公开(公告)号：US09984307B2

公开(公告)日：2018-05-29

申请号：US14900170

申请日：2015-01-14

Applicant: PAPALAB CO., LTD.

Inventor： Makoto Kato

IPC: G06K9/46 ,  G01J3/46 ,  G06K9/62 ,  G06T7/90 ,  G06T7/00 ,  H04N5/232 ,  H04N5/225 ,  G01J3/50 ,  G01J3/02 ,  G01J3/28

CPC classification number: G06K9/4642 ,  G01J3/0202 ,  G01J3/10 ,  G01J3/462 ,  G01J3/465 ,  G01J3/50 ,  G01J3/504 ,  G01J3/51 ,  G01J2003/2813 ,  G06K9/4652 ,  G06K9/6201 ,  G06K9/6212 ,  G06T7/001 ,  G06T7/90 ,  G06T2207/10024 ,  H04N5/2251 ,  H04N5/2256 ,  H04N5/23229

Abstract: An object is to ensure clear and easy quantification of the textures such as metallic texture and shiny texture of pearl pigment and to rationalize comparison inspection between an inspection object and a reference object. A coloring inspection apparatus 1 includes a camera 2 that is configured to have three spectral sensitivities (S1(λ), S2(λ), S3(λ)) linearly and equivalently converted to a CIE XYZ color matching function, an arithmetic processing unit 3 that is configured to obtain and compute coloring data by conversion of an image which has three spectral sensitivities and is obtained by the camera 2 into tristimulus values X, Y and Z in a CIE XYZ color system, and lighting units 6 that are configured to illuminate an automobile 5 as an example of measuring object. The coloring inspection apparatus 1 computes a color distribution consistency index that represents a ratio of overlap of two xyz chromaticity histogram distributions of an inspection object Q and a reference object R, so as to inspect color.

公开(公告)号：US20160140734A1

公开(公告)日：2016-05-19

申请号：US14900170

申请日：2015-01-14

Applicant: PAPALAB CO., LTD.

Inventor： Makoto KATO

IPC: G06T7/40 ,  G06K9/62 ,  H04N5/225 ,  G06T7/00 ,  H04N9/64 ,  G06K9/46

CPC classification number: G06K9/4642 ,  G01J3/0202 ,  G01J3/10 ,  G01J3/462 ,  G01J3/465 ,  G01J3/50 ,  G01J3/504 ,  G01J3/51 ,  G01J2003/2813 ,  G06K9/4652 ,  G06K9/6201 ,  G06K9/6212 ,  G06T7/001 ,  G06T7/90 ,  G06T2207/10024 ,  H04N5/2251 ,  H04N5/2256 ,  H04N5/23229

Abstract: An object is to ensure clear and easy quantification of the textures such as metallic texture and shiny texture of pearl pigment and to rationalize comparison inspection between an inspection object and a reference object. A coloring inspection apparatus 1 includes a camera 2 that is configured to have three spectral sensitivities (S1(λ), S2(λ), S3(λ)) linearly and equivalently converted to a CIE XYZ color matching function, an arithmetic processing unit 3 that is configured to obtain and compute coloring data by conversion of an image which has three spectral sensitivities and is obtained by the camera 2 into tristimulus values X, Y and Z in a CIE XYZ color system, and lighting units 6 that are configured to illuminate an automobile 5 as an example of measuring object. The coloring inspection apparatus 1 computes a color distribution consistency index that represents a ratio of overlap of two xyz chromaticity histogram distributions of an inspection object Q and a reference object R, so as to inspect color.

Abstract translation: 目的是确保清晰简便地对纹理进行量化，例如金属质感和珠光颜料的光泽质感，并使检验对象与参照物之间的比较检验合理化。 着色检查装置1包括被配置为具有三个光谱灵敏度（S1（λ），S2（λ），S3（λ））的照相机2，其被线性地等效转换为CIE XYZ色彩匹配功能，运算处理单元3 被配置为通过将具有三个光谱灵敏度并且由相机2获得的图像转换成CIE XYZ颜色系统中的三刺激值X，Y和Z来获得和计算着色数据，以及被配置为照亮 作为测量对象的示例的汽车5。 着色检查装置1计算表示检查对象Q的两个xyz色度直方图分布与参照对象R的重叠率的颜色分布一致性指标，以检查颜色。

公开(公告)号：US20160127706A1

公开(公告)日：2016-05-05

申请号：US14894383

申请日：2015-03-19

Applicant: PAPALAB CO., LTD.

