Method for automatically splicing yarn images
An automatic image stitching and image technology, which is applied to the details of image stitching, image enhancement, image analysis, etc., can solve the problem that the frame rate of the camera is not stable at all times, the overlapping position of the yarn image cannot be obtained accurately, and the yarn moving device cannot be very Accurate control and other issues to achieve the effect of accurate image detection
Inactive Publication Date: 2020-09-01
SHAOXING UNIVERSITY
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Usually, the overlap position between adjacent images is calculated according to the set camera frame rate, the speed of yarn running and the resolution of the camera, but since the frame rate of the camera is not always stable, and the yarn moving device cannot The very precise control walk distance is an integer, so this method cannot accurately get the coincidence position between the yarn images
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[0033] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0034] In one embodiment of the present invention, a kind of as attached figure 1 Shown is used for the method for yarn image automatic mosaic, described method comprises the following steps:
[0035] S100: collecting continuously overlapping yarn images, and acquiring yarn image pairs;
[0036] S200: enhancing the contrast of the yarn image, and processing the yarn image to enhance the contra...
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The invention provides a method for automatically splicing yarn images used for obtaining continuous zero-missing data for evaluating yarn quality. The method comprises the following steps: firstly, continuously acquiring yarn sequence images which are superposed to a certain extent by utilizing image acquisition equipment; secondly, dividing two collected adjacent yarn images into a pair, and performing Fourier transform, point multiplication of a frequency diagram and a Gaussian template, inverse Fourier transform, real number exponent calculation, normalization and other algorithm flows oneach frame of image to enhance the contrast between the yarn and the background; and finally, calculating an overlapping position between the front and rear frames of images by utilizing an image registration algorithm, and splicing the yarn images according to the overlapping position. The method is used for realizing accurate image detection of the yarn parameters and preventing the detection result of the yarn parameters from being influenced by omission of the yarn information when the yarn parameters are detected by utilizing the images.
Description
technical field [0001] The invention relates to the field of yarn quality detection methods, in particular to a method for automatic splicing of yarn images. Background technique [0002] Yarn dryness evenness is an important index to measure yarn quality, which not only determines the appearance and inner quality of textiles, but also has a great influence on the stability of textile production process. Yarn diameter is a direct indicator for evaluating yarn uniformity. Accurate and rapid determination of yarn diameter is an engineering-significant task in the production process of the textile industry. [0003] With the rapid development of computer technology and image processing technology, it has gradually become a trend to use image technology to detect yarn appearance parameters. However, in the process of using the camera to obtain yarn images in the existing technology, many acquisition systems cannot obtain two completely adjacent yarn images at a time, which has ...
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Login to View More IPC IPC(8): G06T3/40G06T5/00G06T7/00G06T7/33G06T7/90G06K9/62
CPCG06T3/4038G06T7/33G06T7/0004G06T7/90G06T2200/32G06T2207/30124G06F18/22G06T5/90
Inventor 李忠健李娟
Owner SHAOXING UNIVERSITY