To address the limitations of traditional methods in terms of long detection time and low accuracy,a multi-objective template matching algorithm detecting position of die based on grid is proposed.By improving the traditional template matching method and combining with non-maximum suppression algorithm,the detection speed and accuracy of chip dice are improved.Experimental results show that the proposed algorithm has a recognition rate of over 97％for a single same die,and the single image processing time does not exceed 200 ms.It can overcome the detection difficulties caused by different brightness and meet the technical specifications.
photoelectric detectiondie position detectionmachine visionnon-maximum suppressiongridmulti-target template matching
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