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:
Jan. 30, 2018
Filed:
Feb. 24, 2016
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Taiki Iimura, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A self-localization device including a storage unit that associates and stores a plurality of reference images and imaging positions of the plurality of respective reference images and an operation unit that periodically estimates a self-location of a movable body based on information obtained from a sensor included in the movable body, wherein the operation unit determines, when estimation of the self-location fails, a moving distance from a latest self-location obtained from successful estimation of the self-location before the estimation fails using the information from the sensor and extracts a plurality of the reference images belonging to a range of the moving distance from the latest self-location and searches the plurality of extracted reference images for images similar to a current image captured by an imaging device included in the movable body to estimate the self-location of the movable body.