1. An apparatus of estimating a position of a moving vehicle, the apparatus comprising: a feature point matching unit which generates vectors connecting feature points of a previous image frame and feature points of a current image frame, corresponding to the feature points of the previous image frame, and determines spatial correlations between the feature points of the current image frame; a clustering unit which configures at least one motion cluster by grouping at least one vector among the vectors based on the spatial correlations; and a noise removal unit which removes noise from each motion cluster of the at least one motion cluster, wherein the position of the moving vehicle is estimated based on the at least one motion cluster.