公开(公告)号：US20230169680A1

公开(公告)日：2023-06-01

申请号：US18057954

申请日：2022-11-22

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

Inventor： Chenxu Zhao ,  Zhihao Wang

IPC: G06T7/73 ,  G06V20/62 ,  G06V30/10 ,  G01C21/00

CPC classification number: G06T7/73 ,  G06V20/63 ,  G06V30/10 ,  G01C21/3811 ,  G06T2207/30244

Abstract: A positioning method, a method for generating a visual map and an apparatus thereof includes: obtaining a current parking space number corresponding to a parking space image; obtaining a three-dimensional (3D) coordinate and a 3D pose of the current parking space number under a world coordinate system based on the current parking space number and a visual map, in which the visual map is generated based on current parking space numbers; obtaining a first conversion matrix from a camera coordinate system to a current parking space number coordinate system, in which the current parking space number coordinate system is generated based on the current parking space number; and determining a 3D coordinate and a 3D pose of a camera under the world coordinate system based on the first conversion matrix and the 3D coordinate and 3D pose of the current parking space number.

公开(公告)号：US11823335B2

公开(公告)日：2023-11-21

申请号：US17498204

申请日：2021-10-11

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

Inventor： Yuhua Dong ,  Ziwen Qin ,  Zhaohu Li ,  Zhaoliang Liu ,  Zhihao Wang ,  Haoxing Wang

IPC: G06T19/00 ,  G06T17/00 ,  G06V20/40 ,  G06Q50/14 ,  H04W4/021 ,  H04W4/02

CPC classification number: G06T19/006 ,  G06Q50/14 ,  G06T17/00 ,  G06V20/41 ,  H04W4/021 ,  H04W4/025

Abstract: Provided are a tour guiding method and apparatus, an electronic device and a storage medium. The method includes receiving a video stream collected by a user in a current location area of a target scenic spot and sent by an application device; determining, based on the collected video stream and prestored three-dimensional point cloud data of the target scenic spot, an augmented-reality-based content resource package corresponding to the current location area, where the augmented-reality-based content resource package includes at least six-degrees-of-freedom attitude data of the application device; and sending the augmented-reality-based content resource package corresponding to the current location area to the application device to enable the application device to provide the augmented-reality-based content resource package corresponding to the front location area for the user.