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An Efficient Auto-focusing Algorithm for Video Measuring System  

Hahn Kwang-Soo (국민대학교 컴퓨터학과)
Publication Information
Journal of KIISE:Software and Applications / v.32, no.9, 2005 , pp. 878-887 More about this Journal
Abstract
The passive focusing method finds the in-focus position by analyzing images captured by a camera. In this paper, we propose an efficient passive auto-focusing algorithm for video measuring systems. The sum of modified Laplacian of Gaussian is used to calculate focus values from images and Gaussian curve fitting is applied to estimate the optimal in-focus position. The Proposed method is tested for various objects and illuminations. The test result is compared with other methods to verify accuracy and efficiency of the proposed algorithm.
Keywords
Auto-focusing; Video Measuring System; VMS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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