Optics: image projectors – Distortion compensation – For projection axis inclined to screen
Reexamination Certificate
2006-05-02
2006-05-02
Mahoney, Christopher (Department: 2851)
Optics: image projectors
Distortion compensation
For projection axis inclined to screen
C348S746000, C382S171000
Reexamination Certificate
active
07036940
ABSTRACT:
In order to provide an image processing system, a projector, a portable device, and an image processing method that enable the correction of keystone distortion in the horizontal direction automatically and also appropriately, a remote controller operated by the viewer is provided with a projection area imaging function and a direction determination function; a receiver section is used to receive imaging information and direction information; a horizontal keystone distortion correction section is used to select a keystone distortion correction value from a 3D-LUT containing keystone distortion correction values, based on the imaging information and direction information; and a resizing section is used to correct the keystone distortion.
REFERENCES:
patent: 5612736 (1997-03-01), Vogeley et al.
patent: 6222593 (2001-04-01), Higurashi et al.
patent: 6305805 (2001-10-01), Liebenow
patent: 6483537 (2002-11-01), Mayer et al.
patent: 6520647 (2003-02-01), Raskar
patent: 6618076 (2003-09-01), Sukthankar et al.
patent: 6733138 (2004-05-01), Raskar
patent: 6846081 (2005-01-01), Mochizuki et al.
patent: 2002/0051095 (2002-05-01), Su
patent: 197 19 828 (1998-11-01), None
patent: A 4-355740 (1992-12-01), None
patent: A 5-30520 (1993-02-01), None
patent: A 6-269014 (1994-09-01), None
patent: A 8-9309 (1996-01-01), None
patent: A-08-009309 (1996-01-01), None
patent: A 8-271852 (1996-10-01), None
patent: A-09-326981 (1997-12-01), None
patent: A 10-93984 (1998-04-01), None
patent: A 10-200836 (1998-07-01), None
patent: A-2000-081593 (2000-03-01), None
patent: A 2000-81593 (2000-03-01), None
patent: A 2000-241874 (2000-09-01), None
patent: A 2001-61121 (2001-03-01), None
patent: A 2001-83949 (2001-03-01), None
patent: A-2001-083949 (2001-03-01), None
patent: A 2002-112148 (2002-04-01), None
patent: A 2002-247614 (2002-08-01), None
patent: A 2003-5277 (2003-01-01), None
patent: A 2003-18503 (2003-01-01), None
patent: WO 99/14716 (1999-03-01), None
Sukthankar R. et al.; “Automatic Keystone Correction for Camera-Assisted Presentation Interfaces;” Lecture Notes in Computer Science, Springer Verlag, New York, NY, U.S.A., Oct. 12, 2000; pp. 607-614.
Kobayashi Masanobu
Matsuda Hideki
Mahoney Christopher
Oliff & Berridg,e PLC
Seiko Epson Corporation
LandOfFree
Image processing system, projector, portable device, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image processing system, projector, portable device, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing system, projector, portable device, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3555856