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公开(公告)号：US10475202B2
公开(公告)日：2019-11-12
申请号：US15423941
申请日：2017-02-03
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida
Abstract: An image measuring device includes an image capturer capturing an image of a work piece, a displacer relatively displacing the work piece and the image capturer, a position acquirer obtaining a position where the image is captured by the image capturer, a controller controlling the image capturer to capture partial images of the work piece while displacing the image capturer relative to the work piece at a fixed speed using the displacer, a total image former forming a total image of the work piece by pasting together a plurality of partial images captured by the image capturer based on position data obtained by the position acquirer, and a light source integrally displacing with the image capturer relative to the work piece and emitting light at a portion of the work piece captured by the image capturer.
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公开(公告)号：US10102631B2
公开(公告)日：2018-10-16
申请号：US15085027
申请日：2016-03-30
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida , Akira Takada , Makoto Kaieda , Gyokubu Cho , Koichi Komatsu , Hidemitsu Asano , Takashi Hanamura , Takuho Maeda , Isao Tokuhara
Abstract: A distance in a scanning direction between a first set of edges which face each other and exhibit an opposite change between light and dark is measured by an image measuring machine, and a bias correction value is calculated based on a difference between a measured value and a true value. Using the bias correction value, detection point correction values, which are correction values in various directions of edge detection points detected by a scan of a measured object using the image measuring machine, are calculated; a correction amount used in correction of the edge detection points is specified based on the detection point correction value in each direction; and the edge detection points are corrected using the correction amount.
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3.发明授权Information processing apparatus, information processing method, program, and vision measuring apparatus 有权信息处理装置，信息处理方法，程序和视觉测量装置公开(公告)号：US09420160B2
公开(公告)日：2016-08-16
申请号：US14482405
申请日：2014-09-10
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida
CPC classification number: H04N5/23212 , G01C11/02 , G03B13/36
Abstract: A method includes obtaining a plurality of object images taken by an image pickup device while moving a focal position within a predetermined range, the image pickup device being capable of taking images at arbitrary focal positions within the predetermined range; calculating a first in-focus position within the predetermined range based on pieces of contrast information on a manually-taken object image group, the manually-taken object image group including the plurality of object images taken while manually moving the focal position within the predetermined range; and calculating a second in-focus position within the search range based on pieces of contrast information on an automatically-taken object image group including the plurality of object images taken while automatically moving the focal position within a search range, the search range being determined with reference to the calculated first in-focus position.
Abstract translation: 一种方法包括在移动预定范围内的焦点位置的同时获取由图像拾取装置拍摄的多个对象图像，所述图像拾取装置能够在预定范围内的任意焦点位置拍摄图像; 基于手动拍摄对象图像组上的对比度信息，计算预定范围内的第一对焦位置，所述手动拍摄对象图像组包括在将焦点位置在预定范围内手动移动时拍摄的多个对象图像 ; 并且基于在自动拍摄的对象图像组中的对比度信息的多个对象信息来计算搜索范围内的第二对焦位置，所述自动拍摄对象图像组包括在搜索范围内自动移动所述焦点位置时拍摄的所述多个对象图像，所述搜索范围由 参考计算的第一个对焦位置。
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公开(公告)号：US20250047992A1
公开(公告)日：2025-02-06
申请号：US18786851
申请日：2024-07-29
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida , Yuji Sadahira , Yuki Yamasaki
IPC: H04N25/61
Abstract: A method for eliminating lens flare that eliminates lens flare is provided. The lens flare elimination method performs: a step for acquiring images by irradiating the coaxial episcopic illumination light with varying irradiation intensities and capturing images at each irradiation intensity while the object is not placed on the mounting table; a step for capturing an image of the object by irradiating the object placed on the mounting table with the coaxial episcopic illumination light at an arbitrary irradiation intensity; a step for estimating an image for correction, which is the image at the irradiation intensity irradiated when the measurement object is captured, based on the images acquired in the image acquiring step; and a step for generating a post-correction image in which the lens flare is eliminated from the image of the object by obtaining the difference between the image of the object and the image for correction.
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公开(公告)号：US20250045931A1
公开(公告)日：2025-02-06
申请号：US18788366
申请日：2024-07-30
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida , Yuji Sadahira , Yuki Yamasaki , Yoshitaka Izumi
Abstract: An image measuring apparatus, according to the present invention, captures an image of the measurement object and measures the dimensions of the measurement point of the measurement object by analyzing the image. The image measuring apparatus comprises: a display unit that displays the image of the measurement object; an input unit that accepts input of the trajectory traced by an operator on the image displayed on the display unit; an edge detection unit that detects an edge based on the traced trajectory on the image; and a measurement performing unit that performs measurement based on one or more detected edges.
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Patent Agency Ranking
6.发明授权Illumination setting method, apparatus and computer-readable medium for a brightness tool of an image measuring apparatus 有权用于图像测量装置的亮度工具的照明设置方法，装置和计算机可读介质公开(公告)号：US09417123B2
公开(公告)日：2016-08-16
申请号：US14271652
申请日：2014-05-07
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida , Satoshi Takafuji , Naoki Shirai
IPC: G01J1/32
CPC classification number: G01J1/32
Abstract: A value of a current corresponding to a relationship between an illumination intensity instruction value and illumination intensity is calculated based on a previously obtained relationship between a current flowing through a light emitting device and the illumination intensity. A calibration table including the illumination intensity instruction value, the calculated value of the current, and the illumination intensity is created. A required illumination intensity is calculated based on exposure time per frame during autofocusing. An illumination intensity instruction value corresponding to the required illumination intensity is calculated using the calibration table. The calculated illumination intensity instruction value is set using the calibration table such that brightness of a measured image remains consistent even when a frame rate is changed.
