Mitutoyo Corporation

Kozo Ariga

Akira Takada

Hidemitsu Asano

Masato Kon

Masaru Kawazoe

Fumihiro Takemura

Robert Kamil Bryll

Masaki Kurihara

Koichi Komatsu

Gyokubu Cho

Jyota Miyakura

Tsukasa Kojima

Barry Saylor

Ryan Northrup

Masato Shimizu

Jota Miyakura

When generating a measurement plan for measuring X-ray CT that performs X-ray irradiation while rotating a test object, and in doing so acquires projection image data, reconstructs volume data from the projection image data, and measures a targeted measurement location in the volume data, the present invention calculates required measurement accuracy and a measurement field of view range based on tolerance information included in CAD data of the test object and a measurement location on the test object defined by a measurement operator ahead of time, and automatically generates, from this information, an optimized measurement plan that minimizes the number of measurements.

Method and apparatus for generating measurement plan for measuring X-ray CT

An X-ray CT measuring apparatus configured to emit an X-ray from an X-ray source while rotating a subject arranged on a rotary table, and obtain a tomographic image of the subject by reconstructing projection images, includes an imaging unit for imaging the subject on the rotary table from above or sideways, an obtaining unit for obtaining an image of the subject while rotating the subject, a calculating unit for calculating a maximum outer diameter of the subject during rotation by using the obtained image of the subject, and a setting unit for setting a movement limit of the rotary table on the basis of the maximum outer diameter.

X-ray CT measuring apparatus and interference prevention method thereof

A control unit shifts an imaging unit relatively with respect to a stage to take an image of a measuring object at a plurality of places by the imaging unit and thereby obtain a plurality of images, and generates a composite image of the measuring object having a range which is wider than an imaging range of the imaging unit by combining the plurality of images. The control unit shifts the imaging unit relatively with respect to the stage such that parts of images adjacent to one another obtained by the imaging unit overlap, and performs an image matching processing that performs image matching of an overlapped portion of the adjacent images. The control unit generates the composite image of the measuring object by joining the adjacent images at a position where the image matching is performed in the image matching processing.

Image processing device and method of image processing

A hardness tester that measures a size of an indent to determine the hardness of a sample. The hardness tester includes an imaging unit, a display unit, a pointing device and a position adjustment unit. The imaging unit takes an image of a surface of the sample. The display unit displays a surface image of the sample and a cursor. The pointing device receives a first instruction instructing a movement of the surface image of the sample appearing on the display unit through a movement of the cursor, and a second instruction instructing a change in a height of the sample stage through a movement of the cursor. The position adjustment unit moves the sample stage in a horizontal direction and in a vertical direction.

Hardness tester

A hardness tester includes a CCD camera, a monitor, a clipper (a CPU and a clipping program), and a display controller (the CPU and a display control program). The CCD camera captures an image of an indentation formed on a surface of a specimen via field lenses. The monitor displays the image of the indentation captured by the CCD camera. The clipper clips a plurality of regions from the image of the indentation captured by the CCD camera, the plurality of regions each containing a respective vertex. The display controller simultaneously displays on the monitor images of the plurality of regions clipped by the clipper.

Hardness tester for maintaining image resolution by using image clipping

A machine vision system program editing environment including synchronized selection and/or identification of related features in a plurality of different user interface windows is provided. In particular, one of the windows is an editing window where a part program representation is displayed for editing by a user. In one embodiment, a user may select data or another feature of interest in a window that is not the editing window (e.g., a results window, or graphical workpiece inspection feature display window) and the associated part program instruction representation is automatically highlighted and/or selected in the editing window. Conversely, a part program instruction representation may be selected by a user in the editing window and the associated results or feature in another window is automatically highlighted and/or selected. User interface navigation, rapid program quality assessment, and overall part program creation and editing efficiency are significantly enhanced in such an editing environment.

Machine vision system program editing environment including synchronized user interface features

A hardness tester includes a monitor capable of displaying a main screen and an assistant screen; a first test location setter setting an indentation formation location on a test specimen for an initial test; and a second test location setter setting an indentation formation location on the test specimen for a retest. The second test location setter judges whether a new indentation formation location is suitable for a test based on a surface image of the test specimen and a setting condition obtained during the initial test, and, in a case where it is judged that the new indentation formation location is unsuitable for a test, sets again a coordinate point different from the coordinate point of the new indentation formation location as another new indentation formation location.

