Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2009-04-08
2011-11-15
Selby, Gevell (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S222100, C348S370000
Reexamination Certificate
active
08059165
ABSTRACT:
A first image obtained by capturing white paper placed under an illuminant having known illuminant information using an image capturing device is input together with identification information of the illuminant, and illuminant information of the illuminant having the known illuminant information is obtained together with the identification information of the illuminant. A table is generated by associating a chromaticity of the first image with the obtained illuminant information based on the identification information. A second image obtained by capturing the white paper placed under an illuminant having unknown illuminant information using the image capturing device is input, and illuminant information of the illuminant having the unknown illuminant information is estimated from a chromaticity of the second image by referring to the table.
REFERENCES:
patent: 6249601 (2001-06-01), Kim et al.
patent: 7206072 (2007-04-01), Takahashi et al.
patent: 2009/0003696 (2009-01-01), Ishii et al.
patent: 2009/0141975 (2009-06-01), Li
patent: 2004-177396 (2004-06-01), None
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Selby Gevell
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