公开(公告)号：US20220390249A1

公开(公告)日：2022-12-08

申请号：US17889252

申请日：2022-08-16

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Lingling LIU ,  Gaopeng MO ,  Wei Ma

IPC: G01C21/36 ,  G06N20/00

Abstract: A method and apparatus for generating a direction identifying model, a device, a medium, and a program product are provided. The method includes: acquiring direction-targeted road test data corresponding to a target road, and a guide arrow sign and an accessible road-direction corresponding to the target road; and training a machine learning model by using the road test data and the guide arrow sign as an input of the direction identifying model, and using the accessible road-direction as an output of the direction identifying model, to obtain the direction identifying model.

公开(公告)号：US20230019719A1

公开(公告)日：2023-01-19

申请号：US17954193

申请日：2022-09-27

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Gaopeng MO ,  Lingling LIU

IPC: G01C21/00

Abstract: A method for constructing a lane-level navigation map is provided. The method may include: determining a change position of a lane in a road-level electronic map; extracting lane information of the change position of the lane, the lane information including a lane connectivity relationship; and storing the lane information in the road-level electronic map to obtain the lane-level navigation map.