An image sensing device free from change in the angle of view between taking
moving
picture and taking still picture, small in power consumption in moving picture
taking, and small in sensitivity drop if the size of the optical system is the
same. The image sensing means has exclusive image sensing elements for red (R),
green (G), and blue (B), and the three image sensing elements are disposed by shifting
the pixels obliquely. Luminance signal generating means generates a first luminance
signal of which number of pixels in the horizontal direction is 2 times that of
the image sensing device for G, and generates a second luminance signal of which
number of pixels in the horizontal direction is 2 times that of the image sensing
device for G. Sampling frequency converting means decreases the sampling frequency
at a specific ratio, and generates as a third luminance signal. Second memory means
stores the first luminance signal and second luminance signal, and issues them
alternately in every line. This image sensing device utilizes the output signal
of the sampling frequency converting means as a moving picture output, and the
output of the second memory means as a still picture output.
