1. Driving support apparatus comprising: image pickup means mounted on a mobile unit; conversion means for converting one or more images picked up by said image pickup means to an image seen from a virtual viewpoint above said image pickup means or an image orthogonal-projected from above based on a road surface model; detection means for detecting three-dimensional information other than that on the road surface based on a parallax between images picked up by said image pickup means; distortion correction means for correcting distortion of a figure in an image, for which said viewpoint conversion is performed, based on said detected three-dimensional information; and display means for displaying an image for which said distortion-corrected is performed.