公开(公告)号：US12112555B1

公开(公告)日：2024-10-08

申请号：US18634353

申请日：2024-04-12

Applicant: Samsara Inc.

Inventor： Sung Chun Lee ,  Nathan Hurst ,  Yan Wang ,  Olamide Akintewe ,  Justin Levine ,  Kenshiro Nakagawa ,  Cole Jurden ,  Rachel Demerly ,  Aravindh Ramesh ,  Kevin Lai ,  Jovanna Bubar ,  Shirish Nair ,  Maisie Wang

IPC: G06V20/59 ,  G06V10/774 ,  G06V40/16

CPC classification number: G06V20/597 ,  G06V10/774 ,  G06V40/161 ,  G06V40/168 ,  G06V40/174

Abstract: Techniques are presented for detecting when drivers drive while drowsy. In some implementations, a drowsiness model is trained with data associated with inward videos and outward videos captured during a trip. The inward videos capture the inside of the cabin with the driver, and the outward videos capture the view in front of the vehicle in the direction of travel. Further, a device at the vehicle periodically calculates a drowsiness scale index value that indicates the level of drowsiness of the driver. Calculating the drowsiness scale index value includes obtaining a set of inward frames from the inward videos; for each inward frame, creating a face image by cropping the inward frame; obtaining a set of outward frames from the outward videos; calculating inward embeddings of the face images and outward embeddings of the outward frames; and calculating, by the drowsiness model, the drowsiness scale index value.