Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2007-12-25
2007-12-25
Alavi, Amir (Department: 2624)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
C382S149000
Reexamination Certificate
active
11111287
ABSTRACT:
A method and apparatus for defect pixel correction in an image sensor. The method may include calculating a median of extrapolated values of right neighboring and left neighboring pixel values of a potentially defective pixel.
REFERENCES:
patent: 5321528 (1994-06-01), Nakamura
patent: 5608204 (1997-03-01), Hofflinger et al.
patent: 6091847 (2000-07-01), Chiu et al.
patent: 6728483 (2004-04-01), Smart et al.
patent: 6816625 (2004-11-01), Lewis et al.
patent: 7092628 (2006-08-01), Lawther et al.
patent: 7199824 (2007-04-01), Chang et al.
patent: 7206012 (2007-04-01), Cook et al.
patent: 7206461 (2007-04-01), Steinberg et al.
patent: 2006/0115149 (2006-06-01), Van Der Heide
patent: 2006/0239580 (2006-10-01), Dierickx
patent: 0260954 (1988-03-01), None
patent: 0481373 (1992-04-01), None
patent: 0739039 (1996-10-01), None
patent: 0773669 (1997-05-01), None
patent: WO93/19489 (1993-09-01), None
patent: WO99/16238 (1999-04-01), None
G. Meynants, B. Dierickx, “A circuit for the correction of pixel defects in image sensors”, ESSCIRC, Den Haag, Sep. 22-24, 1998; published in Proc. ESSCIRC'98, pp. 312-315, 1998.
W.J. Martin et al., “Dynamic Offset Null” IBM Technical Disclosure Bulletin, vol. 23, No. 9, 2/81, p. 4195/4196 XP002052268.
Bart Dierickx, Guy Meynants, “Missing pixel correction algorithm for image sensors”, www.http://www.imec.be/bo, Europto-SPIE/AFPAEC, May 18-21, 1998, Zurich, CH. Version Apr. 9, 1998, printed on May 15, 1998, 3:49 p.m.
Roland Perko et al., “Geometrical Accuracy of Bayer Pattern Images”, Conference Proceedings ISBN 80-903100-7-9, WSCG2005, Jan. 31-Feb. 4, 2005, Plzen, Czech Republic.
Bart Dierickx et al., “Random addressable active pixel image sensors”, SPIE vol. 2950, 0-8194-2354-8/96.
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