A method of hub auto-recognition on line

The wheel manufacturers are always puzzled by the low efficiency and high error rate of manual testing and classification on the automobile hub production lines, because the workers easily feel confused and tired when having a long time of visual observation. This paper presented a mechanized method applied in the non-contact and auto hub recognition on line, which used the capture of the optical digital image to hub, SIFT(Scale Invariant Feature Transform) features extraction and matching.