1. An object recognition apparatus comprising: a candidate image extraction unit that extracts a candidate image part, which is an image part of an object that may be a pedestrian, from a pickup image of a camera; a distance calculation unit that calculates a distance between a corresponding real space position and the camera on the candidate image part extracted by the candidate image extraction unit; and a candidate image determination unit which determines that, in a case where a first predetermined number or more candidate image parts whose corresponding real space positions belong to a determination area a distance of which from the camera in an imaging direction of the camera lies within a range of a first predetermined distance or more and a second predetermined distance or less and a width of which in a horizontal direction orthogonal to the imaging direction is a predetermined width or less, are extracted by the candidate image extraction unit, the candidate image parts having the corresponding real space positions thereof belonging to the determination area have low possibility to be image parts of a pedestrian.