|Table of Contents|

Correction algorithm of artifact in magnetic resonance imagingbased on improved Canny

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2016年01期
Page:
50-
Research Field:
Publishing date:

Info

Title:
Correction algorithm of artifact in magnetic resonance imagingbased on improved Canny
Author(s):
Zhang LinmeiZhao Li
College of Information Engineering,Xinyang College of Agriculture and Forestry,Xinyang 464000,China
Keywords:
magnetic resonance imaging edge detection artifact correction Canny operator image degradation bilateral filtering Gauss filter
PACS:
TP391
DOI:
-
Abstract:
Correction of magnetic resonance imaging artifact is a hot research in the field of image processing.In order to eliminate the artifacts in magnetic resonance imaging and improve the quality of magnetic resonance imaging,a new algorithm based on the improved Canny is proposed in this paper.We analyze the current research situation of magnetic resonance imaging artifact correction,and point out their shortcomings,and use the improved Canny operator to detect and identify the false image edge.Bilateral filtering is used to remove the noise and enhance the artifact information of magnetic resonance imaging while the optimal threshold is selected by the Otsu method.The B spine method is used to correct the abnormal projection data and the performance of the algorithm are verified by simulation experiments.The results show that the proposed algorithm can effectively suppress the artifacts in the magnetic resonance imaging,and the visual effect and objective results are better than the current classical correction algorithms,which is conducive to the following processing of magnetic resonance imaging.

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Last Update: 2016-02-29