An information processing apparatus according to embodiments of the present invention includes an input obtaining unit configured to repeatedly obtain an input image that is obtained through imaging by an imaging unit oriented in a direction intersecting with a predetermined surface, the input image having pixels each representing a distance along the direction, an identifying unit configured to identify, in the obtained input image, an object area where an object that is present between the predetermined surface and the imaging unit is imaged, and a correcting unit configured to correct a distance represented by each pixel in the input image repeatedly obtained by the input obtaining unit, by using a correction value obtained based on a difference between a distance represented by a pixel of a portion of the input image excluding the object area and reference distance between the imaging unit and the predetermined surface.