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:
Dec. 20, 2022
Filed:
Jan. 30, 2019
Baidu Usa Llc, Sunnyvale, CA (US);
Baidu.com Times Technology (Beijing) Co., Ltd., Beijing, CN;
Weixin Lu, Beijing, CN;
Yao Zhou, Beijing, CN;
Guowei Wan, Beijing, CN;
Shenhua Hou, Beijing, CN;
Shiyu Song, Sunnyvale, CA (US);
BAIDU USA LLC, Sunnyvale, CA (US);
BAIDU.COM TIMES TECHNOLOGY (BEIJING) CO. LTD., Beijing, CN;
Abstract
In one embodiment, a method for solution inference using neural networks in LiDAR localization includes constructing a cost volume in a solution space for a predicted pose of an autonomous driving vehicle (ADV), the cost volume including a number of sub volumes, each sub volume representing a matching cost between a keypoint from an online point cloud and a corresponding keypoint on a pre-built point cloud map. The method further includes regularizing the cost volume using convention neural networks (CNNs) to refine the matching costs; and inferring, from the regularized cost volume, an optimal offset of the predicted pose. The optimal offset can be used to determine a location of the ADV.