1. A scanner system comprising a plurality of scanners cooperating with a corresponding plurality of radiation sources which collectively are spatially separated in a transverse direction relative to a workpiece flow direction and wherein said plurality of scanners have overlapping fields of view, and wherein said plurality of scanners produce corresponding scanned image data for processing by image processing software, whereby said spatial separation allows removal by the image processing software of portions of said image data which include images of interfering transport mechanisms which interfere with unobstructed images of workpieces carried in said flow direction by said transport mechanisms.