	US 12,039,789 B2
	System and method to detect proper seatbelt usage and distance
Caroline Chung, Southfield, MI (US); Frank Judge, Southfield, MI (US); Thomas Herbert, Southfield, MI (US); and Mitchell Pleune, Southfield, MI (US)
Assigned to MAGNA ELECTRONICS, LLC, Southfield, MI (US)
Filed by MAGNA ELECTRONICS, LLC, Southfield, MI (US)
Filed on Jun. 9, 2021, as Appl. No. 17/343,366.
Prior Publication US 2022/0398404 A1, Dec. 15, 2022
Int. Cl. G06V 20/59 (2022.01); B60R 22/48 (2006.01); G06T 7/50 (2017.01); G06T 7/73 (2017.01); G06V 10/28 (2022.01); G06V 10/30 (2022.01); G06V 10/44 (2022.01)

CPC G06V 20/59 (2022.01) [B60R 22/48 (2013.01); G06T 7/50 (2017.01); G06T 7/73 (2017.01); G06V 10/28 (2022.01); G06V 10/30 (2022.01); G06V 10/44 (2022.01); B60R 2022/4841 (2013.01); B60R 2022/485 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/30196 (2013.01); G06T 2207/30268 (2013.01)]

20 Claims

1. A method for detecting seatbelt positioning, comprising:

capturing, by a camera, a near infrared (NIR) image of an occupant;

determining, using the NIR image, an angle of the seatbelt;

converting the NIR image to a black-and-white image;

scanning across the black-and-white image to detect a detection point having a plurality of transitions between black and white segments corresponding to stripes extending lengthwise along a length of the seatbelt;

determining a measured width between two of the transitions of the detection point;

determining a compensated width based on the measured width and the angle of the seatbelt; and

determining, based on the compensated width and a known width of the seatbelt, a distance between the camera and the seatbelt at the detection point.