US 12,131,552 B2
Imaging system, method for controlling imaging system, and object recognition system
Ayaka Hirata, Tokyo (JP); and Kei Nakagawa, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/593,355
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Mar. 17, 2020, PCT No. PCT/JP2020/011707
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2020/196092, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-059697 (JP), filed on Mar. 27, 2019.
Prior Publication US 2022/0172488 A1, Jun. 2, 2022
Int. Cl. G06V 20/58 (2022.01); G01W 1/10 (2006.01); G06V 10/28 (2022.01)
CPC G06V 20/58 (2022.01) [G01W 1/10 (2013.01); G06V 10/28 (2022.01)] 13 Claims
OG exemplary drawing
 
1. An imaging system, comprising:
an event detection device configured to detect an event, wherein
the event detection device includes an event detection unit configured to detect, as the event, a change in luminance of a pixel that photoelectrically converts incident light exceeding a detection threshold,
the event detection unit includes a current-voltage conversion unit configured to:
convert a photocurrent of the pixel into a voltage corresponding to the photocurrent; and
switch configuration between a circuit configuration in which transistors are cascade-connected and a circuit configuration in which the transistors are not cascade-connected, and
the imaging system is on a mobile unit; and
a controller configured to:
control, based on external information, detection sensitivity of the event detection performed by the event detection device; and
control, based on the external information, the detection threshold for the event detection unit, by the switch of the configuration of the current-voltage conversion unit, on a basis of external information.