US 12,087,154 B2
Reading system, reading method, and storage medium
Tsubasa Kusaka, Yokohama (JP); and Chiayu Lin, Ota (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed on Oct. 23, 2020, as Appl. No. 17/078,336.
Application 17/078,336 is a continuation of application No. PCT/JP2019/011727, filed on Mar. 20, 2019.
Claims priority of application No. 2018-087716 (JP), filed on Apr. 27, 2018.
Prior Publication US 2021/0043072 A1, Feb. 11, 2021
Int. Cl. G01D 4/00 (2006.01); G06T 7/60 (2017.01); G06V 10/40 (2022.01); G08C 19/36 (2006.01); H04Q 9/00 (2006.01)
CPC G08C 19/36 (2013.01) [G06T 7/60 (2013.01); G06V 10/40 (2022.01); H04Q 9/00 (2013.01); G06V 2201/02 (2022.01); H04Q 2213/002 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A reading system, comprising:
a calculator calculating a total value of luminances in at least a portion of a second direction and fluctuation of the luminances in the at least a portion of the second direction at each of a plurality of points in a first direction for at least a portion of an image subjected to a polar transformation, a meter being imaged in the image, the meter including a pointer, a display panel, and a plurality of graduations, the pointer rotating around a rotation axis, the plurality of graduations being arranged along a circumferential direction around the rotation axis on the display panel, the polar transformation being referenced to a center of the meter, the first direction corresponding to the circumferential direction, the second direction corresponding to a diametrical direction from the center toward the graduations; and
a determiner using the total value and the fluctuation to determine a position at which the pointer exists.