Microbore automatic measuring method and device

Abstract

The invention relates to a micropore automatic measurement method and device. The steps of the method are as follows: a CCD camera inputs the enlarged image of the micropore through a microscope into a computer; filters the micropore image by using the area method to find the micropore corresponding to the maximum number of pixels; Hole; store the coordinates of the boundary points of the micropores into the linked list, calculate the coordinates of the center point of the micropores, find the maximum value of the aperture in the direction of 0 to 180 degrees, select the maximum and minimum values, and obtain the average value of the aperture and the roundness error. The device is composed of a microscope platform, a light source, an object stage, a micropore and a carrier film, an objective lens, a CCD camera, a computer host, and a display. The advantages of the present invention are simple structure, strong anti-noise ability, high degree of automation, and improved measurement speed and accuracy. .

Description

technical field [0001] The invention relates to a micropore automatic measurement method and device realized by digital image processing technology, which can be used for automatic measurement of micropore diameter, such as micropore measurement used as a spatial filter. Background technique [0002] At present, there are many methods to realize the measurement of micropores. The traditional method is that the operator observes the enlarged image of the micropores through a tool microscope and uses manual measurement. This method has the disadvantages of low efficiency, insufficient precision, and poor stability; there are also CCD cameras that use it to input the enlarged micropore images into the computer through the image acquisition circuit, and determine the micropores by manual mouse marking or scales. Although this method improves the measurement accuracy, it still does not realize the automatic measurement function, and has the disadvantages of cumbersome operation a...

AI Technical Summary

Problems solved by technology

This method has the disadvantages of low efficiency, insufficient precision, and poor stability; there are also CCD cameras that use it to input the enlarged micropore images into the computer through the image acquisition circuit, and determine the micropores by manual mouse marking or scales. The position of the starting point and the end point of the pore diameter, and then calculate the micropore diameter. Although this method improves the measurement accuracy, it still does not realize the automatic measurement function, and there are disadvantages such as cumbersome operation and low efficiency.

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