G PHYSICS
G06 COMPUTING OR CALCULATING; COUNTING
G06V IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
G06V20/00 Scenes; Scene-specific elements
G06V20/50 Context or environment of the image
G06V20/59 inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
G06V20/593 Recognising seat occupancy