KR100276369B1 - 화상성분 분석을 이용한 비선형 영상 신호 프로세서 - Google Patents

화상성분 분석을 이용한 비선형 영상 신호 프로세서 Download PDF

Info

Publication number
KR100276369B1
KR100276369B1 KR1019930008881A KR930008881A KR100276369B1 KR 100276369 B1 KR100276369 B1 KR 100276369B1 KR 1019930008881 A KR1019930008881 A KR 1019930008881A KR 930008881 A KR930008881 A KR 930008881A KR 100276369 B1 KR100276369 B1 KR 100276369B1
Authority
KR
South Korea
Prior art keywords
signal
image
transfer function
control
generator
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
KR1019930008881A
Other languages
English (en)
Korean (ko)
Other versions
KR930024445A (ko
Inventor
아담슨 라고니 윌리암
폴 피카 알버트
러셀 버젠 제임스
Original Assignee
크리트먼 어윈 엠
톰슨 콘슈머 일렉트로닉스, 인코포레이티드
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 크리트먼 어윈 엠, 톰슨 콘슈머 일렉트로닉스, 인코포레이티드 filed Critical 크리트먼 어윈 엠
Publication of KR930024445A publication Critical patent/KR930024445A/ko
Application granted granted Critical
Publication of KR100276369B1 publication Critical patent/KR100276369B1/ko
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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Image Processing (AREA)
KR1019930008881A 1992-05-22 1993-05-22 화상성분 분석을 이용한 비선형 영상 신호 프로세서 Expired - Fee Related KR100276369B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US88745392A 1992-05-22 1992-05-22
US07/887,453 1992-05-22
US7/887,453 1992-05-22

Publications (2)

Publication Number Publication Date
KR930024445A KR930024445A (ko) 1993-12-22
KR100276369B1 true KR100276369B1 (ko) 2000-12-15

Family

ID=25391166

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930008881A Expired - Fee Related KR100276369B1 (ko) 1992-05-22 1993-05-22 화상성분 분석을 이용한 비선형 영상 신호 프로세서

Country Status (9)

Country Link
US (1) US5422680A (enExample)
EP (1) EP0570873B1 (enExample)
JP (1) JP3563087B2 (enExample)
KR (1) KR100276369B1 (enExample)
CN (1) CN1037223C (enExample)
DE (1) DE69319960T2 (enExample)
ES (1) ES2118854T3 (enExample)
MY (1) MY109269A (enExample)
SG (1) SG63564A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100865246B1 (ko) * 2001-03-06 2008-10-27 코닌클리케 필립스 일렉트로닉스 엔.브이. 비디오 신호 강화 방법 및 유닛과 이를 사용하는디스플레이 장치

