TW376639B - Method and circuit for adaptively enhancing contour components of a luminance signal - Google Patents

Method and circuit for adaptively enhancing contour components of a luminance signal

Info

Publication number
TW376639B
TW376639B TW086110771A TW86110771A TW376639B TW 376639 B TW376639 B TW 376639B TW 086110771 A TW086110771 A TW 086110771A TW 86110771 A TW86110771 A TW 86110771A TW 376639 B TW376639 B TW 376639B
Authority
TW
Taiwan
Prior art keywords
contour component
luminance signal
contour
level
limited
Prior art date
Application number
TW086110771A
Other languages
English (en)
Inventor
Yong-Cheol Park
Si-Young Chin
Original Assignee
Samsung Electronics Co 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
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of TW376639B publication Critical patent/TW376639B/zh

Links

Classifications

    • 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
    • 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
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/12—Edge-based segmentation
    • 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
    • G06T2207/20172—Image enhancement details
    • G06T2207/20192—Edge enhancement; Edge preservation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
TW086110771A 1996-11-29 1997-07-29 Method and circuit for adaptively enhancing contour components of a luminance signal TW376639B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960059842A KR100230391B1 (ko) 1996-11-29 1996-11-29 휘도신호의 윤곽성분을 적응적으로 보정하는방법 및 회로

Publications (1)

Publication Number Publication Date
TW376639B true TW376639B (en) 1999-12-11

Family

ID=19484718

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086110771A TW376639B (en) 1996-11-29 1997-07-29 Method and circuit for adaptively enhancing contour components of a luminance signal

Country Status (4)

Country Link
US (1) US6148116A (zh)
JP (1) JPH10164396A (zh)
KR (1) KR100230391B1 (zh)
TW (1) TW376639B (zh)

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JP2000036967A (ja) * 1998-07-21 2000-02-02 Sony Corp 画像処理システムおよびカメラシステム
US6774943B1 (en) * 1998-09-01 2004-08-10 Ess Technology, Inc. Method and apparatus for edge enhancement in digital images
JP4159062B2 (ja) * 1998-11-10 2008-10-01 キヤノン株式会社 画像処理装置
US6404460B1 (en) * 1999-02-19 2002-06-11 Omnivision Technologies, Inc. Edge enhancement with background noise reduction in video image processing
KR100555469B1 (ko) * 1999-03-23 2006-03-03 삼성전자주식회사 영상의 윤곽 보정 장치 및 방법
EP1185979A1 (en) * 2000-03-27 2002-03-13 Koninklijke Philips Electronics N.V. Optical scanning device
JP4305598B2 (ja) * 2000-06-05 2009-07-29 富士フイルム株式会社 カメラの絞り制御方法及び装置、並びにカメラ
JP3540758B2 (ja) * 2000-09-08 2004-07-07 三洋電機株式会社 単板式カラーカメラにおける水平輪郭信号生成回路
US6600518B1 (en) * 2000-11-06 2003-07-29 Koninklijke Philips Electronics N.V. Adaptive clipping prevention for picture sharpness enhancement
CN1228732C (zh) * 2002-01-23 2005-11-23 佳能株式会社 轮廓校正装置、轮廓校正方法
JP3863808B2 (ja) * 2002-05-27 2006-12-27 三洋電機株式会社 輪郭強調回路
KR100455199B1 (ko) * 2002-08-12 2004-11-06 엘지전자 주식회사 텔레비젼수상기의 피킹회로
EP1574043A2 (en) * 2002-11-04 2005-09-14 Koninklijke Philips Electronics N.V. Generating a scan velocity modulation signal
CN1857008B (zh) * 2004-02-19 2010-05-05 三菱电机株式会社 图像处理方法
JP4155233B2 (ja) 2004-06-24 2008-09-24 株式会社日立製作所 映像表示装置
JP2006179975A (ja) * 2004-12-20 2006-07-06 Toshiba Corp 映像信号処理装置、映像信号処理方法及びテレビ放送受信装置
US7847863B2 (en) * 2005-06-10 2010-12-07 Intel Corporation Enhancing sharpness in video images
US7653257B2 (en) * 2005-07-19 2010-01-26 Intel Corporation Enhancing video sequence sharpness by adaptive peaking
KR101311817B1 (ko) 2005-09-30 2013-09-26 티피 비전 홀딩 비.브이. 이미지 디테일 향상
US7620263B2 (en) * 2005-10-06 2009-11-17 Samsung Electronics Co., Ltd. Anti-clipping method for image sharpness enhancement
US7907215B2 (en) * 2006-06-06 2011-03-15 Sigma Designs, Inc. Video enhancement systems and methods
US8213500B2 (en) * 2006-12-21 2012-07-03 Sharp Laboratories Of America, Inc. Methods and systems for processing film grain noise
US7742652B2 (en) * 2006-12-21 2010-06-22 Sharp Laboratories Of America, Inc. Methods and systems for image noise processing
KR100900694B1 (ko) 2007-06-27 2009-06-04 주식회사 코아로직 비선형 저조도 보정장치, 방법 및 상기 방법을프로그램화하여 수록한 컴퓨터로 읽을 수 있는 기록매체
KR101315413B1 (ko) 2007-08-27 2013-10-07 삼성전자주식회사 신호처리장치 및 그 제어방법
EP2198603A1 (en) * 2007-10-01 2010-06-23 Nxp B.V. Pixel processing
JP5343743B2 (ja) * 2008-08-01 2013-11-13 株式会社ニコン 画像処理方法
JP5359646B2 (ja) * 2008-08-01 2013-12-04 株式会社ニコン 画像処理方法
GB2465158A (en) * 2008-11-05 2010-05-12 Sony Corp Image data filtering
JP5075795B2 (ja) * 2008-11-14 2012-11-21 株式会社東芝 固体撮像装置
JP2010154298A (ja) * 2008-12-25 2010-07-08 Toshiba Corp 映像処理装置、映像処理方法及び映像表示装置
JP2012249079A (ja) * 2011-05-27 2012-12-13 Semiconductor Components Industries Llc 輪郭補正装置
JP6235604B2 (ja) 2013-10-29 2017-11-22 株式会社日立国際電気 映像信号のノイズ除去回路及び映像信号のノイズ除去方法
JP6423594B2 (ja) * 2014-02-18 2018-11-14 株式会社メガチップス 物体検出装置
JP6558935B2 (ja) * 2015-04-24 2019-08-14 キヤノン株式会社 画像処理装置、その制御方法、および制御プログラム、並びに撮像装置

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US3789133A (en) * 1971-10-26 1974-01-29 Commercial Electronics Inc Television camera aperture correction system
US4437124A (en) * 1982-04-30 1984-03-13 Rca Corporation Dynamic coring circuit
US4573075A (en) * 1983-06-24 1986-02-25 Rca Corporation Digital signal coring apparatus with controllable coring threshold level
US4536796A (en) * 1983-08-23 1985-08-20 Rca Corporation Non-linear dynamic coring circuit for video signals
JPH06178156A (ja) * 1992-12-08 1994-06-24 Matsushita Electric Ind Co Ltd 適応型輪郭補正装置

Also Published As

Publication number Publication date
US6148116A (en) 2000-11-14
KR19980040618A (ko) 1998-08-17
KR100230391B1 (ko) 1999-11-15
JPH10164396A (ja) 1998-06-19

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees