I have a large set of images in which I need to extract the location of a particle that has an insert. Since the insert is a straight, steel wire, I am tempted to use edge detection. However I fear that it may not be the best strategy to go with. As the particles in the system move around, the shape and size of the wire insert also appear to change. Could I kindly get a few ideas on how to extract location of the wire insert? Raw Images are attached.