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:
Oct. 22, 2024

Filed:

May. 30, 2024
Applicant:

Nodar Inc., Somerville, MA (US);

Inventors:

Vikram Shree, Cambridge, MA (US);

Leaf Alden Jiang, Concord, MA (US);

Piotr Swierczynski, Berlin, DE;

Assignee:

NODAR Inc., Somerville, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/20 (2017.01); G06T 5/70 (2024.01); G06T 17/00 (2006.01); G06V 20/56 (2022.01);
U.S. Cl.
CPC ...
G06T 7/20 (2013.01); G06T 5/70 (2024.01); G06T 17/00 (2013.01); G06V 20/56 (2022.01); G06V 2201/07 (2022.01);
Abstract

A method of detecting and tracking objects includes (a) obtaining point-cloud data captured by camera sensors on a vehicle travelling along a road surface, (b) compressing the point-cloud data to bird's-eye-view (BEV) data representing a view along a BEV direction oriented approximately perpendicular to the road surface, the BEV data representing the objects on a BEV plane oriented approximately parallel the road surface, (c) establishing a grid of cells for the BEV plane, (d) for each cell, determining occupancy values of the cell for a time tand performing noise reduction by assigning weights to the cell based on predicted occupancy values of the cell for the time tand on occupancy values of the cell for a previous time t, and (e) outputting to a controller of the vehicle, in real time or nearly real time, an occupancy evidence map of objects in the vehicle's environment.


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