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A method and device for fully automatic equal-area integration of sheet objects of arbitrary shape based on machine vision
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A technology of machine vision and flakes, applied in metal processing, etc., can solve problems such as inapplicability, and achieve the effect of strong self-adaptability, obvious advantages, and wide application prospects
Active Publication Date: 2021-09-07
SHANDONG UNIV
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[0003] In order to overcome the defect that the traditional equal-area block method is only suitable for block-cutting regular-shaped sheets but not for block-changing sheets, the present invention provides a method based on A machine vision automatic equal-area block method and device for irregular sheets. This method has the advantages of being able to adapt to any complex shape, high block accuracy, and good real-time performance. The device can be used as a carrier to realize this method. A schematic diagram of the components of the device is shown in figure 1 shown;
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Embodiment 1
[0038] Embodiment 1 A fully automatic equal-area block dividing device for irregular sheets based on machine vision
[0039] like figure 1 As shown, the automatic equal-area dividing block device for irregular flakes consists of the following three sub-devices:
[0040] Sub-device 1. Light source: used to increase the gray value difference between the irregular sheet to be segmented and the background in the image;
[0041] Sub-device 2. Industrial camera: used to collect the original image of irregular sheet;
[0042] Sub-device 3. Computer: used to install the block software written according to the automatic equal-area block method of irregular sheets;
[0043] Sub-device 4. Tool system: the control module is used to control the movement of the tool according to the divided cutting path, and the tool module is used to complete the cutting of irregular sheets.
Embodiment 2
[0044] Embodiment 2 Based on machine vision, a method for fully automatic equal-area integration of sheets of arbitrary shape
[0045] like figure 2 As shown, the specific steps are as follows:
[0046] Step (1) Set the light source according to the actual situation, and collect the original image of the sheet product through an industrial CCD or CMOS camera;
[0047] Step (2) Image preprocessing: first, separate the color components of the RGB channel of the image, generate a suitable single-channel color component image according to the different processing objects, and then filter out the noise existing in the image through wavelet denoising, and finally through the global automatic Adapt to binarization to convert the grayscale image into a binary image, and complete the segmentation of irregular flakes and background in the image;
[0048] Step (3) completes the segmentation of the image, and obtains the segmentation path of the irregular sheet-like object, as follows: ...
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Abstract
A method and device for fully automatic equal-area block division of irregular sheets based on machine vision, relating to the field of equal-area block cutting of irregular sheet objects based on machine vision. The method first defines the area calculation unit of a unit block according to requirements The number of blocks, and then calculate the number of pixels per block after the vertical block of the irregular sheet, calculate the starting point coordinates of all vertical dividing lines by traversing the image, and traverse the image again to get each vertical The coordinates of the starting points of all horizontal dividing lines in the straight block area are finally completed by the tool system for block cutting. The cutting path of the traditional block method is fixed. This method of fixed cutting path cannot meet the requirements of equal-area block cutting for irregular slices. The method and the device can complete automatic equal-area block cutting for any irregular sheet-shaped object, and have good application prospects.
Description
technical field [0001] The invention relates to a method and device for fully automatic equal-area grouping of sheet objects with arbitrary shapes based on machine vision, in particular to a method and device for fully automatic equal-area grouping of irregularly shaped sheet objects. Background technique [0002] The process of cutting sheets into pieces widely exists in different industries. Whether the block area is uniform can often affect the quality and performance of sheets, such as glass production industry, silicon wafer production industry, etc. A considerable part of the sheets that need to be divided into blocks has a regular shape. At this time, the cutting path after the equal-area block can be calculated by the traditional method, and then the calculated path is transmitted to the numerical control system to control the tool. Complete the equal-area integral block cutting of the regular sheet. At the same time, there are also some industries that have the dem...
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