Inventor： Makoto KATO

IPC: H04N9/64 ,  H04N9/73 ,  H04N9/04

CPC classification number: H04N9/646 ,  G01J3/2823 ,  G06T11/001 ,  H04N1/60 ,  H04N1/6086 ,  H04N1/622 ,  H04N9/04 ,  H04N9/643 ,  H04N9/73 ,  H04N9/735 ,  H04N9/74

Abstract: An object is to accurately provide the user with color fidelity information irrespective of difference in the time of day when or in the location where a commercial product is photographed and prevent mismatching of the user's selection of the commercial product. A color fidelity environment correction system 1 includes a camera 2 and a computer 5 that is connectable with the camera 2, a tablet terminal 3 and a display device 4 and is configured to include a CPU, a ROM, a RAM, a hard disk drive and a bus line. A red vehicle 6 is photographed with the camera 2 (RC-500) in a plant or the like, and XYZ color fidelity images are recorded in a storage unit 51 of the computer 5. Another blue vehicle 7 is photographed with the tablet terminal 3 in the open air, and an RGB color image is stored in a storage unit 52. An RGB color image of the red color vehicle is created with replacement of the blue color of the RGB color image of the vehicle 7 with red color of the 3-band visual sensitivity images S1i, S2i and S3i of the vehicle 6 and is displayed on the display device 4 or is displayed with the RGB color image of the blue vehicle 7 in a comparative manner.

Abstract translation: 目的是为了向用户准确地提供颜色保真度信息，而不管在商业产品被拍摄的位置处或在哪里的时间的差异，并且防止用户对商品的选择不匹配。 彩色保真环境校正系统1包括可与相机2，平板电脑终端3和显示装置4连接的照相机2和计算机5，并且被配置为包括CPU，ROM，RAM，硬盘驱动器 和一条公交线路。 在植物等中用相机2（RC-500）拍摄红色车辆6，并且将XYZ彩色保真度图像记录在计算机5的存储单元51中。另外一个蓝色车辆7用平板电脑终端3拍摄 并且将RGB彩色图像存储在存储单元52中。通过用3的红色替换车辆7的RGB彩色图像的蓝色来创建红色车辆的RGB彩色图像 带状视觉敏感度图像S1i，S2i和S3i，并且以比较的方式显示在显示装置4上或与蓝色车辆7的RGB彩色图像一起显示。

公开(公告)号：US10345100B1

公开(公告)日：2019-07-09

申请号：US15854829

申请日：2017-12-27

Applicant: PaPaLaB Co., Ltd.

Inventor： Makoto Kato

IPC: G01B11/30 ,  G06K9/62 ,  G06K9/46 ,  G01J3/46 ,  G01J3/02 ,  G01J3/51 ,  G01J3/52

Abstract: An object is to quantify the texture such as irregularity and gloss of a metal surface. Centers of Lab chromaticity distributions are identified (S145), and one of the Lab chromaticity distribution is entirely shifted (mapped) by deviations ΔA, ΔB and ΔL of a central coordinate, such that one of central coordinates of two distributions U1(L,a,b) and U2(L,a,b) matches with the other central coordinate (S146). A texture spread index that indicates a difference in spatial spread is then computed (S147). This configuration computes the spatial spread of the Lab chromaticity distribution in a three-dimensional space, and quantifies the irregularity of an inspection plane by diffraction phenomenon of illumination light. The difference in spread other than the color is applicable to evaluation of the irregularity of the metal surface or the like.

公开(公告)号：US20190195624A1

公开(公告)日：2019-06-27

申请号：US15854829

申请日：2017-12-27

Applicant: PaPaLaB Co., Ltd.

Inventor： Makoto KATO

IPC: G01B11/30 ,  G01J3/46 ,  G01J3/52 ,  G01J3/51 ,  G01J3/02

CPC classification number: G01B11/30 ,  G01J3/0208 ,  G01J3/462 ,  G01J3/465 ,  G01J3/51 ,  G01J3/52 ,  G06K9/4642 ,  G06K9/4652 ,  G06K9/6201 ,  G06K9/6212

Abstract: An object is to quantify the texture such as irregularity and gloss of a metal surface. Centers of Lab chromaticity distributions are identified (S145), and one of the Lab chromaticity distribution is entirely shifted (mapped) by deviations ΔA, ΔB and ΔL of a central coordinate, such that one of central coordinates of two distributions U1(L,a,b) and U2(L,a,b) matches with the other central coordinate (S146). A texture spread index that indicates a difference in spatial spread is then computed (S147). This configuration computes the spatial spread of the Lab chromaticity distribution in a three-dimensional space, and quantifies the irregularity of an inspection plane by diffraction phenomenon of illumination light. The difference in spread other than the color is applicable to evaluation of the irregularity of the metal surface or the like.

公开(公告)号：US10352692B1

公开(公告)日：2019-07-16

申请号：US15899851

申请日：2018-02-20

Applicant: PaPaLaB Co., Ltd.

