公开(公告)号：US20210164797A1

公开(公告)日：2021-06-03

申请号：US17077419

申请日：2020-10-22

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Peng SUN ,  Changjie MA ,  Fangwei WANG ,  Yongle ZHANG

IPC: G01C21/36 ,  G06K9/00

Abstract: A method, for detecting a position change of a lane marker, includes: determining, based on a first measurement data of a distance between the lane marker and a reference marker on a road that is obtained from a first road data collected via a high-precision device at a first time point, a first set of changed regions between the lane marker and the reference marker in which the distance has changed; determining a second set of changed regions between the lane marker and the reference marker in which the distance has changed based on a second measurement data of the distance that is obtained from a second road data collected via a low-precision device at a second time point after the first time point; and detecting the position change of the lane marker between the first time point and the second time point.