SURFACE CHARACTERISTICS EVALUATION METHOD, SURFACE CHARACTERISTICS EVALUATION APPARATUS, AND SURFACE CHARACTERISTICS EVALUATION PROGRAM

WIPO Patent Application WO/2021/020482

A1

A surface characteristics evaluation method for evaluating a surface characteristic of a painted surface including a glittering material, including: a multi-angle condition image acquisition step S101 for acquiring a multi-angle condition image including multi-angle conditions in a continuous manner by performing an image-capturing process to capture how a reflection condition of the painted surface changes when rotating an illumination device 2 emitting light onto the painted surface, the image-capturing process being performed by the line scan camera 4 while a sample P having the painted surface is moved in a certain direction; an in-plane chromaticity distribution acquisition step S102 for acquiring an in-plane chromaticity distribution of the painted surface from the multi-angle condition image acquired; and a surface characteristics evaluation step S107 for calculating particle characteristics S as surface characteristics evaluation values of the multi-angle conditions, on the basis of the in-plane chromaticity distribution acquired.

WATANABE SHUHEI (JP)
GOTOH TAKAYUKI (JP)
SONE TAKUROH (JP)

PCT/JP2020/029165

February 04, 2021

July 29, 2020

Click for automatic bibliography generation  

RICOH CO LTD (JP)
WATANABE SHUHEI (JP)
GOTOH TAKAYUKI (JP)
SONE TAKUROH (JP)

G01J3/46; G01N21/57; G01N21/88; G06T7/90

US20040174518A1	2004-09-09
JP2018009988A	2018-01-18
US20170010158A1	2017-01-12
JP5475057B2	2014-04-16
JP2019140260A	2019-08-22

ITOH, Tadashige et al. (JP)

View/Download PDF      PDF Help

Previous Patent: METHOD FOR PRODUCING INTERMEDIATE OF IGURATIMOD DERIVATIVES, METHOD FOR PRODUCING IGURATIMOD, IGURAT...

Next Patent: AIR MATTRESS