NAIL INFORMATION DETECTION DEVICE, DRAWING APPARATUS, AND NAIL INFORMATION DETECTION METHOD

摘要

A nail information detection device includes: a placement surface on which a finger having a nail is placed; an imaging unit which images the nail from one direction and acquires a image data; a moving unit which moves the imaging unit while keeping a distance between a measurement plane which is in contact with a peak position of the nail and parallel to the placement surface and the imaging unit constant; and a control unit configured to detect nail information including a first edge position and a second edge position on a shape of the nail.;The control unit aligns a reference point of an imaging range of the imaging unit at the peak position and detects a position on the measurement plane of the nail edge based on the image data as the first edge position; and aligns the reference point at the first edge position and detects a position on the measurement plane of the nail edge based on the image data as the second edge position.

主权项

1. A nail information detection device comprising:
a placement surface on which a finger or a toe having a nail is placed, the nail having a nail edge at one end in a width direction of the nail; an imaging unit which images the nail from one direction and acquires image data of an image of the nail; a moving unit which moves the imaging unit relative to the nail while keeping an imaging distance in the one direction constant, the imaging distance being a distance between the imaging unit and a measurement plane, the measurement plane being in contact with a peak position of the nail in the width direction and being parallel to the planar direction of the placement surface; and a control unit which controls the moving unit and the imaging unit to detect nail information including a first edge position and a second edge position on a shape of the nail, wherein the control unit performs: a first edge detection process in which the moving unit positions the imaging unit to a first position so that a reference point of an imaging range of the imaging unit in the width direction is aligned at the peak position, and the control unit detects a position on the measurement plane of the nail edge as the first edge position based on the image data acquired by the imaging unit being at the first position; and a second edge detection process of performing (1) a first process in which the moving unit positions the imaging unit to a second position so that the reference point is aligned at the first edge position, and the control unit detects a position on the measurement plane of the nail edge as the second edge position based on the image data acquired by the imaging unit being at the second position or (2) a second process in which the moving unit positions the imaging unit to a second position so that the reference point is aligned at a position of the nail edge based on the image data acquired by the imaging unit, and the control unit detects the second position as the second edge position.