Patent ID: 9046364
Filing Date: 2015-06-02
Classification: G01C,G01S,G06T

Abstract:
1. A distance measurement device, comprising: an imaging unit configured to image an image around a vehicle while the vehicle is moving; a feature point detecting unit configured to detect feature points of a plurality of objects present around the vehicle from the image imaged by the imaging unit; a first distance calculating unit configured to calculate a first distance from a feature point to the imaging unit based on a temporal change of the feature point detected by the feature point detecting unit; a second distance calculating unit configured to calculate a second distance from a certain object included in the plurality of objects present in the image to the imaging unit using some pixels of the certain object; and a scale modifying unit configured to extract a certain feature point matching some pixels of the certain object from among the feature points of the plurality of objects, calculate a ratio of the first distance and the second distance in the certain feature point, and modify the first distance of the feature points, other than the certain feature point, simultaneously detected by the feature point detecting unit based on the ratio.