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:
Dec. 17, 2024

Filed:

Dec. 01, 2021
Applicant:

Toyota Research Institute, Inc., Los Altos, CA (US);

Inventors:

Xin Huang, Cambridge, MA (US);

Igor Gilitschenski, Newton, MA (US);

Guy Rosman, Newton, MA (US);

Stephen G. McGill, Jr., Cambridge, MA (US);

John Joseph Leonard, Newton, MA (US);

Ashkan Mohammadzadeh Jasour, Cambridge, MA (US);

Brian C. Williams, Cambridge, MA (US);

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60W 60/00 (2020.01); G05D 1/00 (2024.01); G06N 3/08 (2023.01);
U.S. Cl.
CPC ...
B60W 60/0027 (2020.02); B60W 60/00256 (2020.02); G05D 1/0212 (2013.01); G06N 3/08 (2013.01); B60W 2555/60 (2020.02); B60W 2556/65 (2020.02);
Abstract

Systems and methods for predicting a trajectory of a moving object are disclosed herein. One embodiment downloads, to a robot, a probabilistic hybrid discrete-continuous automaton (PHA) model learned as a deep neural network; uses the deep neural network to infer a sequence of high-level discrete modes and a set of associated low-level samples, wherein the high-level discrete modes correspond to candidate maneuvers for the moving object and the low-level samples are candidate trajectories; uses the sequence of high-level discrete modes and the set of associated low-level samples, via a learned proposal distribution in the deep neural network, to adaptively sample the sequence of high-level discrete modes to produce a reduced set of low-level samples; applies a sample selection technique to the reduced set of low-level samples to select a predicted trajectory for the moving object; and controls operation of the robot based, at least in part, on the predicted trajectory.


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