Novel fast median filtering algorithm and its application in medical image
DU Minb · Jisuanji yingyong yanjiu · 2012
Huge data and real time are the characteristics of medical image processing.But standard median filter need to sort all the pixels in the mask for finding the median value.So the algorithm is time consuming,and can't meet the need of real time processing of medical image.To improve the efficiency of median filter,this paper proposed a novel fast median filter algorithm,which changed the process of finding median by sorting into dividing searching.In dividing searching,it used the pixels near middle of the mask for priority dividing searching.It could save the time for sorting.Theory analysis and simulation results prove the proposed algorithm is reasonable and effective.Experiment results show that the algorithm increases the speed of medical image filtering,enhances the real time processing of medical image.