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. 02, 2025
Filed:
May. 26, 2023
Toyota Research Institute, Inc., Los Altos, CA (US);
Colton Stearns, Stanford, CA (US);
Jie Li, Los Altos, CA (US);
Rares A. Ambrus, San Francisco, CA (US);
Vitor Campagnolo Guizilini, Santa Clara, CA (US);
Sergey Zakharov, San Francisco, CA (US);
Adrien D. Gaidon, San Jose, CA (US);
Davis Rempe, Stanford, CA (US);
Tolga Birdal, London, GB;
Leonidas J. Guibas, Palo Alto, CA (US);
Toyota Research Institute, Inc., Los Altos, CA (US);
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
A method for multiple object tracking includes receiving, with a computing device, a point cloud dataset, detecting one or more objects in the point cloud dataset, each of the detected one or more objects defined by points of the point cloud dataset and a bounding box, querying one or more historical tracklets for historical tracklet states corresponding to each of the one or more detected objects, implementing a 4D encoding backbone comprising two branches: a first branch configured to compute per-point features for each of the one or more objects and the corresponding historical tracklet states, and a second branch configured to obtain 4D point features, concatenating the per-point features and the 4D point features, and predicting, with a decoder receiving the concatenated per-point features, current tracklet states for each of the one or more objects.