The present invention is directed to implementing at least one of speed-up of detection processing and reduction of misdetection. An information processing apparatus includes an acquisition unit configured to acquire a captured image, a first setting unit configured to set a plurality of detection areas of an object for the captured image, a second setting unit configured to set a condition for detecting an object on a first detection area and a second detection area set by the first setting unit, wherein the condition includes a detection size in the captured image, and a detection unit configured to detect an object satisfying the detection size set by the second setting unit from the plurality of detection areas set by the first setting unit.