TWI380694B - - Google Patents

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Publication number
TWI380694B
TWI380694B TW094121014A TW94121014A TWI380694B TW I380694 B TWI380694 B TW I380694B TW 094121014 A TW094121014 A TW 094121014A TW 94121014 A TW94121014 A TW 94121014A TW I380694 B TWI380694 B TW I380694B
Authority
TW
Taiwan
Prior art keywords
projection
image
light
dark
distortion
Prior art date
Application number
TW094121014A
Other languages
English (en)
Chinese (zh)
Other versions
TW200614815A (en
Inventor
Yukinobu Sugiyama
Original Assignee
Hamamatsu Photonics Kk
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 Hamamatsu Photonics Kk filed Critical Hamamatsu Photonics Kk
Publication of TW200614815A publication Critical patent/TW200614815A/zh
Application granted granted Critical
Publication of TWI380694B publication Critical patent/TWI380694B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/147—Optical correction of image distortions, e.g. keystone
    • 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
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
TW094121014A 2004-06-24 2005-06-23 System and method for detecting distortion TW200614815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004186940A JP4920178B2 (ja) 2004-06-24 2004-06-24 歪み検出システムおよび歪み検出方法

Publications (2)

Publication Number Publication Date
TW200614815A TW200614815A (en) 2006-05-01
TWI380694B true TWI380694B (enExample) 2012-12-21

Family

ID=35780529

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094121014A TW200614815A (en) 2004-06-24 2005-06-23 System and method for detecting distortion

Country Status (5)

Country Link
US (1) US8272747B2 (enExample)
EP (1) EP1775944A4 (enExample)
JP (1) JP4920178B2 (enExample)
TW (1) TW200614815A (enExample)
WO (1) WO2006001217A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007078821A (ja) * 2005-09-12 2007-03-29 Casio Comput Co Ltd 投影装置、投影方法及びプログラム
JP2010224361A (ja) * 2009-03-25 2010-10-07 Seiko Epson Corp 制御装置及びプロジェクター
CN109544500A (zh) * 2017-09-20 2019-03-29 诚锋兴业股份有限公司 鞋面组装操作的辨识装置及辨识方法
CN110418124B (zh) * 2019-08-05 2021-11-30 歌尔光学科技有限公司 投影图像检测方法、装置、设备及计算机可读存储介质
CN113055664A (zh) * 2021-04-20 2021-06-29 峰米(北京)科技有限公司 一种投影图像自动梯形矫正系统以及方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593308A (en) 1984-04-27 1986-06-03 General Electric Company Automatic correction of centering and convergence errors in CRT displays
JP2653899B2 (ja) * 1990-06-07 1997-09-17 松下電器産業株式会社 画像補正装置
JP3409330B2 (ja) * 1991-02-08 2003-05-26 ソニー株式会社 投射型表示装置の調整装置および調整方法
EP0616473B1 (en) * 1993-03-17 1999-12-15 Matsushita Electric Industrial Co., Ltd. Image correction apparatus
JP2940353B2 (ja) * 1993-08-24 1999-08-25 日本電気株式会社 投写型ディスプレイの幾何学歪調整装置
JPH07131802A (ja) * 1993-11-05 1995-05-19 Matsushita Electric Ind Co Ltd 画像補正装置
DE19517346A1 (de) * 1995-05-11 1996-11-14 Wacker Chemie Gmbh Emulsionen von Organosiliciumverbindungen für die Hydrophobierung von Baustoffen
JPH1141629A (ja) 1997-07-15 1999-02-12 Minolta Co Ltd 校正パターン表示装置及びこの校正パターン表示装置が適用されるカラー表示装置の表示特性測定装置
JP2000214577A (ja) 1999-01-25 2000-08-04 Mitsubishi Electric Corp パタ―ン歪検出方法、パタ―ン歪検出装置およびその記録媒体
TW472491B (en) * 1999-03-19 2002-01-11 Seiko Epson Corp Projection system and projector
US6292171B1 (en) 1999-03-31 2001-09-18 Seiko Epson Corporation Method and apparatus for calibrating a computer-generated projected image
TW556440B (en) 2001-11-22 2003-10-01 Macronix Int Co Ltd Method and device for preventing trapezoidal distortion in projected image
US7193197B2 (en) * 2001-12-05 2007-03-20 Hamamatsu Photonics K.K. Light detection device, imaging device and distant image acquisition device
JP3965049B2 (ja) * 2001-12-21 2007-08-22 浜松ホトニクス株式会社 撮像装置
JP2004088169A (ja) 2002-08-22 2004-03-18 Nisca Corp 画像表示装置

Also Published As

Publication number Publication date
TW200614815A (en) 2006-05-01
JP4920178B2 (ja) 2012-04-18
US8272747B2 (en) 2012-09-25
EP1775944A4 (en) 2009-09-16
JP2006013812A (ja) 2006-01-12
EP1775944A1 (en) 2007-04-18
WO2006001217A1 (ja) 2006-01-05
US20080297733A1 (en) 2008-12-04

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Legal Events

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