US 12,354,047 B2
Estimation device, estimation method, and estimation program
Jumpei Yamashita, Musashino (JP); Akira Kataoka, Musashino (JP); and Hidetaka Koya, Musashino (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 18/279,179
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed Mar. 5, 2021, PCT No. PCT/JP2021/008837
§ 371(c)(1), (2) Date Aug. 28, 2023,
PCT Pub. No. WO2022/185550, PCT Pub. Date Sep. 9, 2022.
Prior Publication US 2024/0135300 A1, Apr. 25, 2024
Int. Cl. G06Q 10/0639 (2023.01); G06T 7/254 (2017.01); G06T 7/62 (2017.01)
CPC G06Q 10/06398 (2013.01) [G06T 7/254 (2017.01); G06T 7/62 (2017.01); G06T 2207/30201 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An estimation device comprising:
processing circuitry configured to:
acquire time-series data of a pupil diameter during work of a subject of work performance estimation;
smooth the time-series data of the pupil diameter of the subject by a first time window;
smooth the time-series data of the pupil diameter by a second time window that is a time window larger than the first time window;
calculate a difference between time-series data of the pupil diameter smoothed by the first time window and time-series data of the pupil diameter smoothed by the second time window; and
estimate a level of work performance of the subject based on a magnitude of the difference between the time-series data of the pupil diameter smoothed by the first time window and the time-series data of the pupil diameter smoothed by the second time window, and output a result of the estimation.