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:
Apr. 30, 2019
Filed:
May. 11, 2017
Passion Mobility Ltd., Taipei, TW;
Chunghsin Lee, Las Vegas, NV (US);
Chunghsin Lee, Las Vegas, NV (US);
Passion Mobility Ltd., Taipei, TW;
Other;
Abstract
An indoor navigation method is provided and includes: providing a retro-reflective marker on an upper boundary; providing an autonomous vehicle capable having a light source and an image capturing device; emitting light toward the retro-reflective marker; capturing a target image frame including at least a part of the upper boundary and the retro-reflective marker lightened; capturing a background image frame including the part of the upper boundary and the retro-reflective marker not lightened; aligning the target image frame and the background image frame by a digital image processor; subtracting the target image frame and the background image frame for extracting a foreground image indicating the position of the retro-reflective marker; adjusting the autonomous vehicle to be aligned to the retro-reflective marker according to the foreground image by a central processor installed in the autonomous vehicle; and traveling the autonomous vehicle along the retro-reflective marker according to the foreground images.