US 11,995,876 B2
Test strip indicator determining system, terminal device, and method
Fumio Karasawa, Tokyo (JP)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/309,581
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 12, 2019, PCT No. PCT/IB2019/060722
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/121251, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 2018-234237 (JP), filed on Dec. 14, 2018.
Prior Publication US 2022/0027658 A1, Jan. 27, 2022
Int. Cl. G06V 10/22 (2022.01); G01N 21/77 (2006.01); G06V 10/56 (2022.01)
CPC G06V 10/225 (2022.01) [G01N 21/77 (2013.01); G06V 10/56 (2022.01); G01N 2021/7759 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A determining system for determining a status of an indicator that changes optical properties based on a specific environment, the determining system comprising:
an image acquiring part that acquires an image including an indicator;
a type information acquiring part that acquires information showing type of the indicator;
a color information acquiring part that acquires color information before and after change of the indicator that corresponds to the type;
an extracting part that extracts a first region of the image that contains the color after change of the indicator, based on the color information; and
a status determining part that determines status of the indicator based on a determining status that corresponds to the type and the shape of the first region that was extracted by the extracting part.