公开(公告)号：US11954922B2

公开(公告)日：2024-04-09

申请号：US17715744

申请日：2022-04-07

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Rundo ,  Giancarlo Asnaghi ,  Sabrina Conoci

IPC: G06V20/59 ,  G06V10/77 ,  G06V10/82 ,  G06V40/16

CPC classification number: G06V20/597 ,  G06V10/7715 ,  G06V10/82 ,  G06V40/168

Abstract: A time series of face images of a human during a human activity are captured. A first artificial neural network (ANN) processing pipeline processes the captured time series of face images to provide a first attention level indicator signal. An electrophysiological signal indicative of the level of attention of the human during the activity is also captured. A second ANN processing pipeline processes the sensed electrophysiological signal to providing a second attention level indicator signal. A risk indicator signal is then generated based on at least one of the first attention level indicator and second attention level indicator. A user circuit is then triggered as a result of the risk indicator reaching or failing to reach at least one attention level threshold.