Computer graphics processing and selective visual display system – Image superposition by optical means
Reexamination Certificate
2007-08-29
2010-10-26
Nguyen, Kimnhung (Department: 2629)
Computer graphics processing and selective visual display system
Image superposition by optical means
C345S008000, C345S204000, C359S629000
Reexamination Certificate
active
07821475
ABSTRACT:
The image display apparatus is capable of reducing moire fringe when electric inverse-correction is performed on an image output to an image display element. The apparatus includes an optical system for observation of an image displayed on an image display element, a processor performing distorting processing that electrically provides to an input image a distortion in a direction inverse to that of distortion as aberration generated by the optical system, and a filter providing a low-pass filter effect to the image observed through the optical system. When a first image region including a first number of pixels in the input image is converted into a second image region including a second number of pixels by the distorting processing, the filter provides the low-pass filter effect depending on the relationship between the first and second numbers of pixels to the second image region.
REFERENCES:
patent: 5001576 (1991-03-01), Tanaka et al.
patent: 5235437 (1993-08-01), Katagiri et al.
patent: 5327263 (1994-07-01), Katagiri et al.
patent: 5852443 (1998-12-01), Kenworthy
patent: 5936773 (1999-08-01), Togino
patent: 6069716 (2000-05-01), Yamamoto
patent: 6710909 (2004-03-01), Naito
patent: 6715885 (2004-04-01), Hirose et al.
patent: 7609880 (2009-10-01), Sakashita
patent: 2002/0071185 (2002-06-01), Chretien et al.
patent: 2006/0119951 (2006-06-01), McGuire
patent: 2006/0284862 (2006-12-01), Uvarov et al.
patent: 2007/0052700 (2007-03-01), Wheeler et al.
patent: 06-265815 (1994-09-01), None
patent: 2001-186442 (2001-07-01), None
Tsuyuki Motomi
Yamazaki Shoichi
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Nguyen Kimnhung
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