摘要:
A scanner obtains point-cloud data of adjoining parts of a product. A computing device reads two point-clouds from the point-cloud data, fits two or more lines according to the two point-clouds, selects two lines that have the same ascending direction from the two or more lines, and creates a two-dimensional coordinates system base on the two selected lines. The computing device determines a highest point in each of the two point-clouds based on distances from each point in either of the point-clouds to a corresponding selected line, and determines two nearest points in the two point-clouds. A difference between Y coordinates of the two highest points is determined as a gap-height of two adjoining parts of the product, and a difference between X coordinates of the two nearest points is determined as a gap-width between two adjoining parts.
摘要:
A computing device connects with a vision measuring machine (VMS). Then the computing device generates a one time password (OTP). A size of the OTP, the OTP are stored in a predefined file. The computing device obtains a size of measurement program codes of the VMS. The size of the OTP and the size of the measurement program codes are stored in the predefined file. The measurement program codes are encrypted by the OTP. If the measurement data includes image data of an object which is measured by the VMS, the computing device stores the encrypted program codes, a type of the image data, image data, and a size of the image data in the predefined file.
摘要:
A computing device and method for programming a measuring program into the device. The system and method divide an ideal image into one or more sections and obtains the attributes of each of the sections. The system and method measure dimensions from a desired position located in each of the sections based on a coordinate system created for each of the sections, and obtains ideal measurements from the desired position. The system and method generate a measuring program which is capable of executing the steps mentioned above.
摘要:
In an electronic device, an image point A on an image of an object is selected. A spectral confocal sensor is controlled to move to a position above a measuring point A′ on the object, where the measuring point A′ corresponds to the image point A, and a Z-coordinate of the measuring point A′ is computed using the spectral confocal sensor. A focal position of the measuring point A′ is computed according to the Z-coordinate of the measuring point A′, and a CCD lens is controlled to move to the focal position. The Z-coordinate of the measuring point A′ is stored into a storage unit of the electronic device.
摘要:
A light source is configured to be mounted to a vision measuring instrument that includes a primary image capture unit capturing an image of an object to be measured, and an auxiliary image capture unit providing a means to aim the primary image capture unit at a determined position. The light source includes a main body defining a through hole for receiving the primary image capture unit, and a mounting hole for readily mounting an auxiliary image capture unit. A luminescent surface is formed on an inner wall bounding the through hole of the main body. A number of light-emitting diodes (LEDs) is disposed on the luminescent surface.
摘要:
In a method for processing a point cloud using a computing device, a straight line fitted by the point cloud comprising border points is determined as a benchmark line. An inflection point in the point cloud of the benchmark line is determined. If the vertical distance of the inflection point is not greater than the preset filtration value, needless border points in the point cloud are deleted and a remainder point cloud is obtained. If the vertical distance between the inflection point and the benchmark line is greater than a filtration value, the point cloud is divided into two sub-point clouds, and the one sub-point cloud having border points less than the preset number is deleted, and the other sub-point cloud is set as a remainder point cloud.
摘要:
An electronic device and a method for testing the light intensity of the electronic device include setting a colorbar comprising a plurality of colors corresponding to different gray values. The testing method further includes read bitmap data of read image upon the condition that the read image is a gray image, and recording a pixel number corresponding to each gray value. The method further includes drawing a relationship curve between the plurality of gray values and corresponding pixel numbers and recoloring the gray image according to the plurality of colors in the colorbar corresponding to the gray values of each pixel in the gray image, and displaying the relationship curve and a recolored gray image on a display.
摘要:
In a method for measurement of flatness of objects on a measuring machine, at least two objects are fixed on a worktable of the measuring machine. The method establishes a first coordinate system for the worktable location, sets two groups of horizontal scanning points for each object, and sets two groups of vertical scanning points for each object. By controlling at least two laser heads of the measuring machine, the objects are measured and coordinate values for each of the points scanned are obtained. The method calibrates a first coordinate system and establishes a second coordinate system based on the first coordinate system. In the second coordinate system, the at least two laser heads measure the objects and obtain data, and an indication of the flatness of each object is calculated and displayed on a display device.
摘要:
A system and method for determining inflection points in an image of an object includes obtaining the image of the object, performing binary image processing on a border of the image to obtain border points, selecting a predetermined number of the border points to fit a straight line, calculating a vertical distance between each selected border point and the straight line, and obtaining a total distance. The method further includes adding a new border point to the selected border points if the total distance is less than a predetermined value, so as to fit a new straight line and do a loop cycle, otherwise, regarding a last border point of the selected border points as an inflection point, and sequentially selecting the predetermined number of other border points to fit another new straight line.
摘要:
A method for correcting an image of a physical object first captures images of a circle and a rectangle set of a calibration plate placed on a measurement machine, and determines correction data using the images of the circle and the rectangle. The method further corrects the image of the physical object captured by the measurement machine according to the correction data, and displays a corrected image of the physical object.