KR101235605B1 - 화질 개선 장치 및 방법 - Google Patents

화질 개선 장치 및 방법 Download PDF

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KR101235605B1
KR101235605B1 KR1020117001587A KR20117001587A KR101235605B1 KR 101235605 B1 KR101235605 B1 KR 101235605B1 KR 1020117001587 A KR1020117001587 A KR 1020117001587A KR 20117001587 A KR20117001587 A KR 20117001587A KR 101235605 B1 KR101235605 B1 KR 101235605B1
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South Korea
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signal
component signal
frequency component
high frequency
low
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Korean (ko)
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KR20110022689A (ko
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사치코 나카츠카
켄지 구보타
히데키 아이바
준이치 하세가와
사토시 도요시마
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닛뽕빅터 가부시키가이샤
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • 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 OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening
    • G06T5/75—Unsharp masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
KR1020117001587A 2008-07-15 2009-07-15 화질 개선 장치 및 방법 Active KR101235605B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2008-183520 2008-07-15
JP2008183520A JP4453777B2 (ja) 2008-07-15 2008-07-15 画質改善装置及び方法
PCT/JP2009/062787 WO2010008011A1 (ja) 2008-07-15 2009-07-15 画質改善装置及び方法

Publications (2)

Publication Number Publication Date
KR20110022689A KR20110022689A (ko) 2011-03-07
KR101235605B1 true KR101235605B1 (ko) 2013-02-21

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KR1020117001587A Active KR101235605B1 (ko) 2008-07-15 2009-07-15 화질 개선 장치 및 방법

Country Status (6)

Country Link
US (1) US8363166B2 (https=)
EP (1) EP2320638B1 (https=)
JP (1) JP4453777B2 (https=)
KR (1) KR101235605B1 (https=)
CN (1) CN102100061B (https=)
WO (1) WO2010008011A1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140086632A (ko) 2012-12-28 2014-07-08 삼성디스플레이 주식회사 영상 처리 장치 및 그것을 포함하는 표시 장치
CN104809694B (zh) * 2014-01-23 2020-04-03 腾讯科技（深圳）有限公司 一种数字图像处理方法和装置
US10057566B2 (en) * 2014-04-04 2018-08-21 Tektronix, Inc. Depth of field indication using focus-peaking picture markers
JP6551048B2 (ja) 2015-08-24 2019-07-31 株式会社Ｊｖｃケンウッド 水中撮影装置、水中撮影装置の制御方法、水中撮影装置の制御プログラム
CN105447830B (zh) * 2015-11-27 2018-05-25 合一网络技术(北京)有限公司 动态视频图像清晰度强化方法及装置
JP7101539B2 (ja) * 2018-05-22 2022-07-15 キヤノン株式会社 画像処理装置、画像処理方法、及びプログラム
CN110518455B (zh) * 2019-08-06 2021-01-19 西安交通大学 一种消除外腔可调谐半导体激光器内腔非线性的硬件电路
CN117121468A (zh) * 2021-04-13 2023-11-24 三星电子株式会社 电子装置及其控制方法

Citations (3)

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JP2574515B2 (ja) 1990-05-16 1997-01-22 松下電器産業株式会社 Ｙｃ分離回路
KR100343744B1 (ko) 2000-09-30 2002-07-20 엘지전자주식회사 영상신호의 콘트라스트 향상 장치
KR20060091637A (ko) * 2005-02-16 2006-08-21 삼성전자주식회사 고주파 성분을 조절하여 영상의 선명도를 조절할 수 있는영상 보정 회로

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JPH0744135Y2 (ja) 1988-06-20 1995-10-09 ソニー株式会社 輪郭強調回路
JPH03285472A (ja) 1990-03-31 1991-12-16 Toshiba Corp 水平輪郭強調回路
JPH04973A (ja) 1990-04-18 1992-01-06 Mitsubishi Electric Corp 映像信号処理装置
JP3145168B2 (ja) 1991-04-25 2001-03-12 オリンパス光学工業株式会社 画像信号処理装置
JPH05344385A (ja) 1992-06-09 1993-12-24 Matsushita Electric Ind Co Ltd 画像輪郭強調回路
JPH05344386A (ja) 1992-06-09 1993-12-24 Matsushita Electric Ind Co Ltd 画像輪郭強調器
KR950012192B1 (ko) * 1993-06-29 1995-10-14 엘지전자 주식회사 콤브 필터와 회전제어장치
JPH07177386A (ja) * 1993-12-21 1995-07-14 Matsushita Electric Ind Co Ltd 画像輪郭強調装置
JPH08111792A (ja) 1994-10-13 1996-04-30 Matsushita Electric Ind Co Ltd 画像輪郭強調器
KR100206319B1 (ko) * 1995-12-13 1999-07-01 윤종용 비디오 신호의 로컬 콘트라스트 개선을 위한 방법및장치
US7177481B2 (en) 2000-12-19 2007-02-13 Konica Corporation Multiresolution unsharp image processing apparatus
JP4470320B2 (ja) 2000-12-22 2010-06-02 パナソニック株式会社 垂直輪郭補正装置
US7228004B2 (en) 2002-09-05 2007-06-05 Eastman Kodak Company Method for sharpening a digital image
US7274828B2 (en) * 2003-09-11 2007-09-25 Samsung Electronics Co., Ltd. Method and apparatus for detecting and processing noisy edges in image detail enhancement
JP2008500757A (ja) 2004-05-25 2008-01-10 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 映像信号の鮮鋭度を強調するための方法およびシステム
JP4555207B2 (ja) 2005-10-18 2010-09-29 Ｎｅｃディスプレイソリューションズ株式会社 画質改善装置および画質改善方法
WO2009083926A2 (en) * 2007-12-28 2009-07-09 Nxp B.V. Arrangement and approach for image data processing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2574515B2 (ja) 1990-05-16 1997-01-22 松下電器産業株式会社 Ｙｃ分離回路
KR100343744B1 (ko) 2000-09-30 2002-07-20 엘지전자주식회사 영상신호의 콘트라스트 향상 장치
KR20060091637A (ko) * 2005-02-16 2006-08-21 삼성전자주식회사 고주파 성분을 조절하여 영상의 선명도를 조절할 수 있는영상 보정 회로

Also Published As

Publication number Publication date
CN102100061A (zh) 2011-06-15
JP4453777B2 (ja) 2010-04-21
EP2320638A4 (en) 2011-08-03
JP2010028178A (ja) 2010-02-04
WO2010008011A1 (ja) 2010-01-21
EP2320638B1 (en) 2015-03-04
CN102100061B (zh) 2013-11-13
US8363166B2 (en) 2013-01-29
KR20110022689A (ko) 2011-03-07
US20110267540A1 (en) 2011-11-03
EP2320638A1 (en) 2011-05-11

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