Patent ID: 6917383

Claim:
An image sensing device comprising: a) image sensing means having individual image sensing elements for red (R), green (G), and blue (B), in which three image sensing elements are arranged in an obliquely shifted disposition so that the image sensing element for G may be shifted from the image sensing elements for R and B by Ph/2+a and Pv/2+b, respectively, in the horizontal and vertical direction where Ph and Pv are pixel arrangement intervals of the image sensing elements in the horizontal and vertical direction respectively, a and b are positive constants satisfying the relation of 0<a<Ph/2 and 0<b<Pv/2; b) luminance signal generating means, which processes the output signal of the image sensing means in such way i) that said luminance signal generating means may generate a first luminance signal of which number of pixels in the horizontal direction is 2 times that of the image sensing element for G by using pixel signals of the image sensing elements for R and B and the signal from the pixel of the image sensing element for G positioned at one of the closest lower left position and closest lower right position in space to the image sensing elements for R and B, and ii) that said luminance signal generating means may generate a second luminance signal of which number of pixels in the horizontal direction is 2 times that of the image sensing element for G by using pixel signals of the image sensing elements for R and B and the signal from the pixel of the image sensing element for G positioned at one of the closest upper left position and closest upper right position in space to the latter image sensing elements for R and B; c) sampling frequency converting means, which reduces at least one sampling frequency in the horizontal direction and vertical direction of the first luminance signal at a specified ratio, and generates as a third luminance signal; and d) second memory means, which stores the first luminance signal and second luminance signal, and issues the first luminance signal and second luminance signal alternately in every line, wherein the output signal of said sampling frequency converting means is a moving picture image sensing output, and the output of said second memory means is a still picture image sensing output.