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6184969B1 (en) * 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
CA2222289A1 (en) * 1995-05-31 1996-12-05 Telefonaktiebolaget Lm Ericsson Local control enhancement in a telecommunications system
US6414664B1 (en) * 1997-11-13 2002-07-02 Honeywell Inc. Method of and apparatus for controlling contrast of liquid crystal displays while receiving large dynamic range video
EP0963111A1 (en) * 1998-06-02 1999-12-08 Deutsche Thomson-Brandt Gmbh Method and apparatus for dynamic contrast improvement in video pictures
EP0963112B1 (en) * 1998-06-02 2004-04-21 Deutsche Thomson-Brandt Gmbh Method and apparatus for dynamic contrast improvement in video pictures
KR100346840B1 (ko) 1999-11-04 2002-08-03 삼성전자 주식회사 화면의 펄럭거림을 최소화하는 흑신장 장치 및 그 방법
JP3685029B2 (ja) * 2000-10-04 2005-08-17 セイコーエプソン株式会社 液晶表示装置、画像信号補正回路、液晶表示装置の駆動方法、および画像信号補正方法、ならびに電子機器
JP2004519921A (ja) * 2001-03-06 2004-07-02 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 ビデオ信号強調方法並びにこの方法を用いるユニット及び表示装置
KR100421016B1 (ko) * 2001-10-13 2004-03-04 삼성전자주식회사 비디오 신호의 흑신장 제어 장치 및 방법
KR20050040849A (ko) * 2001-11-01 2005-05-03 톰슨 라이센싱 에스.에이. 동적 콘트라스트 개선 방법
US7064740B2 (en) 2001-11-09 2006-06-20 Sharp Laboratories Of America, Inc. Backlit display with improved dynamic range
GB0130652D0 (en) * 2001-12-21 2002-02-06 Bae Systems Plc Improvements in or relating to low light level imaging devices
US7042522B2 (en) * 2002-08-01 2006-05-09 Samsung Electronics Co., Ltd. Adaptive contrast enhancement method using time-varying nonlinear transforms on a video signal
US8243004B2 (en) 2003-03-10 2012-08-14 Fergason Patent Properties, Llc Apparatus and method for preparing, storing, transmitting and displaying images
US7623105B2 (en) 2003-11-21 2009-11-24 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive color
US7164284B2 (en) * 2003-12-18 2007-01-16 Sharp Laboratories Of America, Inc. Dynamic gamma for a liquid crystal display
US8395577B2 (en) 2004-05-04 2013-03-12 Sharp Laboratories Of America, Inc. Liquid crystal display with illumination control
US7532192B2 (en) 2004-05-04 2009-05-12 Sharp Laboratories Of America, Inc. Liquid crystal display with filtered black point
US7872631B2 (en) 2004-05-04 2011-01-18 Sharp Laboratories Of America, Inc. Liquid crystal display with temporal black point
US7612757B2 (en) 2004-05-04 2009-11-03 Sharp Laboratories Of America, Inc. Liquid crystal display with modulated black point
US7777714B2 (en) 2004-05-04 2010-08-17 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive width
US7505018B2 (en) 2004-05-04 2009-03-17 Sharp Laboratories Of America, Inc. Liquid crystal display with reduced black level insertion
US7023451B2 (en) * 2004-06-14 2006-04-04 Sharp Laboratories Of America, Inc. System for reducing crosstalk
DE102004042792B3 (de) * 2004-09-03 2006-06-08 Siemens Ag Verfahren zur Verbesserung der Darstellung von CT-Aufnahmen
US7556836B2 (en) 2004-09-03 2009-07-07 Solae, Llc High protein snack product
US7898519B2 (en) * 2005-02-17 2011-03-01 Sharp Laboratories Of America, Inc. Method for overdriving a backlit display
US8050511B2 (en) * 2004-11-16 2011-11-01 Sharp Laboratories Of America, Inc. High dynamic range images from low dynamic range images
US8050512B2 (en) 2004-11-16 2011-11-01 Sharp Laboratories Of America, Inc. High dynamic range images from low dynamic range images
US7525528B2 (en) 2004-11-16 2009-04-28 Sharp Laboratories Of America, Inc. Technique that preserves specular highlights
CN101406038B (zh) * 2005-09-30 2011-02-23 Nxp股份有限公司 视频电平的动态柔性削峰
US8121401B2 (en) 2006-01-24 2012-02-21 Sharp Labortories of America, Inc. Method for reducing enhancement of artifacts and noise in image color enhancement
US9143657B2 (en) 2006-01-24 2015-09-22 Sharp Laboratories Of America, Inc. Color enhancement technique using skin color detection
US20080049129A1 (en) * 2006-08-28 2008-02-28 Meacham James H Imaging device with improved signal to noise performance
US8941580B2 (en) 2006-11-30 2015-01-27 Sharp Laboratories Of America, Inc. Liquid crystal display with area adaptive backlight
JP4853337B2 (ja) * 2007-03-09 2012-01-11 ソニー株式会社 信号変換装置
US8483508B2 (en) * 2008-08-19 2013-07-09 Kabushiki Kaisha Toshiba Digital image tone adjustment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760008A (en) * 1950-08-30 1956-08-21 Rca Corp Amplifier having controllable signal expansion and compression characteristics
GB2046051B (en) * 1979-03-29 1983-01-26 Philips Electronic Associated Real time histogram modification system for image processing
FR2456448A1 (fr) * 1979-05-11 1980-12-05 Thomson Csf Dispositif de commande automatique de la fonction de transfert d'un systeme de transmission videofrequence en vue d'ameliorer la perception des images
JPS56107674A (en) * 1980-01-31 1981-08-26 Sony Corp Gradation correcting device of video signal
US4403253A (en) * 1981-12-28 1983-09-06 General Electric Company Uniform distribution video processor with controlled reference voltages
US4589022A (en) * 1983-11-28 1986-05-13 General Electric Company Brightness control system for CRT video display
JPH0411432Y2 (enExample) * 1985-03-30 1992-03-23
JP2527592B2 (ja) * 1988-02-25 1996-08-28 三洋電機株式会社 撮像装置
US4829381A (en) * 1988-04-18 1989-05-09 Polaroid Corporation System and method for electronic image enhancement by dynamic pixel transformation
JPH031772A (ja) * 1989-05-30 1991-01-08 Sony Corp 撮像装置
US5003394A (en) * 1989-08-25 1991-03-26 Rca Licensing Corporation Dynamic video system including automatic contrast and "white-stretch" processing sections
JPH0437263A (ja) * 1990-05-31 1992-02-07 Matsushita Electric Ind Co Ltd 階調補正装置
JPH04183177A (ja) * 1990-11-19 1992-06-30 Matsushita Electric Ind Co Ltd 累積ヒストグラム回路および補間回路および画質補正回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100865246B1 (ko) * 2001-03-06 2008-10-27 코닌클리케 필립스 일렉트로닉스 엔.브이. 비디오 신호 강화 방법 및 유닛과 이를 사용하는디스플레이 장치

