METHOD AND SYSTEM FOR VIDEO-BASED POSITIONING AND MAPPING

A method and system for obtaining, from at least one camera associated with a vehicle traveling through a road network, a sequence of images of a road or a road environment, each image being associated with a location where that image is captured, generating a local map representation of an area of the road network using at least some images from the sequence of images and the locations associated therewith, the generating including: processing the at least some of the images to detect an object in the road or the road environment, determining at least one transformation for tracking the object between the at least some of the images and, based on the at least one transformation and the locations associated with the at least some of the images, generating a two- or three-dimensional representation of the object relative to the area of the road network, comparing the local map representation with a reference map covering the area of the road network, and determining, based on the comparison, a geographical location and an orientation of the vehicle within the road network.