PUPIL ESTIMATION DEVICE AND PUPIL ESTIMATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technology to estimate a pupil center position efficiently.;SOLUTION: A pupil estimation device 12 includes a peripheral point detection unit, a position calculation unit, a first calculation unit, and a second calculation unit. The peripheral point detection unit detects a plurality of peripheral points indicating an outer edge of the eye from a captured image in S11. The position calculation unit calculates a reference position by using the plurality of peripheral points in S12. The first calculation unit calculates a difference vector indicating a difference between a pupil center position and the reference position by using a regression function for which the reference position and the brightness of a predetermined region of the captured image are used in S13-S18. The second calculation unit calculates the pupil center position by adding the difference vector calculated by the first calculation unit to the reference position in S19.;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2020,JPO&INPIT