US 12,435,991 B2
Method and apparatus for generating high-precision map, and storage medium
Jie Huang, Beijing (CN)
Assigned to BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Nov. 9, 2022, as Appl. No. 17/984,049.
Claims priority of application No. 202111334734.X (CN), filed on Nov. 11, 2021.
Prior Publication US 2023/0065126 A1, Mar. 2, 2023
Int. Cl. G01C 21/00 (2006.01); G06T 7/73 (2017.01); G06V 20/56 (2022.01)
CPC G01C 21/3815 (2020.08) [G06T 7/74 (2017.01); G06V 20/588 (2022.01); G06T 2207/10028 (2013.01); G06T 2207/20212 (2013.01); G06T 2207/30241 (2013.01); G06T 2207/30256 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for generating a high-precision map, comprising:
sampling road data, and obtaining a sampling trajectory, wherein the sampling trajectory comprises sampling location points and road data corresponding to the sampling location points;
obtaining a navigation map comprising first road elements; and
generating a target high-precision map by associating the first road elements of the navigation map with a high-precision map based on the sampling trajectory;
wherein generating the target high-precision map by associating the first road elements with the high-precision map based on the sampling trajectory comprises:
obtaining the first road elements on the navigation map corresponding to the sampling location points;
generating target road data by associating the first road elements with the road data corresponding to the sampling location points;
generating an initial high-precision map based on road data in the target road data, wherein the initial high-precision map comprises second road elements;
matching the second road elements with the first road elements comprised in the target road data in location; and
generating the target high-precision map by associating the first road elements matching with the second road elements with the location sampling points corresponding to the second road elements in the initial high-precision map.