The process would be the same on a DLSR, you would just have to have the shutter speed slow enough to ghost the person. As far as I know no DSLR has a "b-stop" setting. An "f-stop" refers to the diameter of your aperture and is shown as f/2, f/2.8, f/8, etc. and that can be controlled in either Aperture Priority (A) or Manual Mode (M).
Your best bet would be to use the Shutter Priority (S) or Manual Mode (M) settings. This would give you full control over how long you want the shutter speed to be; probably at least 1 second to get the ghost effect I would think. You will need a tripod (or something to sit the camera on) while you do this or else everything will be blurry.
Hopefully that helps.