公开(公告)号：US11574414B2

公开(公告)日：2023-02-07

申请号：US17021190

申请日：2020-09-15

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

Inventor： Sili Chen ,  Zhaoliang Liu

IPC: G06T7/70 ,  G06T7/12 ,  G06T7/246 ,  G06T7/13

Abstract: The present disclosure discloses an edge-based three-dimensional tracking and registration method and apparatus for augmented reality, and a storage medium. The method includes: obtaining an initial pose of a three-dimensional object in an image; extracting edgelet features of a contour of the three-dimensional object based on the initial pose; dividing the edgelet features into groups, and performing searching on the image to find a matching point corresponding to respective edgelet feature in each group; and calculating a pose of the three-dimensional object based on matching points found in the groups.

公开(公告)号：US20210374977A1

公开(公告)日：2021-12-02

申请号：US17118901

申请日：2020-12-11

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

Inventor： Sili Chen ,  Zhaoliang Liu

IPC: G06T7/33 ,  G06T7/55 ,  G06T15/10 ,  G01C21/20

Abstract: The disclosure provides a method for indoor localization, a related electronic device and a related storage medium. A first image position of a target feature point of a target object is obtained and an identifier of the target feature point is obtained based on a first indoor image. A 3D spatial position of the target feature point is obtained through retrieval based on the identifier of the target feature point. The 3D spatial position is pre-determined based on a second image position of the target feature point on a second indoor image, a posture of a camera for capturing the second indoor image, and a posture of the target object on the second indoor image. An indoor position of the user is determined based on the first image position of the target feature point and the 3D spatial position of the target feature point.