Image interpolating device, including interpolation and...

Details Image interpolating device, including interpolation and... Image interpolating device, including interpolation and...

2006-05-16

2006-05-16

Ometz, David (Department: 2615)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S272000, C348S223100, C345S589000

Reexamination Certificate

active

07046277

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 G-signal is modified, using the modified luminance value YG, and the color difference signals Cb and Cr.

REFERENCES:
patent: 6611287 (2003-08-01), Yamamoto et al.
patent: 6836289 (2004-12-01), Koshiba et al.
patent: 2002/0093510 (2002-07-01), Abe
U.S. Appl. No. 10/043,127 to Abe, entitled “Image Interpolating Device”, which was filed on Jan. 14, 2002.
U.S. Appl. No. 10/043,318 to Abe, entitled “Image Interpolating Device”, which was filed on Jan. 14, 2002.
U.S. Appl. No. 10/050,990 to Abe, entitled “Image Interpolating Device”, which was filed on Jan. 22, 2002.

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