公开(公告)号：US20190219379A1

公开(公告)日：2019-07-18

申请号：US16363975

申请日：2019-03-25

Applicant: CKD Corporation

Inventor： Hiroyuki Ishigaki ,  Takahiro Mamiya

IPC: G01B9/02

CPC classification number: G01B9/02011 ,  G01B9/02 ,  G01B9/0201 ,  G01B11/00 ,  G01B2290/70

Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights and radiates lights to a measurement object and to a reference surface, and recombines the two lights to emit combined light; a first irradiator that emits first light including first polarized light and entering a first surface; a second irradiator that emits second light including second polarized light and entering a second surface; a first imaging system to which the first output light enters wherein the first output light is emitted from the first surface when the first light enters the first surface; a second imaging system to which the second output light enters wherein the second output light is emitted from the second surface when the second light enters the second surface; and an image processor that performs three-dimensional measurement based on interference fringe images obtained by the first and second imaging systems.

公开(公告)号：US10139220B2

公开(公告)日：2018-11-27

申请号：US15867821

申请日：2018-01-11

Applicant: CKD Corporation

Inventor： Tsuyoshi Ohyama ,  Norihiko Sakaida ,  Takahiro Mamiya ,  Hiroyuki Ishigaki

IPC: G01B11/25 ,  G01N21/95 ,  G06T1/00

Abstract: A three-dimensional measurement device includes: a first irradiator that radiates a first light pattern from a first position toward an object; a first grid controller that controls a first grid to change phases of the first light pattern; a second irradiator that radiates a second light pattern from a second position toward the object; a second grid controller that controls the second grid to change phases of the second light pattern; a camera that takes an image of reflected light from the object; and a processor that: performs one of a first imaging process of imaging processes performed by radiation of the first light pattern and a second imaging process of imaging processes performed by radiation of the second light pattern; and subsequently performs the other imaging process without waiting for completion of the transfer or changeover of the first or the second grid involved in the one imaging process.

公开(公告)号：US20140333727A1

公开(公告)日：2014-11-13

申请号：US14444564

申请日：2014-07-28

Applicant: CKD CORPORATION

Inventor： Takahiro Mamiya ,  Hiroyuki Ishigaki

IPC: G01B11/02 ,  G06T7/00

CPC classification number: G01B11/022 ,  G01B11/2531 ,  G06T7/0008 ,  G06T2207/10012 ,  G06T2207/10152 ,  G06T2207/30141 ,  G06T2207/30152

Abstract: A three-dimensional measuring device includes an extraction unit that extracts an image data set with a brightness value of each of pixels in image data within an effective range from among a plurality of image data sets at each of coordinate positions of an object to be measured, and a three-dimensional measurement unit that performs three-dimensional measurement relating to each of the coordinate positions of the object to be measured based on the extracted image data set. The extraction unit extracts the image data set imaged under a pattern light with the highest irradiation brightness among a plurality of types of pattern lights when there is a plurality of sets of the image data sets with the brightness value of each of the pixels in the image data within the effective range from among the plurality of the image data sets.

Abstract translation: 三维测量装置包括提取单元，其从待测对象的每个坐标位置处的多个图像数据组中的有效范围内提取图像数据中的每个像素的亮度值的图像数据集 以及三维测量单元，其基于所提取的图像数据集执行与要测量的对象的每个坐标位置相关的三维测量。 当存在多个具有图像中每个像素的亮度值的多组图像数据组时，提取单元提取在多种图案光中具有最高照射亮度的图案光下成像的图像数据集 数据在多个图像数据集之间的有效范围内。

公开(公告)号：US20230204345A1

公开(公告)日：2023-06-29

申请号：US18177754

申请日：2023-03-02

Applicant: CKD CORPORATION

Inventor： Hiroyuki Ishigaki ,  Ikuo Futamura ,  Takahiro Mamiya

IPC: G01B11/24 ,  G01B11/25 ,  G01B9/023 ,  G06T7/70

CPC classification number: G01B11/2441 ,  G01B11/25 ,  G01B9/023 ,  G06T7/70 ,  G06T2207/30148

Abstract: A three-dimensional measurement device includes: an irradiator that emits a predetermined light; an optical system that splits the predetermined light into two lights, irradiates a measurement object with a measurement light and irradiates a reference plane with a reference light, and emits a combined light; an imaging device that takes an image of the combined light and obtains an interference fringe image; an objective lens for the measurement light that directs the measurement light toward the measurement object; an objective lens for the reference light that directs the reference light toward the reference plane; an imaging lens that forms an image of the combined light on the imaging device; and a control device that executes three-dimensional measurement of a measurement area on the measurement object based on the interference fringe image.

公开(公告)号：US11054241B2

公开(公告)日：2021-07-06

申请号：US16363975

申请日：2019-03-25

Applicant: CKD Corporation

Inventor： Hiroyuki Ishigaki ,  Takahiro Mamiya

IPC: G01B9/02 ,  G01B11/00 ,  G01B11/24

Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights and radiates lights to a measurement object and to a reference surface, and recombines the two lights to emit combined light; a first irradiator that emits first light including first polarized light and entering a first surface; a second irradiator that emits second light including second polarized light and entering a second surface; a first imaging system to which the first output light enters wherein the first output light is emitted from the first surface when the first light enters the first surface; a second imaging system to which the second output light enters wherein the second output light is emitted from the second surface when the second light enters the second surface; and an image processor that performs three-dimensional measurement based on interference fringe images obtained by the first and second imaging systems.

