关键词: 相角变换, 二值化, 编织物疵点识别, 几何关系

Abstract: By studying several common knit defects, improved phase angle transform algorithm for knit defects feature extraction and the Mahalanobis distance for knit binarization to achieve defect detection are used in this method. Mathematical principles to achieve knit defect classification are used. This method not only can detect subtle small defects, points of defects, lines of defects, blocks of defects, but also the shape and size of defects is as closer as original kint defects compared with the previous knit defect detection.

Key words: phase angle conversion, binarization, knitted fabric defect detection, geometry