Method of detecting alignment error of lenses and...

Details Method of detecting alignment error of lenses and... Method of detecting alignment error of lenses and...

2006-01-13

2010-06-01

Patel, Kanji (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C359S619000

Reexamination Certificate

active

07729562

ABSTRACT:
A method of detecting the alignment error of lenses and reducing image distortion attributable to the alignment error in a lens-type 3-dimensional liquid crystal display monitor. A method of detecting the alignment error of lenses in a 3D display using a purpose-built test pattern image, which predicts the alignment error in such a way as to calculate variation in view indices of pixels in a lateral direction, observed by an eye of an observer, if there is alignment error in the lenses. A method of compensating for image distortion in a 3D monitor, including the steps of finding the relationship between the pixels of a Liquid Crystal Display (LDC) panel and the pixels of observed images, which are determined depending on the location of an observer; and compensating for image distortion attributable to the rotational and translational alignment error of the lenses based on the found relationship.

REFERENCES:
patent: 6795241 (2004-09-01), Holzbach
patent: 6801243 (2004-10-01), Van Berkel
patent: 6882381 (2005-04-01), Sumida et al.
patent: 7110103 (2006-09-01), Montgomery et al.
patent: 2002/0114078 (2002-08-01), Halle et al.
patent: 2005/0185711 (2005-08-01), Pfister et al.
“Reduction of the distortion due to non-ideal lens alignment in lenticular 3D displays”, Yun-Gu Lee and Jong Beom Ra, Electronic Imaging 2005, Jan. 16-20, 2005, San Jose, CA, vols. 5665-5685.

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