公开(公告)号：US10161744B2

公开(公告)日：2018-12-25

申请号：US15849911

申请日：2017-12-21

Applicant: CKD Corporation

Inventor： Tsuyoshi Ohyama ,  Norihiko Sakaida ,  Takahiro Mamiya ,  Hiroyuki Ishigaki

IPC: G01B11/25 ,  G06T7/00 ,  G06T7/60 ,  G06T7/521

Abstract: A three-dimensional measurement device includes a light source and grid that irradiate a measurement object; a luminance controller that changes luminance levels of the light; a phase controller that changes phase levels of the light pattern; a camera that takes an image of the measurement object; and a processor that three-dimensionally measures a first measurement object area based on different image data taken by radiating a first light pattern in different phases; determines a relationship between a gain and offset determined according to an imaging condition based on the different image data; and three-dimensionally measures a second measurement object area based on two different image data taken by radiating a second light pattern in two different phases by using a gain and offset regarding each pixel determined according to a luminance value of each pixel in the two different image data and the determined relationship.

公开(公告)号：US20180135975A1

公开(公告)日：2018-05-17

申请号：US15867821

申请日：2018-01-11

Applicant: CKD Corporation

Inventor： Tsuyoshi Ohyama ,  Norihiko Sakaida ,  Takahiro Mamiya ,  Hiroyuki Ishigaki

IPC: G01B11/25 ,  G01N21/95

CPC classification number: G01B11/2513 ,  G01B11/2504 ,  G01B11/2527 ,  G01N21/9501 ,  G06T1/00

Abstract: A three-dimensional measurement device includes: a first irradiator that radiates a first light pattern from a first position toward an object; a first grid controller that controls a first grid to change phases of the first light pattern; a second irradiator that radiates a second light pattern from a second position toward the object; a second grid controller that controls the second grid to change phases of the second light pattern; a camera that takes an image of reflected light from the object; and a processor that: performs one of a first imaging process of imaging processes performed by radiation of the first light pattern and a second imaging process of imaging processes performed by radiation of the second light pattern; and subsequently performs the other imaging process without waiting for completion of the transfer or changeover of the first or the second grid involved in the one imaging process.

公开(公告)号：US20170248413A1

公开(公告)日：2017-08-31

申请号：US15596788

申请日：2017-05-16

Applicant: CKD Corporation

Inventor： Tsuyoshi Ohyama ,  Norihiko Sakaida ,  Takahiro Mamiya ,  Hiroyuki Ishigaki

IPC: G01B11/25 ,  H04N7/18 ,  H04N5/225 ,  G01B11/06

CPC classification number: G01B11/2513 ,  G01B11/0608 ,  G01B11/25 ,  H04N5/2256 ,  H04N7/183

Abstract: A measurement apparatus includes an illumination device irradiating an object with a first and a second pattern, a camera taking image data of the object, a motor displacing the object, and a processor measuring the object, obtaining a first value of the object based on a first number of image data taken with the first pattern at a first number of phases at a first position, obtaining a gain and/or offset based on the first number of image data, obtaining a second value of the object based on the gain and/or offset and a second number of image data taken with the second pattern at a second number of phases at a second position, obtaining height data of the object based on the first and the second value, and obtaining the second value with an average of the gain and/or offset of pixels adjacent to each pixel.

公开(公告)号：US09417053B2

公开(公告)日：2016-08-16

申请号：US14444564

申请日：2014-07-28

Applicant: CKD Corporation

Inventor： Takahiro Mamiya ,  Hiroyuki Ishigaki

IPC: G06T7/00 ,  G01B11/02 ,  G01B11/25

CPC classification number: G01B11/022 ,  G01B11/2531 ,  G06T7/0008 ,  G06T2207/10012 ,  G06T2207/10152 ,  G06T2207/30141 ,  G06T2207/30152

Abstract: A three-dimensional measuring device includes an extraction unit that extracts an image data set with a brightness value of each of pixels in image data within an effective range from among a plurality of image data sets at each of coordinate positions of an object to be measured, and a three-dimensional measurement unit that performs three-dimensional measurement relating to each of the coordinate positions of the object to be measured based on the extracted image data set. The extraction unit extracts the image data set imaged under a pattern light with the highest irradiation brightness among a plurality of types of pattern lights when there is a plurality of sets of the image data sets with the brightness value of each of the pixels in the image data within the effective range from among the plurality of the image data sets.

Abstract translation: 三维测量装置包括提取单元，其从待测对象的每个坐标位置处的多个图像数据组中的有效范围内提取图像数据中的每个像素的亮度值的图像数据集 以及三维测量单元，其基于所提取的图像数据集执行与要测量的对象的每个坐标位置相关的三维测量。 当存在多个具有图像中每个像素的亮度值的多组图像数据组时，提取单元提取在多种图案光中具有最高照射亮度的图案光下成像的图像数据集 数据在多个图像数据集之间的有效范围内。