Patent ID: 7760959

Claim:
An imaging apparatus comprising: a pixel unit having a plurality of components, each having a plurality of pixels arranged in row and column directions, the plurality of pixels in each component outputting color signals having a plurality of colors; and an adding unit including a plurality of units each configured to perform an addition of color signals of the same color in a corresponding component, the color signals of the same color in the corresponding component being outputted from the plurality of pixels, wherein each unit of the adding unit comprises: a plurality of first memory devices configured to respectively hold the color signals output from pixels in a selected row of the corresponding component; and a plurality of second memory devices, the color signals held in the plurality of first memory devices being added and the added result being stored in a second memory device selected from the plurality of second memory devices, and the added results stored in the plurality of second memory devices being added to generate a signal of the corresponding component, and wherein the adding unit performs the addition without adding a color signal outputted from a part of the plurality of pixels in each component such that spatial centroids of the added color signals having a plurality of colors are located at substantially the same pitch at least in one of the row and column directions.