REAL TIME DETECTING TECHNIQUE FOR WORKPIECE BASED ON COMPUTER VISION

摘要

With stereovision principle, a real time detecting technique for workpiece is proposed, and the principle and method of the detection technique are expounded in detail. First, workpiece edge is detected by wavelet transform. Second, using geometric invariance, corresponding points are searched. Last, workpiece size is detected, workpiece shape is recognized, and workpiece is detected on line. The experiments show that detection deviation is less than 0.2 mm and detection time is less than 4 s.