409C2 (de) * 1986-08-29 1994-02-17 Agfa Gevaert Ag Verfahren und Vorrichtung zur Kontrastbewertung bei der elektronischen Bildverarbeitung
US5038388A (en) * 1989-05-15 1991-08-06 Polaroid Corporation Method for adaptively sharpening electronic images
JPH0856316A (ja) * 1994-06-09 1996-02-27 Sony Corp 画像処理装置
KR0176601B1 (ko) * 1996-05-21 1999-05-01 김광호 저역 필터링과 히스토그램 등화를 이용한 화질개선 방법 및 그 회로
US5978518A (en) * 1997-02-25 1999-11-02 Eastman Kodak Company Image enhancement in digital image processing
JPH114363A (ja) * 1997-06-11 1999-01-06 Fujitsu General Ltd 輪郭補正回路
US7161633B2 (en) * 2001-01-10 2007-01-09 Koninklijke Philips Electronics N.V. Apparatus and method for providing a usefulness metric based on coding information for video enhancement
US6950561B2 (en) * 2001-01-10 2005-09-27 Koninklijke Philips Electronics N.V. Method and system for sharpness enhancement for coded video
WO2002084997A1 (fr) * 2001-04-11 2002-10-24 Sony Corporation Circuit d'accentuation de contours

Also Published As

Publication number Publication date
JP2008500757A (ja) 2008-01-10
EP1754369A1 (en) 2007-02-21
WO2005117414A1 (en) 2005-12-08
KR20070029176A (ko) 2007-03-13
CN100473111C (zh) 2009-03-25
CN101019414A (zh) 2007-08-15
US20080266307A1 (en) 2008-10-30

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