US 12,380,803 B2
Stop detection device and stop detection method
Kenki Ueda, Toyota (JP); Ryosuke Tachibana, Toyota (JP); Shinichiro Kawabata, Toyota (JP); Takashi Kitagawa, Toyota (JP); Takanori Kato, Tokyo (JP); Hidetoshi Nitta, Tokyo (JP); Kohei Harayama, Tokyo (JP); and Mizuki Mori, Tokyo (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Dec. 7, 2022, as Appl. No. 18/062,662.
Claims priority of application No. 2021-205924 (JP), filed on Dec. 20, 2021.
Prior Publication US 2023/0196914 A1, Jun. 22, 2023
Int. Cl. G08G 1/052 (2006.01); G06T 7/246 (2017.01); G06V 10/22 (2022.01); G06V 20/56 (2022.01); G08G 1/04 (2006.01)
CPC G08G 1/052 (2013.01) [G06T 7/248 (2017.01); G06V 10/22 (2022.01); G06V 20/588 (2022.01); G08G 1/04 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/30256 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A stop detection device, comprising:
an acquirer that acquires a plurality of captured images captured in chronological order by a camera mounted on a vehicle;
an image processor that performs image processing on an acquired plurality of captured images; and
a detector that detects vehicle speed of the vehicle at a stop position based on a result of image processing,
the image processor comprising:
a stop position identification unit that identifies a stop position based on a marking indicating a stop position detected from a captured image; and
a vehicle speed calculation unit that calculates vehicle speed by comparing captured images in chronological order, wherein
the vehicle speed calculation unit excludes a specific region from each of a plurality of captured images to compare captured images;
wherein the vehicle speed calculation unit sets the specific region to a predetermined center region positioned in the center of a captured image.