Warp-knitted Fabric Defect Segmentation Based on the Shearlet Transform
Journal Title: Fibres and Textiles in Eastern Europe - Year 2017, Vol 25, Issue 5
Abstract
The Shearlet transform has been a burgeoning method applied in the area of image processing recently which, differing from the Wavelet transform, has excellent properties in processing singularities for multidimensional signals. Not only is it similar to the performance of the Curvelet transform, it also overcomes the disadvantage of the Curvelet transform with respect to discretization. In this paper, the Shearlet transform with segmented threshold de-nosing is proposed to segment a warp-knitted fabric defect. Firstly a warp-knitted fabric image of size 512*512 is filtered by the Laplacian Pyramid transform and decomposed into low frequency and high frequency coefficients. Secondly the high frequency coefficients are operated with a pseudo-polar grid and then convoluted by the window function. Thirdly the shearlet coefficients will be obtained through redefining the Cartesian coordinates from the pseudo-polar grid coordinates and de-noised by the segmented threshold method. Then the coefficients which have high energy are selected for reconstruction in an inverse way using the previous steps. Finally the iterative threshold method and object operation based on morphology are applied to segment out the defect profile. The experiment’s result states that the Shearlet transform shows excellent performance in segmenting a common warp-knitted fabric defect, indicating that the segment results can be applied for further defect automatic recognition.
Authors and Affiliations
Zhijia Dong, Dong Xia, Pibo Ma, Gaoming Jiang
Keywords
Related Articles
- EP ID EP221794
- DOI 10.5604/01.3001.0010.4633
- Views 58
- Downloads 0
Measurement of Tensile Properties of Seersucker Woven Fabrics of Different Structure
asas<br/><br/>
Lithuanian Folk Textile Heritage: Expressive Possibilities of Designs
Lithuanian folk textile heritage is an important part of world culture heritage, on which various ideas and traditions are imprinted with the emphasis on the education of selfconsciousness of society and preservation of...
Fish Collagen – Molecular Structure After Thermal Treatment
Modern medicine widely uses exogenous collagen as a good material for tissue regeneration, also as a natural substrate for cell attachment and proliferation, used to create dressings and to support the treatment of burn...
Identification of Natural Dyes on 18th Century Liturgical Textiles from Dubrovnik
In this paper researches were carried out on fragments of textiles from the 18[sup]th[/sup] century from Dubrovnik, for which, based on the design and art-historical analysis, it was determined that it was a part of an o...
Numeryczne metody 3D projektowania odzieży dla niepełnosprawnych
Celem artykułu było podjęcie próby zaproponowania i rozwinięcia nowej numerycznej metody tworzenia odzieży w przestrzeni trójwymiarowej, opracowanej przez nasz zespół, dla niestandardowych, atypowych sylwetek. W pracy za...