APPARATUS, METHOD, AND PROCESSOR FOR MEASURING CHANGE IN DISTANCE BETWEEN A CAMERA AND AN OBJECT

摘要

Provided is an apparatus for measuring a distance change, the apparatus including an information acquisition unit, an object determination unit, a feature point determination unit, an optical flow calculator, a matching point determination unit, an object length change calculator that calculates a length change ratio between an object of a first frame image and an object of a second frame image by using a feature point and a matching point, and a distance change calculator that calculates a change from a distance between a camera and the object from when the camera acquires the first frame image and when the camera acquires the second frame image using the calculated length change ratio.

主权项

1. On a processor, a method of measuring a distance change, the method comprising:
acquiring characteristic information of an object in a first frame image, characteristic information of a background of the first frame image, and input characteristic information of a second frame image; determining, based on an optical flow calculated between the object in the first frame image and the object in the second frame image, a feature point of the object in the first frame image and a matching point of the object in the second frame image, wherein the matching point corresponds to the feature point; calculating a length change ratio between the object in the first frame image and the object in the second frame image by using the feature point and the matching point; and calculating a change in a distance between a camera and the object from when the camera acquires the first frame image and when the camera acquires the second frame image by using the length change ratio.