公开(公告)号：US12130860B2

公开(公告)日：2024-10-29

申请号：US17665793

申请日：2022-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Siliang Du ,  Zehui Kang ,  Wei Fang

IPC: G06T7/10 ,  G06F16/583 ,  G06T7/73 ,  G06T17/00 ,  G06V10/40 ,  G06V10/74 ,  G06V20/64

CPC classification number: G06F16/583 ,  G06T7/10 ,  G06T7/73 ,  G06T17/00 ,  G06V10/40 ,  G06V10/74 ,  G06V20/64 ,  G06T2207/10028

Abstract: This application provides a visual feature database construction method, including: obtaining a database creation image; performing feature extraction on the database creation image to obtain a feature point of the database creation image and a descriptor of the feature point of the database creation image; intersecting a ray corresponding to the feature point of the database creation image with a 3D model, to determine the 3D position of the intersection point at which the ray intersects with the 3D model as the 3D position of the feature point of the database creation image; and writing the descriptor of the feature point of the database creation image and the database creation image into a visual feature database, to construct the visual feature database.