Television – Camera – system and detail – Optics
Reexamination Certificate
2011-08-09
2011-08-09
Lam, Hung (Department: 2622)
Television
Camera, system and detail
Optics
C348S243000, C348S248000
Reexamination Certificate
active
07995133
ABSTRACT:
A method of correcting an image signal generated by a charge coupled device (CCD) image sensor in an imaging system is provided. The imaging system stores a number of gamma correction curves, each of which includes a respective correction factor for increasing contrast in a dark portion of the image signal. The method includes: measuring gray scale value of each pixel of the CCD image sensor; estimating a contrast level of an object scene to be imaged using the measured gray scale values; and correcting the image signal using a corresponding gamma correction curve depending on the estimated contrast level of the object scene.
REFERENCES:
patent: 5585841 (1996-12-01), Hardin
patent: 7136100 (2006-11-01), Kato et al.
patent: 7545411 (2009-06-01), Mabuchi et al.
patent: 7551212 (2009-06-01), Ise
patent: 7750947 (2010-07-01), Ahn
patent: 2003/0107681 (2003-06-01), Otawara et al.
patent: 2004/0246858 (2004-12-01), Saigusa et al.
patent: 2005/0285952 (2005-12-01), Kwon et al.
patent: 2006/0119722 (2006-06-01), Mabuchi et al.
patent: 2006/0274173 (2006-12-01), Yoshida et al.
patent: 2007/0216956 (2007-09-01), Hsieh et al.
Liu Tai-Hsin
Shih Pao-Ming
Hon Hai Precision Industry Co. Ltd.
Knapp Jeffrey T.
Lam Hung
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