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http://dx.doi.org/10.7471/ikeee.2013.17.1.029

An Improved Convex Hull Algorithm Considering Sort in Plane Point Set  

Park, Byeong-Ju (Dept. of Computer Engineering, Hanbat University)
Lee, Jae-Heung (Dept. of Computer Engineering, Hanbat University)
Publication Information
Journal of IKEEE / v.17, no.1, 2013 , pp. 29-35 More about this Journal
Abstract
In this paper, we suggest an improved Convex Hull algorithm considering sort in plane point set. This algorithm has low computational complexity since processing data are reduced by characteristic of extreme points. Also it obtains a complete convex set with just one processing using an convex vertex discrimination criterion. Initially it requires sorting of point set. However we can't quickly sort because of its heavy operations. This problem was solved by replacing value and index. We measure the execution time of algorithms by generating a random set of points. The results of the experiment show that it is about 2 times faster than the existing algorithm.
Keywords
Convex Hull; Convex Polygon; Extreme Point; Image Processing; Parallel Processing;
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