AU1445692A - Method and apparatus for calibrating geometrically an optical computer input system - Google Patents

Method and apparatus for calibrating geometrically an optical computer input system

Info

Publication number
AU1445692A
AU1445692A AU14456/92A AU1445692A AU1445692A AU 1445692 A AU1445692 A AU 1445692A AU 14456/92 A AU14456/92 A AU 14456/92A AU 1445692 A AU1445692 A AU 1445692A AU 1445692 A AU1445692 A AU 1445692A
Authority
AU
Australia
Prior art keywords
geometrically
calibrating
input system
computer input
optical computer
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.)
Abandoned
Application number
AU14456/92A
Inventor
Roger N Marshall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proxima Corp
Original Assignee
Proxima Corp
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 Proxima Corp filed Critical Proxima Corp
Publication of AU1445692A publication Critical patent/AU1445692A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
AU14456/92A 1991-02-14 1992-01-31 Method and apparatus for calibrating geometrically an optical computer input system Abandoned AU1445692A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65680391A 1991-02-14 1991-02-14
US656803 1996-06-03

Publications (1)

Publication Number Publication Date
AU1445692A true AU1445692A (en) 1992-09-15

Family

ID=24634636

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14456/92A Abandoned AU1445692A (en) 1991-02-14 1992-01-31 Method and apparatus for calibrating geometrically an optical computer input system

Country Status (3)

Country Link
JP (1) JPH05153532A (en)
AU (1) AU1445692A (en)
WO (1) WO1992015084A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08179888A (en) * 1994-12-21 1996-07-12 Hitachi Ltd Input device for large screen display
JPH10333088A (en) * 1997-05-28 1998-12-18 Canon Inc Display method of projected picture and projective picture display device
DE19737374C2 (en) 1997-08-27 1999-09-02 Ldt Gmbh & Co Method for compensating geometric image errors in video images and a projector for carrying out the method
US6305805B1 (en) * 1998-12-17 2001-10-23 Gateway, Inc. System, method and software for correcting keystoning of a projected image
JP2000222110A (en) * 1999-01-29 2000-08-11 Ricoh Elemex Corp Coordinate input device
JP3844075B2 (en) * 2003-01-17 2006-11-08 セイコーエプソン株式会社 Image processing system, projector, program, information storage medium, and image processing method
KR20050109468A (en) * 2003-03-26 2005-11-21 마쯔시다덴기산교 가부시키가이샤 Video display system
JP4595410B2 (en) * 2004-07-08 2010-12-08 カシオ計算機株式会社 Projection system, projection condition setting method and program
US10318067B2 (en) 2014-07-11 2019-06-11 Hewlett-Packard Development Company, L.P. Corner generation in a projector display area

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047528A (en) * 1973-08-27 1975-04-28
US5070465A (en) * 1987-02-25 1991-12-03 Sony Corporation Video image transforming method and apparatus
JPH0769768B2 (en) * 1987-07-16 1995-07-31 アルプス電気株式会社 Coordinate input device
FR2652695B1 (en) * 1989-10-03 1993-04-16 Thomson Csf METHOD AND DEVICE FOR VISUALIZING IMAGES, WITH AUTOMATIC CORRECTION OF DEFECTS BY FEEDBACK.

Also Published As

Publication number Publication date
JPH05153532A (en) 1993-06-18
WO1992015084A1 (en) 1992-09-03

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