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Indexed by:会议论文

Date of Publication:2008-07-16

Included Journals:EI、CPCI-S、Scopus

Page Number:235-238

Key Words:Auto-focusing; Sharpness-evaluation-function; Auto-tracking; LIF

Abstract:Improving the detect efficiency of confocal LIF device by using auto-focusing and tracking method, based on image processing. The Laplacian Sharpness-evaluation-function and three image difference methods were used to calculate relative position between lens and object in the LIF system and implement auto-focusing and tracking. The experimental results shown that Laplacian Sharpness-evaluation-function as evaluation function could give optimal focus point. Take coarse-to-precise method to satisfying the both requirement of accuracy and velocity in the auto-focusing.