公开(公告)号：US20180350059A1

公开(公告)日：2018-12-06

申请号：US15994168

申请日：2018-05-31

申请人： Shuhei WATANABE ,  Takuroh SONE ,  Hideyuki KlHARA ,  Takayuki GOTOH ,  Takashi SOMA ,  Akihiro IWAMATSU

发明人： Shuhei WATANABE ,  Takuroh SONE ,  Hideyuki KlHARA ,  Takayuki GOTOH ,  Takashi SOMA ,  Akihiro IWAMATSU

IPC分类号： G06T7/00 ,  G06T7/13 ,  G06T7/136 ,  G06K9/46 ,  H04N5/33

CPC分类号： G01N21/8422 ,  G01N21/57 ,  G01N2021/8829

摘要： An evaluation device includes a projector to project a pattern having an edge component onto an object, an imaging device to capture an image of the object, a reflective-property correction unit to correct an amount of change in shape of a virtual image of the pattern reflected in the object, using reflective-property data of a surface of the object, and an evaluation-value calculator to evaluate image clarity of the surface of the object based on the corrected amount of change. A computer-readable non-transitory recording medium storing a program for causing a computer to execute a method. The method includes correcting an amount of change in shape of a virtual image of the pattern reflected in the object based on image data that is obtained by capturing an object onto which a pattern having an edge component is projected, using reflective-property data of a surface of the object.

公开(公告)号：US20180259394A1

公开(公告)日：2018-09-13

申请号：US15911197

申请日：2018-03-05

申请人： Takayuki GOTOH ,  Takuroh SONE ,  Akihiro IWAMATSU ,  Hideyuki KlHARA ,  Takashi SOMA ,  Shuhei WATANABE

发明人： Takayuki GOTOH ,  Takuroh SONE ,  Akihiro IWAMATSU ,  Hideyuki KlHARA ,  Takashi SOMA ,  Shuhei WATANABE

IPC分类号： G01J3/50 ,  G01J3/06 ,  G01J3/02

CPC分类号： G01J3/50 ,  G01J3/021 ,  G01J3/0297 ,  G01J3/06 ,  G01J3/28 ,  G01J3/465 ,  G01J3/504 ,  G01J2003/467

摘要： A color measurement apparatus includes at least one illuminator, an imager, and circuitry. The circuitry is configured to normalize each pixel included in an imaging region of one of the spectral reflectance images of the measurement target irradiated with light at a specific illumination angle of the plurality of illumination angles, with one of the spectral reflectance images of the reference object irradiated with light at the specific illumination angle, for each of the plurality of illumination angles so as to generate normalized spectral reflectance images of the measurement target. The circuitry further calculates a numerical value of at least one color for each pixel of the normalized spectral reflectance images of the measurement target, for respective ones of the plurality of illumination angles, to measure color of the surface of the measurement target.

公开(公告)号：US20170270655A1

公开(公告)日：2017-09-21

申请号：US15459178

申请日：2017-03-15

申请人： Shuhei WATANABE ,  Takuroh SONE ,  Hideyuki KlHARA ,  Takashi SOMA ,  Akihiro IWAMATSU ,  Naoki NAKAMURA ,  Takayuki GOTOH

发明人： Shuhei WATANABE ,  Takuroh SONE ,  Hideyuki KlHARA ,  Takashi SOMA ,  Akihiro IWAMATSU ,  Naoki NAKAMURA ,  Takayuki GOTOH

IPC分类号： G06T7/00 ,  H04N7/18 ,  H04N9/31

摘要： A texture evaluation apparatus includes a projector, an imager, and an evaluator. The projector is configured to project a two-dimensional pattern having an edge element onto an object. The imager is configured to capture an image of a surface of the object. The evaluator is configured to calculate an amount of shape change of a virtual image of the two-dimensional pattern in the image, and evaluate texture of the object based on the amount of shape change and sensory evaluation information obtained in advance.

公开(公告)号：US20220262019A1

公开(公告)日：2022-08-18

申请号：US17624853

申请日：2020-07-29

申请人： Shuhei WATANABE ,  Takayuki GOTOH ,  Takuroh SONE

发明人： Shuhei WATANABE ,  Takayuki GOTOH ,  Takuroh SONE

IPC分类号： G06T7/40 ,  G06T7/00 ,  G06T7/90 ,  H04N5/235 ,  H04N5/225 ,  G01J3/50 ,  G01N21/55

摘要： 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.