Dynamic measurement of fabric wrinkle recovery angle by video sequence

Aiming at the deficiency that the static measurement method can only measure the fabric wrinkle recovery angle at some moment,this paper presents a novel method for dynamic measurement of the wrinkle recovery angle by video sequence.The SDL-M003 loading device is used to press a sample according to AATCC66—2008.Then folded sample is placed in the video sequence system.Each video frame is subjected to binarization and refining preprocessing sequentially and Hough transform is adopted to detect the angles correspondent to the two wings of wrinkle recovery of the sample in the image and further to get the wrinkle recovery angle.The test results of the video sequence method and the AATCC66—2008 test method are close to each other,which indicates that the new method is feasible.It can precisely describe the dynamic process of the wrinkle recovery behavior,and has laid a theoretic foundation for the proposal of new wrinkle evaluation criteria.