Inventor： Makoto Kato

IPC: G01B11/00 ,  G01F9/00 ,  G01N21/00 ,  G01B11/30 ,  G06F9/30 ,  G06T7/00 ,  G01N21/88

Abstract: Object:An object is to quantify the roughness of a test surface by scattering and diffraction of illumination light and to evaluate the matching degree of surface roughness separately from color based on a difference in roughness.Solution to ProblemA surface roughness determination apparatus 1 using a white light source includes an arithmetic processing unit 3 configured to convert 3-band visual sensitivity images S1i, S2i and S3i, which respectively have three spectral sensitivities (S1(λ), S2(λ) and S3(λ)) subjected to linear transformation so as to be equivalent to a CIE XYZ color matching function and are obtained from a surface 5 by a two-dimensional colorimeter 2 using the three spectral sensitivities (S1(λ), S2(λ) and S3(λ)), into tristimulus values X, Y and Z in a CIE XYZ color system and perform arithmetic operations. This arithmetic processing unit 3 includes a color difference calculator configured to calculate a color difference ΔE; a color space histogram distribution creator configured to divide an examination area of coordinates corresponding to a color space in the XYZ color system by grids G and respectively integrate the numbers of pixels on a test surface and on a reference surface included in each of the grids G, so as to create color space histogram distributions in the XYZ color system; a surface roughness index calculator configured to calculate a surface roughness index M indicating a difference between the two color space histogram distributions of the test surface and the reference surface with or without an offset correction; a surface roughness measurement data storage unit configured to store a measured surface roughness value Ra actually measured by a roughness meter; and a function setter configured to set at least one of a first calibration curve function L1 indicating a correlation of the measured surface roughness value Ra to a surface roughness evaluation index Est, a second calibration curve function L2 indicating a correlation of the measured surface roughness value Ra to the color difference ΔE, a third calibration curve function L3 indicating a correlation of the measured surface roughness value Ra to the surface roughness index M calculated without the offset correction and a fourth calibration curve function indicating a correlation of the measured surface roughness value Ra to the surface roughness index M calculated with the offset correction.

公开(公告)号：US09532021B2

公开(公告)日：2016-12-27

申请号：US14894383

申请日：2015-03-19

Applicant: PAPALAB CO., LTD.

Inventor： Makoto Kato

IPC: H04N9/73 ,  H04N5/262 ,  H04N9/64 ,  H04N1/60 ,  G01J3/28 ,  G06T11/00 ,  H04N9/74 ,  H04N1/62 ,  H04N9/04

CPC classification number: H04N9/646 ,  G01J3/2823 ,  G06T11/001 ,  H04N1/60 ,  H04N1/6086 ,  H04N1/622 ,  H04N9/04 ,  H04N9/643 ,  H04N9/73 ,  H04N9/735 ,  H04N9/74

Abstract: An object is to accurately provide the user with color fidelity information irrespective of difference in the time of day when or in the location where a commercial product is photographed and prevent mismatching of the user's selection of the commercial product. A color fidelity environment correction system 1 includes a camera 2 and a computer 5 that is connectable with the camera 2, a tablet terminal 3 and a display device 4 and is configured to include a CPU, a ROM, a RAM, a hard disk drive and a bus line. A red vehicle 6 is photographed with the camera 2 (RC-500) in a plant or the like, and XYZ color fidelity images are recorded in a storage unit 51 of the computer 5. Another blue vehicle 7 is photographed with the tablet terminal 3 in the open air, and an RGB color image is stored in a storage unit 52. An RGB color image of the red color vehicle is created with replacement of the blue color of the RGB color image of the vehicle 7 with red color of the 3-band visual sensitivity images S1i, S2i and S3i of the vehicle 6 and is displayed on the display device 4 or is displayed with the RGB color image of the blue vehicle 7 in a comparative manner.

Abstract translation: 目的是为了向用户准确地提供颜色保真度信息，而不管在商业产品被拍摄的位置处或在哪里的时间的差异，并且防止用户对商品的选择不匹配。 彩色保真环境校正系统1包括可与相机2，平板电脑终端3和显示装置4连接的照相机2和计算机5，并且被配置为包括CPU，ROM，RAM，硬盘驱动器 和一条公交线路。 在植物等中用相机2（RC-500）拍摄红色车辆6，并且将XYZ彩色保真度图像记录在计算机5的存储单元51中。另外一个蓝色车辆7用平板电脑终端3拍摄 并且将RGB彩色图像存储在存储单元52中。通过用3的红色替换车辆7的RGB彩色图像的蓝色来创建红色车辆的RGB彩色图像 带状视觉敏感度图像S1i，S2i和S3i，并且以比较的方式显示在显示装置4上或与蓝色车辆7的RGB彩色图像一起显示。