Also Published As

Publication number Publication date
US5422680A (en) 1995-06-06
SG63564A1 (en) 1999-03-30
ES2118854T3 (es) 1998-10-01
DE69319960D1 (de) 1998-09-03
CN1037223C (zh) 1998-01-28
DE69319960T2 (de) 1998-12-10
KR930024445A (ko) 1993-12-22
MY109269A (en) 1996-12-31
EP0570873A2 (en) 1993-11-24
JP3563087B2 (ja) 2004-09-08
EP0570873B1 (en) 1998-07-29
CN1086066A (zh) 1994-04-27
JPH0698278A (ja) 1994-04-08
EP0570873A3 (enExample) 1994-02-16

Similar Documents

Publication Publication Date Title
KR100276369B1 (ko) 화상성분 분석을 이용한 비선형 영상 신호 프로세서
US5696852A (en) Image signal processing apparatus
KR100512542B1 (ko) 비디오신호의화질보정회로
KR100257940B1 (ko) 피드백 제어된 "화이트스트레치" 처리 및 밝기 보상 기능을 갖는 비디오 시스템
CA2043325C (en) Contrast correction device
KR920010505B1 (ko) 디지탈 신호 처리 장치
CA1087300A (en) Luminance signal processor
DE69116250T2 (de) Kontrastkorrektor für Videosignal
EP0700208B1 (en) Automatic brightness contrast lighting circuits and luminance/color difference signal processor and video display apparatus comprising the same
US5841486A (en) Compensation voltage generating apparatus for multipicture display and video display including the same
US3752905A (en) Gamma control in the luminance channel of a color television transmitter
JPH06311396A (ja) 映像回路
JP2568515B2 (ja) 撮像装置
US7027098B2 (en) Picture-signal processing apparatus and method using weighting for black-level control
JP4326029B2 (ja) 撮像装置
KR100237957B1 (ko) 적응 히스토그램 등화방식을 이용한 티브이화면 대비 향상회로
US4079424A (en) Automatic transient beam current limiter
EP0632647A1 (en) Color video camera capable of improving gradation of dark signal level
KR910009509B1 (ko) 디지탈 영상처리용 수평윤곽 보정회로
KR19980014689A (ko) 히스토그램을 이용한 감마보정장치
JPH06208331A (ja) 表示装置
KR19990004705A (ko) 자동 윤곽 보정회로
KR19980066224U (ko) 영상신호의 윤곽보정회로
JPH07222029A (ja) 映像増幅回路
JPH01212971A (ja) 黒レベル補正回路

Legal Events

Date Code Title Description
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

A201 Request for examination
P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

PN2301 Change of applicant

St.27 status event code: A-3-3-R10-R13-asn-PN2301

St.27 status event code: A-3-3-R10-R11-asn-PN2301

D14-X000 Search report completed

St.27 status event code: A-1-2-D10-D14-srh-X000

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 5

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 6

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 7

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 8

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 9

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 10

FPAY Annual fee payment

Payment date: 20100928

Year of fee payment: 11

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 11

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20110929

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20110929