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.

Date of Patent:
Jul. 26, 2022

Filed:

Sep. 07, 2017
Applicant:

Nanyang Technological University, Singapore, SG;

Inventors:

Lihua Xie, Singapore, SG;

Chen Wang, Singapore, SG;

Junsong Yuan, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/32 (2006.01); G06T 7/20 (2017.01); G05D 1/02 (2020.01); G06T 15/00 (2011.01); G01C 21/16 (2006.01);
U.S. Cl.
CPC ...
G01C 21/32 (2013.01); G01C 21/165 (2013.01); G05D 1/024 (2013.01); G05D 1/027 (2013.01); G05D 1/0274 (2013.01); G06T 7/20 (2013.01); G06T 15/00 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/10032 (2013.01);
Abstract

A simultaneous localization and mapping method and corresponding system are disclosed. The method comprises: receiving a frame of three dimensional point cloud data from a three dimensional point cloud sensor coupled to a robot; receiving inertial measurement data indicative of a change in pose of the three dimensional point cloud sensor; using the inertial measurement data to estimate a rotation between the received frame of three dimensional point cloud data and a key frame of three dimensional point cloud data; applying a rotation to the received frame of three dimensional point cloud data to obtain an aligned frame of three dimensional point cloud data, the aligned frame of three dimensional point cloud data having an orientation aligned with the key frame of three dimensional point cloud data; and estimating a translation of the aligned frame of three dimensional point cloud data from the key frame of three dimensional point cloud data.


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