Image sensing apparatus capable of outputting image by converting resolution by adding and reading out a plurality of pixels, its control method, and image sensing system

摘要

An image sensing apparatus has a plurality of pixels, and can output an image by converting its resolution by adding and reading out pixels for respective pixel groups each including a predetermined number of pixels of the plurality of pixels. Each pixel has a photoelectric conversion unit, an amplifier for amplifying and outputting a signal from the photoelectric conversion unit, and a capacitor connected to the output of the amplifier. The apparatus has a plurality of switches for commonly connecting between the capacitors of two or more pixels of the plurality of pixels.