公开(公告)号：US20230033053A1

公开(公告)日：2023-02-02

申请号：US17963533

申请日：2022-10-11

Applicant: PixArt Imaging Inc.

Inventor： FENG-CHI LIU ,  NIEN-TSE CHEN

IPC: G06V40/16 ,  G01J5/02 ,  A61B5/01 ,  A61B5/00 ,  G06V40/20 ,  G06V10/143 ,  G06V10/74 ,  G06K9/62 ,  G06F21/32 ,  G06V10/80 ,  G01J5/00

Abstract: There is provided a human falling detection system including an image sensor, a thermal sensor and a microphone. The image sensor captures an image frame that is used to identify a face and a height-width ratio of a human image. The thermal sensor is used as a filter for filtering out a living body and captures a thermal image that is used to identify a height-width ratio of a human thermal image. The microphone records a time stamp of an abrupt sound appearing.