MONOCULAR-MOTION-STEREO DISTANCE ESTIMATION METHOD, AND MONOCULAR-MOTION-STEREO DISTANCE ESTIMATION APPARATUS

Provided are a distance estimating method and a distance estimating device with monocular motion stereo that allow simple estimation of a distance to an object in captured images. The distance estimating device mounted on a vehicle includes a camera capturing images, an image storage storing the captured images, an optical flow calculating unit calculating an optical flow from an image center based on the images, a speed sensor measuring a vehicle speed, and a distance estimator estimating a distance to the object appearing in the images in accordance with the optical flow from the image center and the vehicle speed.