天津工业大学学报2017，Vol.36Issue(2)：48-53,6.DOI:10.3969/j.issn.1671-024x.2017.02.009
基于霍夫变换的三维编织复合材料预制件表面编织角测量
Measurement of braided angle in 3D braided composite preform based on Hough transform
摘要
Abstract
To solve the problems of the poor accuracy and low efficiency existed in the manual measurement of braided angle in 3D braided composite preform, the measurement method for braided angle is proposed based on Hough trans-form. Firstly, the deviated image is corrected. The flower pitch of each row is segmented according to the position of the peaks and troughs of the horizontal gray projection curve, and the texture direction of the preform is calcu-lated. The first incomplete flower pitch of each row is deleted based on Hough transform , so that all the flower pitches are segmented. Finally, the straight line of each flower pitch is detected based on Hough transform, and the braided angle is calculated according to the slopes of the two cross straight lines. Experimental results show that absolute error of this method is less than 0.5° .关键词
三维编织复合材料预制件/表面编织角/霍夫变换/纹理方向/灰度投影Key words
3D braided composite preform/braided angle/Hough transform/texture direction/gray projection分类
信息技术与安全科学引用本文复制引用
肖志涛,吴善禅,朱雯彦,张芳,耿磊,吴骏,裴蕾..基于霍夫变换的三维编织复合材料预制件表面编织角测量[J].天津工业大学学报,2017,36(2):48-53,6.基金项目
高等学校博士学科点专项科研基金项目(20131201110001) （20131201110001）
中国纺织工业联合会应用基础研究项目(J201509) （J201509）
