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http://dx.doi.org/10.5370/KIEE.2011.60.5.1023

Reduction of Control Areas for Geometric Image Correction  

Lee, Wan-Young (미래산업(주))
Park, Tae-Hyoung (충북대학교 전자공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.5, 2011 , pp. 1023-1029 More about this Journal
Abstract
In the industrial vision systems, image correction has great influence on the overall performance of measurement or inspection. The overall area of distorted image is usually splitted into small control areas, and each area is corrected by its control points. The performance of correction methods using control points can be improved by reduction of control areas because the computational time and memory highly depend on the number of control areas. We develop a merging algorithm that reduces control areas and preserves the correction accuracy. The algorithm merges the splitted control areas by use of quad tree method. Experimental results are presented to verify the usefulness of the proposed method.
Keywords
Image correction; Geometric distortion; Control areas; Merging algorithm; Quad tree;
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