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:
Sep. 28, 2021
Filed:
Dec. 17, 2019
Robert Bosch Gmbh, Stuttgart, DE;
Yumi Kondo, San Jose, CA (US);
Ryan Burt, San Jose, CA (US);
Krishnan Bharath Navalpakkam, San Jose, CA (US);
Alexander Hirsch, Gross-Rohrheim, DE;
Naveen Ramakrishnan, Campbell, CA (US);
Filipe Goncalves, Braga, PT;
Stefan Weissert, Detroit, MI (US);
Jayanta Kumar Dutta, Sunnyvale, CA (US);
Ravi Kumar Satzoda, Sunnyvale, CA (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method and system are disclosed for monitoring passengers in within a cabin of a vehicle and determining whether the passengers are engaging in abnormal behavior. The method and system uses a novel vector to robustly and numerically represent the activity of the passengers in a respective frame, which is referred to herein as an 'activity vector.' Additionally, a Gaussian Mixture Model is utilized by the method and system to distinguish between normal and abnormal passenger behavior. Cluster components of the Gaussian Mixture Model are advantageously learned using an unsupervised approach in which training data is not labeled or annotated to indicate normal and abnormal passenger behavior. In this way, the Gaussian Mixture Model can be trained at a very low cost.