DRIVING ASSISTANCE METHOD AND SYSTEM

The present invention relates to a method (200,300) of assisting driving a vehicle (5). The method (200,300) is implemented by a system (1) comprising an HMD (10) and a positioning module (20) mounted on the vehicle (5), wherein the HMD (10) comprises a screen (11) and a pair of video cameras (15) located on opposite sides of the screen (11) along a main length direction of the screen (11). The method (200,300) comprises the steps of: a. acquiring (301) a pair of images (IL,IR) by means of the HMD (10), each image being acquired by a respective camera (15) of the HMD (10) and framing a same portion of field of view (FOV), said same portion of field of view (FOV) comprising a portion of road surface (ORO); b. estimating (303) a position in a three-dimensional space (VOL) of each point comprised in the same portion of field of view based on the pair of acquired images and the characteristics of the cameras; c. estimating (305) a volume of interest (VC) of the three-dimensional space (VOL) comprising the portion of the road surface (ORO) based on the pair of images (IL,IR) acquired and a position determined by the positioning module (5) in the contiguity of the acquisition of the pair of images (IL,IR); d. selecting (307) a subset of points comprised in the same portion of the field of view (FOV) and comprised in the volume of interest (VC); e. calculating (309) a planar surface (RS) corresponding to the road surface (ORO) based on the estimated position of the points comprised in the subset of selected points, and g. reproducing (311, 313, 215) a two-dimensional image (AR) on the screen (11) of the HMD (10) so that it is arranged on the planar surface (RS) corresponding to the road surface (ORO) calculated in step e.