The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2018
Filed:
Dec. 03, 2014
Lenovo (Beijing) Co., Ltd., Beijing, CN;
Hao Shen, Beijing, CN;
LENOVO (BEIJING) CO., LTD., Haidian District, Beijing, CN;
Abstract
An information processing method and device are disclosed. The information processing method is applied to an information processing device in which a 3D map and a spatial topological structure management-based feature library created in advance for a certain environment are contained, and different users in the certain environment can determine their location. The method includes acquiring a first image taken by a first user; extracting one or more first feature points in the first image to obtain first feature descriptors; obtaining 3D locations of the first feature points based on 3D location of the first user, the first image, and the feature library; determining feature descriptors to be updated based on 3D location of the first user, the 3D locations of the first feature points, the first feature descriptors corresponding to the first feature points, and existing feature descriptors in the feature library; and updating the feature library.