Image correction method for non-uniform cloth feeding speed of automatic cloth inspecting machine based on natural spline interpolation method
A spline interpolation and image correction technology, which is applied to the image correction of uneven cloth speed of automatic cloth inspection machine, and corrects the image distortion caused by uneven cloth movement of automatic cloth inspection machine, which can solve the problem of changing the appearance characteristics of defects and increasing errors. Detection rate and missed detection rate, changing the normal texture shape of fabrics, etc., to achieve the effect of low computer computing load and low memory consumption
Active Publication Date: 2016-07-13
DONGHUA UNIV
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The stretching distortion of the fabric surface image not only changes the normal texture shape of the fabric, but also changes the appearance characteristics of the defects, which makes it difficult to identify and classify the defects, thus increasing the false detection rate and missed detection rate
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0044] The method for image correction of uneven cloth running speed of the automatic cloth inspection machine based on the natural spline interpolation method of the present invention, when inspecting the cloth, the camera line scans to obtain the fabric image and converts it into a grayscale image. The specific steps are as follows:
[0045] (1) if figure 1 As shown, the line scan camera 1 scans the fabric to obtain a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a correction method for non-uniform cloth feeding speed of an automatic cloth inspecting machine based on a natural spline interpolation method, and is used for correcting image distortion caused by non-uniform cloth feeding speed of the automatic cloth inspecting machine. Row sampling lines are equidistantly divided on a fabric surface corresponding to an image along a radial direction again according to cloth feeding speed set by the system to act as the row sampling lines of the corrected image; and the gray scale value of each pixel on the corrected image is acquired by adopting the natural spline interpolation method according to the spatial relation between the corrected sampling points and original sampling points on the fabric surface. The method is low in the required computation load and low in memory consumption and can be applied to real-time processing so as to be applied to subsequent defect identification and processing of the automatic cloth inspecting machine.
Description
technical field [0001] The invention belongs to the technical field of automatic cloth inspection, and relates to a method for correcting image distortion caused by uneven cloth running of an automatic cloth inspection machine, in particular to an image correction method for uneven cloth running speed of an automatic cloth inspection machine based on a natural spline interpolation method , to correct the image distortion caused by the uneven running of the automatic cloth inspection machine. Background technique [0002] At present, the detection of fabric defects is mostly done by traditional manual detection methods, which are limited by the subjective factors of the inspectors and some objective factors. low efficiency. With the rising cost of labor, the demand for automatic cloth inspection equipment is increasing. Foreign companies such as BARCO and Swiss Uster have launched commercialized automatic cloth inspection machines, but due to high prices and variety adaptab...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G01N21/89
CPCG01N21/89G01N21/8914G01N2021/8909G06T5/00
Inventor 万贤福陈俊琰汪军李立轻陈霞
Owner DONGHUA UNIV