Forget the sharpened and edge-detected versions of the picture ; the first image shows it quite clearly already: there’s a wire under there!
As for the bulge itself— to me, it looks like it really is just a wrinkle in the
jacket. But it’s a wrinkle caused by the wire! It’s either just the wire
itself, or it’s a point where the wire is taped to the inside of the jacket.
A NASA scientist has used some spare time to do a little image analysis on the "bulge":
http://www.salon.com/news/feature/2004/10/29/bulge/index.html
Forget the sharpened and edge-detected versions of the picture ; the first image shows it quite clearly already: there’s a wire under there!
As for the bulge itself— to me, it looks like it really is just a wrinkle in the
jacket. But it’s a wrinkle caused by the wire! It’s either just the wire
itself, or it’s a point where the wire is taped to the inside of the jacket.