Color imaging element and imaging device

摘要

According to a color imaging element and an imaging device of the present invention, it is possible to simplify processing in a subsequent stage compared to the case of a random array, improve reproduction precision of de-mosaic processing in a high frequency range, facilitate de-mosaic processing as a result of increase in types of peripheral colors, discern a direction with high correlation between a horizontal direction and a vertical direction, and suppress aliasing upon de-mosaic processing.

主权项

1. A single plate color imaging element, comprising:
a plurality of pixels comprised of photoelectric conversion elements arranged in a first direction and in a second direction perpendicular to the first direction; and color filters disposed on the plurality of pixels, wherein an array of the color filters comprises a basic array pattern in which the color filters are arranged in an array pattern corresponding to M×M (where M is an integer of three or greater) pixels in the first direction and in the second direction, the basic array pattern being repeatedly disposed in the first direction and in the second direction, the color filters comprise a first filter corresponding to a first color of one or more colors and a second filter corresponding to a second color of two or more colors, the second color having a lower contribution ratio to obtain a brightness signal than the first color, a ratio of the number of all pixels of the first color corresponding to the first filter is higher than a ratio of the number of pixels of each color of the second color corresponding to the second filter, in the basic array pattern, the first filter is disposed in a peripheral portion configuring two adjacent sides among four sides of the array pattern corresponding to M×M (where M is an integer of three or greater) pixels, and the second filter is disposed in a portion other than the peripheral portion configuring the two sides such that a ratio of the number of pixels of the second color is higher than a ratio of the number of pixels of the first color in the portion other than the peripheral portion configuring the two sides.