1. A method for inspecting a workpiece comprising: illuminating at least a portion of the workpiece with at least one illumination beam; capturing at least one image comprising at least one line signature formed by illuminating the workpiece with the illumination beam; performing two-dimensional and three-dimensional processes on the captured image; and classifying at least one feature associated with the workpiece based at least in part on data generated by the two-dimensional and three-dimensional processes.