公开(公告)号：US20230175859A1

公开(公告)日：2023-06-08

申请号：US18063705

申请日：2022-12-09

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

Inventor： Qiuyang Xu ,  Tingting Cao ,  Zhen Lu

IPC: G01C21/00 ,  G06V20/10

CPC classification number: G01C21/3815 ,  G06V20/182 ,  G01C21/3837

Abstract: A method for discovering a newly added road, includes: determining trajectory data in a target area within a preset time period, in which the trajectory data includes a plurality of trajectories and attribute information of each trajectory point in respective trajectories; determining trajectory features of a plurality of grids in the target area, according to the plurality of trajectories, the attribute information of each trajectory point in respective trajectories, and position features of the plurality of grids; generating current grid portrait data of the target area, according to the position features and trajectory features of the plurality of grids; and determining newly added road information of the target area, according to the current grid portrait data and historical grid portrait data of the target area.