Title:
NAIL SIZE ESTIMATION DEVICE
Document Type and Number:
Japanese Patent JP2022116375
Kind Code:
A
Abstract:
To provide a nail size estimation device which determines a nail chip matching the nail of a hand of a subject.SOLUTION: A nail size estimation device comprises: hand contour extraction means which extracts a contour image of a hand from a two-color image obtained by converting a photographed plane image of the hand of a subject into the two-color image; finger position specification means which specifies and sets position coordinates of each finger from the contour image of the hand and sets the position coordinates at which a distance from the position coordinates of the gravity center of the hand becomes the maximum among the set position coordinates of each finger as each finger candidate; nail contour extraction means which obtains the two-color image by converting the photographed plane image of the hand of the subject into the two-color image with a color value of a threshold set with a color histogram of a nail as a reference, extracts a contour image of each nail from the two-color image, calculates the position coordinates of the gravity center of each nail from the contour image of the nail and sets a finger candidate in which the distance to the position coordinates of each finger candidate becomes the minimum as the contour image of each corresponding nail; and nail size estimation means which estimates a nail size of the subject from the pixel number of the contour image of each nail set by the nail contour extraction means.SELECTED DRAWING: Figure 1
Inventors:
OGAWA SATOKI
AZUMA SHINYA
YUKI KENTA
SHIMOTAKI ARI
AZUMA SHINYA
YUKI KENTA
SHIMOTAKI ARI
Application Number:
JP2019111676A
Publication Date:
August 10, 2022
Filing Date:
June 17, 2019
Export Citation:
Assignee:
JEWNEL CO LTD
International Classes:
A45D44/00; A45D31/00
Attorney, Agent or Firm:
Nobuyuki Yamaguchi