Abstract translation: 基于先前获得的流过发光器件的电流与照射强度之间的关系，计算与照明强度指示值和照度之间的关系对应的电流值。 产生包括照明强度指示值，计算出的电流值和照明强度的校准表。 基于自动对焦期间每帧的曝光时间计算所需的照明强度。 使用校准表计算对应于所需照度的照明强度指示值。 使用校准表设定计算出的照明强度指示值，使得即使改变帧速率，测量图像的亮度也保持一致。
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公开(公告)号：US10895730B2
公开(公告)日：2021-01-19
申请号：US16358836
申请日：2019-03-20
Applicant: Mitutoyo Corporation
Inventor： Hiroyuki Yoshida , Yukimasa Nishio
Abstract: An information processing apparatus includes: an obtaining unit configured to obtain a manually-taken object image group, the manually-taken object image group including a plurality of object images, the plurality of object images being generated by taking images of an object while moving a focal position of an image pickup device manually; a first calculator capable of calculating, based on pieces of contrast information on the plurality of object images in the obtained manually-taken object image group, a first in-focus position of the image pickup device relative to the object by performing fitting using a predetermined function; and a driver capable of moving, based on an autofocus instruction input by a user, the focal position of the image pickup device to the calculated first in-focus position.
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8.发明申请公开(公告)号：US20190293917A1
公开(公告)日：2019-09-26
申请号：US16358836
申请日：2019-03-20
Applicant: Mitutoyo Corporation
Inventor： Hiroyuki Yoshida , Yukimasa Nishio
Abstract: An information processing apparatus includes: an obtaining unit configured to obtain a manually-taken object image group, the manually-taken object image group including a plurality of object images, the plurality of object images being generated by taking images of an object while moving a focal position of an image pickup device manually; a first calculator capable of calculating, based on pieces of contrast information on the plurality of object images in the obtained manually-taken object image group, a first in-focus position of the image pickup device relative to the object by performing fitting using a predetermined function; and a driver capable of moving, based on an autofocus instruction input by a user, the focal position of the image pickup device to the calculated first in-focus position.
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公开(公告)号：US20140232856A1
公开(公告)日：2014-08-21
申请号：US14259480
申请日：2014-04-23
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida
CPC classification number: H04N5/23212 , G03B13/36 , G06T7/80
Abstract: A vision measuring device includes: a camera which images a workpiece and transfers image information of the workpiece; a position control unit which controls an in-focus position of the camera and outputs the in-focus position as position information representing a position in a Z-axis direction; and a vision measuring machine which performs vision measurement on the workpiece based on image information and position information. The position control unit acquires and retains position information in response to a trigger signal output from the camera or the position control unit to the other at a certain timing of an imaging period during which the camera images the workpiece. The vision measuring machine calculates position information representing a position of image information in the Z-axis direction based on image information transferred from the camera and position information output from the position control unit, and performs auto-focusing control.
Abstract translation: 视觉测量装置包括：对工件成像并传送工件的图像信息的相机; 位置控制单元，其控制相机的对焦位置并输出对焦位置作为表示Z轴方向上的位置的位置信息; 以及基于图像信息和位置信息对工件进行视觉测量的视力测量机。 位置控制单元在照相机成像工件的成像周期的某个定时，响应于从照相机或位置控制单元输出的触发信号，获取并保持位置信息。 视觉测量机基于从相机传送的图像信息和从位置控制单元输出的位置信息来计算表示图像信息在Z轴方向上的位置的位置信息，并执行自动聚焦控制。
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公开(公告)号：US08809756B1
公开(公告)日：2014-08-19
申请号：US14259480
申请日：2014-04-23
Applicant: Mitutoyo Corporation
Inventor： Hiroyuki Yoshida
CPC classification number: H04N5/23212 , G03B13/36 , G06T7/80
Abstract: A vision measuring device includes: a camera which images a workpiece and transfers image information of the workpiece; a position control unit which controls an in-focus position of the camera and outputs the in-focus position as position information representing a position in a Z-axis direction; and a vision measuring machine which performs vision measurement on the workpiece based on image information and position information. The position control unit acquires and retains position information in response to a trigger signal output from the camera or the position control unit to the other at a certain timing of an imaging period during which the camera images the workpiece. The vision measuring machine calculates position information representing a position of image information in the Z-axis direction based on image information transferred from the camera and position information output from the position control unit, and performs auto-focusing control.
Abstract translation: 视觉测量装置包括：对工件成像并传送工件的图像信息的相机; 位置控制单元，其控制相机的对焦位置并输出对焦位置作为表示Z轴方向上的位置的位置信息; 以及基于图像信息和位置信息对工件进行视觉测量的视力测量机。 位置控制单元在照相机成像工件的成像周期的某个定时，响应于从照相机或位置控制单元输出的触发信号，获取并保持位置信息。 视觉测量机基于从相机传送的图像信息和从位置控制单元输出的位置信息来计算表示图像信息在Z轴方向上的位置的位置信息，并执行自动聚焦控制。
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