An automated arrangement inspection for yarn dyed fabric

In an inspection of a yarn-dyed-fabric, checking warp yarn arrangement is important. The warp is yarn that is attached to either beam on the loom (length-wise), therefore, miss-arrangement of warp yarn causes rejection of whole weaved fabric. In many textile factory, the warp inspection of trial weaving is usually done by skilled worker´s eye. It is heavy task and undetected error causes a heavy loss to the factory. So, automated and reliable inspection by computer vision is required. To realise automated appearance inspection, deformation of fabric comes to an issue. To overcome this problem, we employ autocorrelation images. It makes yarn cycle detection easy, so we can achieve accurate warp arrangements from trial fabric.