COLOR LENS DETERMINATION METHOD, COLOR LENS DETERMINATION DEVICE, AND PROGRAM

WIPO Patent Application WO/2023/119983

A1

[Problem] To require no skill and experience relating to capturing an image of an iris. [Solution] This color lens determination method may comprise calculating an RGB representative value of a first region corresponding to a reference color disposed in a color chart in an image of a region including the color chart and an eye of a user, the image being captured by an image input device while a jig is disposed near the eye. The method may comprise calculating an RGB representative value of a second region corresponding to an iris of the eye in the image. The method may comprise calculating a transformation matrix that minimizes an error between the RGB representative value of the first region and an actual measured value of the reference color previously measured under a specific condition. The method may comprise color-correcting the RGB representative value of the second region using the transformation matrix. The method may comprise converting a corrected value obtained by color-correcting the RGB representative value of the second region into a device-independent color. The method may comprise determining a color lens suitable for the user on the basis of the color of the iris converted into the device-independent color.

MONMA TSUKASA (JP)

PCT/JP2022/042867

June 29, 2023

November 18, 2022

Click for automatic bibliography generation  

NIKON ESSILOR CO LTD (JP)

G02C13/00; G06T7/00; G06T7/90

JP2004513389A	2004-04-30
JP2021121880A	2021-08-26
JPH09233494A	1997-09-05
JP2003141518A	2003-05-16
JP2019107071A	2019-07-04

NISHI, Kazuya (JP)

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