Research on the Automatic Focusing Technique of Image Precision Measurement Based on Edge Detection

Abstract:

Along with the continuous development of image precision measurement technique, in the precision imaging system, automatic focusing technique is becoming more and more intelligent. Automatic focusing technique of image precision measurement based on edge detection has become a hot topic in the current research field. On the basis of edge structure features, this paper firstly analyses the commonly used edge detection technique in the image precise measurement. Based on this, it combines the SUSAN filtering algorithm for different edge image value types to introduce Gauss filter parameter σ to locate the edge, so as to improve automatic focusing function of imaging. The experimental results have shown that the method can obviously filter noise, and has a significant automatic focusing effect.

• Periodical: Applied Mechanics and Materials (Volumes 494-495)
• Pages: 968-972
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.494-495.968
• Online since: February 2014
• Authors: Zhi Cao*, Yan Jin, Min Li
• Keywords: Automatic Focusing, Edge Detection, Gauss Filter, Image Precision Measurement

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