US 12,260,617 B2
Object detection device, object detection method, program, and recording medium
Bumpei Toji, Hashima (JP)
Assigned to Konica Minolta, Inc., Tokyo (JP)
Appl. No. 17/605,473
Filed by Konica Minolta, Inc., Tokyo (JP)
PCT Filed Apr. 15, 2020, PCT No. PCT/JP2020/016570
§ 371(c)(1), (2) Date Oct. 21, 2021,
PCT Pub. No. WO2020/235269, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 2019-096592 (JP), filed on May 23, 2019.
Prior Publication US 2022/0207863 A1, Jun. 30, 2022
Int. Cl. G06K 9/66 (2006.01); G06V 10/25 (2022.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01)
CPC G06V 10/765 (2022.01) [G06V 10/25 (2022.01); G06V 10/82 (2022.01)] 19 Claims
OG exemplary drawing
 
1. An object detection device comprising:
an object position region detector that detects, from an input image, a position region of an object included in the image on the basis of a first class definition in which a plurality of classes is defined in advance;
a class identifier that identifies a first class out of the plurality of classes to which the object belongs on the basis of the first class definition; and
a hardware processor that outputs a detection result of the object on the basis of a detection result of the object position region detector and an identification result of the class identifier, wherein
the hardware processor
determines, based on the first class identified by the class identifier, a second class that is a superordinate class associated with the first class on the basis of a second class definition in which a plurality of classes is defined in advance, the second class definition associated with the first class definition, and
outputs class information of the object as the detection result of the object, the class information indicating the second class, and
the number of classes defined in the second class definition is smaller than the number of classes defined in the first class definition.