US 12,304,413 B2
Door opening/closing determination device and door opening/closing determination method
Kentaro Oya, Toyota (JP); and Takahiro Izuno, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Dec. 8, 2022, as Appl. No. 18/077,806.
Claims priority of application No. 2021-201457 (JP), filed on Dec. 13, 2021.
Prior Publication US 2023/0182671 A1, Jun. 15, 2023
Int. Cl. G06K 9/00 (2022.01); B60R 21/015 (2006.01); E05F 15/43 (2015.01)
CPC B60R 21/01538 (2014.10) [E05F 15/43 (2015.01); B60R 2300/8006 (2013.01); E05F 2015/434 (2015.01); E05Y 2900/506 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A door opening/closing determination device, comprising:
imaging equipment having an imaging range which includes doors of a vehicle and a vicinity of the doors in a vehicle cabin, and
an electronic control unit configured to:
analyze a captured image taken by the imaging equipment,
calculate a gravity center position of an occupant included in the captured image,
determine whether the gravity center position is included in a keep out area provided in the vicinity of the doors,
perform posture estimation to estimate a relative position of each body part of the occupant included in the captured image,
determine the gravity center position on an image plane on the basis of a total sum of values which are obtained by multiplying a distance ranging from an original point to each of the respective parts on the image plane of the captured image by a weight ratio for each of the parts,
acquire the occupant's height information included in the captured image, and
increase the weight ratio of the occupant's head part when the occupant's height is low; and
an alarm device provided to issue an alarm in the cabin when it is determined that the gravity center position is included in the keep out area.