Hardness testing device with a user interface for setting test locations

A hardness tester includes a monitor capable of displaying a main screen and assistant screen. A first test location setter sets a coordinate point of an indentation formation location, and stores a setting condition of the set coordinate point and the surface image of a first test specimen. A second test location setter displays the surface image of the first test specimen in the assistant screen when a surface image of a second test specimen is displayed on the main screen, and, when a reference coordinate is set on the surface image of the second test specimen, determines a coordinate point of an indentation formation location based on the set reference coordinate and the setting condition of the coordinate point stored by the first test location setter.

Hardness tester with a user interface for setting test locations

A data memory storing Gerber data containing closed area information of a work; a display displaying a pattern image based on the closed area information of the Gerber data; a detection specification information display program displaying on the display a detection tool specifying a location of edge to be detected, a detection direction and detection length, by superimposing on the pattern image; an image capturing program and an image capturer capturing an image of an area corresponding to the detection tool of the work; an edge detection program performing an edge detection of the location of the edge to be detected with respect to data of a captured image; and a condition determination program determining a light-dark change condition indicating whether an image is changing from a light section to a dark section or from a dark section to a light section along a detection direction.

Image measuring apparatus, program, and teaching method of image measuring apparatus

Methods and systems for automatically recovering a failed video inspection tool in a precision machine vision inspection system are described. A set of recovery instructions may be associated or merged with a video tool to allow the tool to automatically recover and proceed to provide an inspection result after an initial failure. The recovery instructions include operations that evaluate and modify feature inspection parameters that govern acquiring an image of a workpiece feature and inspecting the feature. The set of instructions may include an initial phase of recovery that adjusts image acquisition parameters. If adjusting image acquisition parameters does not result in proper tool operation, additional feature inspection parameters, such as the tool position, may be adjusted. The order in which the multiple feature inspection parameters and their related characteristics are considered may be predefined so as to most efficiently complete the automatic tool recovery process.

System and method for automatically recovering video tools in a vision system

A method of generating a part program for use in an image-measuring system and in an image-measuring instrument is provided. The method can be employed easily by an operator without complicated operations to efficiently generate a part program for a CNC image-measuring instrument. This method facilitates the operator to visually identify a work to be measured, through reading CAD data of the work; setting measurement conditions and a positioning coordinate system; calculating a size of the work when it is practically imaged; and displaying an image of the CAD data with the same size. Then, through setting tolerance information; and selecting an objective graphic to be measured, an edge detection tool is placed for a graphic element of the objective graphic selected. Further, through performing a process to accommodate as many edge detection tools in a determination circle as possible; generating a part program only requiring the least stage movements; performing a practical measurement; checking an image obtained from the measured data with an image obtained from the CAD data, information such as an error from a design value can be displayed on a screen.

Method and apparatus for generating part programs for use in image-measuring instruments, and image-measuring instrument and method of displaying measured results therefrom

An apparatus and program is provided for efficiently generating a part program for image measuring apparatus, conveniently usable for the operator without complicated operations. CAD data of a work is displayed and a target graphic is selected from the CAD data. A detection position mark is displayed on the selected graphic. The CAD data is displayed at a certain magnification that allows the position of the selected target graphic to be identified relative to the entire of the CAD data. In this state, a detection position mark is displayed in the vicinity of the target graphic, and the operator determines the location of the detection position mark.

Part program generating apparatus and program for image measuring apparatus

An apparatus for visual measurement is provided, which can measure a plurality of portions on a work at a high speed. An image pick-up system ( ), including an optical system ( ) and a CCD camera ( ), picks up an image of a work ( ) to obtain image data. The image pick-up system ( ) is driven in the Z axial direction by a driving motor ( ). A displacement of the image pick-up system ( ) in the Z axial direction is measured by a scale counter ( ). A computer ( ) reads image data from the CCD camera ( ) and a Z value from the scale counter ( ) into respective memories ( ) with a constant time interval. A contrast arithmetic unit ( ) computes a contrast value at each of a plurality of different regions of image data obtained at each z axial position by the image pick-up system ( ). It determines a measure for the each region based on the position of the image pick-up system ( ) in the z axial direction when the contrast value comes to the maximum in the each region.

Growing community of inventors

Tokyo, Japan

Kozo Ariga