02-01-2020 дата публикации
Номер: US20200001877A1
Принадлежит:
A method and a system determine visibility distances based on a dynamic Field of View (FoV) of a subject vehicle. A vehicle incorporates the system. Map polygons are created, each of which determines edges of a road in a map of the surroundings of the subject vehicle. Further, visible areas are determined in the map by intersecting the map polygons with the dynamic FoV. Based on the visible areas, a visibility distance for the road is determined. 112141. A method of determining visibility distances () based on a dynamic Field of View , FoV , () of an ego vehicle () , comprising the following steps:{'b': 10', '14', '3', '1, 'initializing (S) the dynamic FoV () based on sensor data of at least one sensor () of the ego vehicle ();'}{'b': 20', '5', '1, 'creating (S) map polygons, each of which determines edges of a road () in a map of the surroundings of the ego vehicle ();'}{'b': 30', '14, 'determining (S) visible areas in the map by intersecting the map polygons with the dynamic FoV (); and'}{'b': 40', '12', '5, 'determining (S) a visibility distance () for the road () based on the visible areas.'}214. The method according to claim 1 , wherein initializing the dynamic FoV () comprises the following steps:{'b': 11', '7', '3', '1, 'initializing (S) an ideal FoV () for each sensor () of the ego vehicle ();'}{'b': 12', '9', '3', '3', '9, 'determining (S) occlusions () for each sensor (), based on the sensor data of the respective sensor () and creating non-visible polygons based on the occlusions ();'}{'b': 13', '3', '7', '10, 'subtracting (S), for each sensor (), the respective non-visible polygons from the respective ideal FoV (), forming an altered FoV (); and'}{'b': 14', '10', '14, 'unifying (S) the altered FoVs () forming the dynamic FoV ().'}3121351351. The method according to claim 1 , wherein each said visibility distance () starts at a midpoint () of the road () claim 1 , which midpoint () is in a center of the road () and on a 0-longitudinal coordinates line ...
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