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:
May. 11, 2021
Filed:
Jan. 22, 2019
Velodyne Lidar Usa, Inc., San Jose, CA (US);
Nikhil Naikal, San Francisco, CA (US);
Alonso Patron-Perez, Elkins Park, PA (US);
Alexander Marques, San Francisco, CA (US);
John Kua, San Francisco, CA (US);
Aaron Matthew Bestick, San Francisco, CA (US);
Christopher D. Thompson, Alexandria, VA (US);
Andrei Claudiu Cosma, Emeryville, CA (US);
VELODYNE LIDAR USA, INC., San Jose, CA (US);
Abstract
Motion and video data from vehicle sensors and camera arrays attached to a vehicle collect video and sensor data along a path driven by the vehicle. A system processes such data to produce high-accuracy structured map data, as might be used to precisely locate a moving vehicle in its environment. Positions are calculated from the sensor data. The positions are updated based on the video data. When loops in the vehicle path are detected, a loop closure error is calculated and used to update the positions as well as to reduce bias in the sensors when calculating future positions. Positions of features in the video are used to create or update structured map data.