Video-based drowsy driving detection on an edge device

A computer-implemented method for drowsy driving detection, the method comprising:

• receiving, by at least one processor of a computing device in a vehicle, a first image at a first resolution from a camera in the vehicle;
• processing, by the at least one processor, the first image to output a first facial image based on a predetermined position of a head of a driver of the vehicle in a field of view of the camera;
• storing, by the at least one processor, the first facial image in a first buffer of a memory of the device;
• selecting, by the at least one processor, a group of facial images from the first buffer, the group of facial images comprising the first facial image, wherein the group of facial images constitute a video of sequential facial images;
• determining, by the at least one processor, a drowsy confidence score based on the video;
• and
• generating, by the at least one processor, an alert if the drowsy confidence score is greater than a first threshold.