Photoelectric conversion device, movable apparatus, processing method, and storage medium for generating a differential image

Abstract

A photoelectric conversion device according to one embodiment of the present disclosure has a plurality of pixels, a control unit, and a generating unit. Each pixel of the plurality of pixels includes a sensor unit that emits a pulse at a frequency corresponding to a photon reception frequency, a first counter and a second counter that count a number of the pulses, and a first memory that stores the count value for the first counter, and a second memory that stores the count value for the second counter. The control unit controls the plurality of pixels such that during a read-out operation for the count values that have been accumulated during a plurality of different accumulation periods within a full frame period from each of the first counter and the second counter, a count value for a first accumulation period is read out before an end time of a second accumulation period that is longer than the first accumulation period, and performs control such that a read-out timing for each accumulation period becomes different between the first counter and the second counter. The generating unit generates a differential image based on a difference in signals corresponding to the count values that are output from the first memory and the second memory respectively.