1. A power supply control apparatus comprising: a transition unit that makes a control target that includes processing units enter a power supply state or a power shutoff state, power being selectively supplied to the processing units in the power supply state; a detector that detects a moving object while the control target is in the power shutoff state; a first image capturing unit that captures images of a specific area at the time when the detector detects a moving object; a command unit that commands the transition unit to make the control target enter the power supply state in a case where it is determined that the moving object is approaching the control target in accordance with image information of the images captured by the first image capturing unit; a second image capturing unit that captures a characteristic image of the moving object that is approaching the control target; and an identity recognition unit that performs identity recognition for the moving object in accordance with image information of the characteristic image captured by the second image capturing unit.