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Detecting Defects in Fabric with Laser-Based Morphological Image Processing

机译:基于激光的形态图像处理检测织物中的缺陷

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摘要

Morphological operations such as erosion and opening are applied to both direct and spatially filtered images of test fabrics to identify defects. Detecting defecrs morphologically on spatially filtered images of fabrics produces better results, particularly when the fabrics is fine and contains defects of small size. The diffraction pattern of the test fabric is obtained optically by illuminating it with a collimated laser beam. A spatial filter is placed at the Fourier plane to remove the periodic grating structure of the fabric from the image. Morphological operations with the critically selected structuring element are then applied to the image after suitable pre-processing.
机译:将形态学操作(例如腐蚀和开裂)应用于测试织物的直接和空间滤波图像,以识别缺陷。在织物的空间滤波图像上形态学检测缺陷会产生更好的结果,尤其是当织物很好并且包含小尺寸缺陷时。通过用准直的激光束照射而光学地获得测试织物的衍射图案。将空间滤镜放置在傅立叶平面上,以从图像中去除织物的周期性光栅结构。在适当的预处理之后,将具有严格选择的结构元素的形态学操作应用于图像。

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