Image interpolating device

Details Image interpolating device Image interpolating device

2006-09-12

2006-09-12

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S600000, C345S606000

Reexamination Certificate

active

07106341

ABSTRACT:
An image interpolating device comprises a color filter, in which R, G, and B color filter elements are disposed in a checkerboard arrangement, and an imaging device which generates R, G, and B-signals corresponding to the color filter elements. In an interpolation process, the differences between a G-signal of an objective pixel and G-signals of pixels adjacent to the right, left, upper, and lower sides of the objective pixel are checked. For example, if the G-signal of the left side pixel is the closest to that of the objective pixel, a luminance value Y, color difference signals Cb and Cr, and a modified luminance signal YG of the objective pixel are obtained using the R, G, and B-signals of the left side pixel. Regarding the objective pixel, a B-signal is obtained and the R-signal and the G-signal are modified, using the modified luminance value YG, and the color difference signals Cb and Cr.

REFERENCES:
patent: 6570616 (2003-05-01), Chen
patent: 6836289 (2004-12-01), Koshiba et al.

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