CPC G01S 17/931 (2020.01) [G06T 7/11 (2017.01); G06V 10/803 (2022.01); G06V 20/582 (2022.01); G06V 20/588 (2022.01); G01S 7/4802 (2013.01); G01S 17/89 (2013.01); G06F 18/251 (2023.01); G06T 2207/10028 (2013.01); G06T 2207/20112 (2013.01); G06T 2207/30252 (2013.01); G06V 2201/12 (2022.01)] | 20 Claims |
1. A method for sign detection comprising:
receiving point cloud data associated with multiple locations in a geographic region as a vehicle travels along a path;
calculating a sign position candidate for the point cloud data;
receiving image data associated with the geographic region;
calculating a sighting frustum from the image data;
performing a comparison of the sighting frustum to the sign position candidate to identify a plurality of association sets;
removing one or more association sets so as to select an accurate association set; and
storing a sign location in a geographic database in response to the selected accurate association set comparison.
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