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AR003028A1 - Metodo y aparato para precompensar una imagen asimetrica en un sistema de proyeccion para exhibir una imagen - Google Patents

Metodo y aparato para precompensar una imagen asimetrica en un sistema de proyeccion para exhibir una imagen

Info

Publication number
AR003028A1
AR003028A1 ARP960103731A AR10373196A AR003028A1 AR 003028 A1 AR003028 A1 AR 003028A1 AR P960103731 A ARP960103731 A AR P960103731A AR 10373196 A AR10373196 A AR 10373196A AR 003028 A1 AR003028 A1 AR 003028A1
Authority
AR
Argentina
Prior art keywords
image
projector
projection angle
screen
compensating
Prior art date
Application number
ARP960103731A
Other languages
English (en)
Inventor
Seong-Jae Woo
Original Assignee
Daewoo 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 Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Publication of AR003028A1 publication Critical patent/AR003028A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)
  • Details Of Television Scanning (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

Un aparato y un método en un proyector, en el cual, a fin de proyectar una imagen clara en una pantalla sin la ocurrencia de keystoning o errortrapezoidal, una imagen asimétrica precompensada es revelada. En el aparato y método para precompensaru na imagen asimétrica en un proyector, cuando el lentede proyección del proyector es colocado en un ángulo de proyección ascendente o descendente, sin importar el ángulo de proyección. Un error trapezoidal de laimagen proyectado en la pantalla esprec ompensado en respuesta a la senal de fijación del ángulo de proyección de la sección de fijación del ángulo deproyección, de modo que la imagen sea proyectada normalmente a la pantalla (por ejemplo una imagen en forma de un rectágulo).Por co nsiguiente, elrendimiento o flexibilidad estructural del proyector es mejorada al usuar circuitos digitales y softwares para los mismos.
ARP960103731A 1995-07-25 1996-07-25 Metodo y aparato para precompensar una imagen asimetrica en un sistema de proyeccion para exhibir una imagen AR003028A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950022008A KR0173704B1 (ko) 1995-07-25 1995-07-25 투사형 화상표시시스템의 비대칭화면 보정장치

Publications (1)

Publication Number Publication Date
AR003028A1 true AR003028A1 (es) 1998-05-27

Family

ID=37068533

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP960103731A AR003028A1 (es) 1995-07-25 1996-07-25 Metodo y aparato para precompensar una imagen asimetrica en un sistema de proyeccion para exhibir una imagen

Country Status (16)

Country Link
US (1) US5664858A (es)
EP (1) EP0756425A3 (es)
JP (1) JPH10507332A (es)
KR (1) KR0173704B1 (es)
CN (1) CN1169228A (es)
AR (1) AR003028A1 (es)
AU (1) AU706332B2 (es)
BR (1) BR9606541A (es)
CA (1) CA2200863A1 (es)
CZ (1) CZ83697A3 (es)
HU (1) HUP9801147A3 (es)
PE (1) PE22498A1 (es)
PL (1) PL181365B1 (es)
RU (1) RU2151416C1 (es)
TW (1) TW326515B (es)
WO (1) WO1997004634A2 (es)

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US6191827B1 (en) * 1998-12-01 2001-02-20 Oplus Technologies Ltd. Electronic keystone correction for electronic devices with a visual display
US6305805B1 (en) 1998-12-17 2001-10-23 Gateway, Inc. System, method and software for correcting keystoning of a projected image
JP4493113B2 (ja) * 1999-01-29 2010-06-30 株式会社リコー プロジェクタおよび投影画像補正装置
EP1065560A1 (de) * 1999-07-02 2001-01-03 Optronik GmbH Potsdam Verfahren und Anordnung zur Projektion von Bildern unter spitzen Winkeln
JP3509652B2 (ja) * 1999-08-23 2004-03-22 日本電気株式会社 プロジェクタ装置
WO2001027694A1 (de) * 1999-10-09 2001-04-19 Lutz Richter Vorrichtung zur projektion von informationen auf eine geneigte fläche
GB2370714B (en) * 1999-12-18 2003-06-04 Lg Electronics Inc Apparatus and method for correcting distortion of image and image displayer using the same
KR100414083B1 (ko) * 1999-12-18 2004-01-07 엘지전자 주식회사 영상왜곡 보정방법 및 이를 이용한 영상표시기기
US6753907B1 (en) 1999-12-23 2004-06-22 Justsystem Corporation Method and apparatus for automatic keystone correction
US6511185B1 (en) * 2000-05-03 2003-01-28 Ati International Srl Method and apparatus for compensating a projected image
US6520647B2 (en) * 2000-08-17 2003-02-18 Mitsubishi Electric Research Laboratories Inc. Automatic keystone correction for projectors with arbitrary orientation
JP2002108322A (ja) * 2000-09-27 2002-04-10 Shadow Entertainment Inc 投影システム及び投影方法
US6481855B2 (en) 2001-01-12 2002-11-19 Infocus Corporation Keystone distortion correction system for use in multimedia projectors
DE10113835B4 (de) * 2001-03-21 2005-02-10 Carl Zeiss Jena Gmbh Projektionsanordnung zum Projizieren eines Bildes auf eine Projektionsfläche und Verfahren zum Ermitteln von nicht darzustellenden Bildpunkten eines Lichtmodulatorbildbereichs
JP3529369B2 (ja) * 2001-04-06 2004-05-24 Ｎｅｃビューテクノロジー株式会社 投写レンズシフト機構
US7001023B2 (en) 2003-08-06 2006-02-21 Mitsubishi Electric Research Laboratories, Inc. Method and system for calibrating projectors to arbitrarily shaped surfaces with discrete optical sensors mounted at the surfaces
KR20050080376A (ko) * 2004-02-09 2005-08-12 삼성전자주식회사 투사광학계 및 그것을 갖는 화상 투사 장치
US8619901B2 (en) 2008-04-25 2013-12-31 Sharp Laboratories Of America, Inc. Systems and methods for providing unequal message protection
JP5744418B2 (ja) 2010-05-18 2015-07-08 キヤノン株式会社 投影装置及び投影方法
JP5671901B2 (ja) * 2010-09-15 2015-02-18 セイコーエプソン株式会社 投射型表示装置およびその制御方法
US9723280B2 (en) * 2013-01-22 2017-08-01 Sony Corporation Projection type image display device, image processing device and image processing method, and computer program
KR102281834B1 (ko) 2020-07-24 2021-07-26 주식회사 레티널 증강 현실용 화상의 영상 보정 장치

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Also Published As

Publication number Publication date
EP0756425A3 (en) 1998-10-14
CA2200863A1 (en) 1997-02-13
KR970009326A (ko) 1997-02-24
TW326515B (en) 1998-02-11
HUP9801147A2 (hu) 1998-08-28
CZ83697A3 (en) 1997-07-16
CN1169228A (zh) 1997-12-31
HUP9801147A3 (en) 2002-07-29
WO1997004634A2 (en) 1997-02-13
RU2151416C1 (ru) 2000-06-20
EP0756425A2 (en) 1997-01-29
US5664858A (en) 1997-09-09
JPH10507332A (ja) 1998-07-14
PL181365B1 (en) 2001-07-31
BR9606541A (pt) 1998-07-28
PE22498A1 (es) 1998-05-04
AU706332B2 (en) 1999-06-17
KR0173704B1 (ko) 1999-03-20
WO1997004634A3 (en) 1997-03-06
AU6532596A (en) 1997-02-26
PL319435A1 (en) 1997-08-04

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