G PHYSICS
G06 COMPUTING; CALCULATING OR COUNTING
G06V IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
G06V40/00 Recognition of biometric, human-related or animal-related patterns in image or video data
G06V40/10 Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
G06V40/12 Fingerprints or palmprints
G06V40/13 Sensors therefor
G06V40/1306 non-optical, e.g. ultrasonic or capacitive sensing