scholarly journals Medical Image Segmentation of Improved Genetic Algorithm Research Based on Dictionary Learning

2017 ◽  
Vol 05 (01) ◽  
pp. 90-96 ◽  
Author(s):  
Xianqi Cao ◽  
Jiaqing Miao ◽  
Yu Xiao
2016 ◽  
Vol 195 ◽  
pp. 181-194 ◽  
Author(s):  
Payel Ghosh ◽  
Melanie Mitchell ◽  
James A. Tanyi ◽  
Arthur Y. Hung

2019 ◽  
Vol 8 (4) ◽  
pp. 39-59
Author(s):  
Shashwati Mishra ◽  
Mrutyunjaya Panda

Thresholding is one of the important steps in image analysis process and used extensively in different image processing techniques. Medical image segmentation plays a very important role in surgery planning, identification of tumours, diagnosis of organs, etc. In this article, a novel approach for medical image segmentation is proposed using a hybrid technique of genetic algorithm and fuzzy logic. Fuzzy logic can handle uncertain and imprecise information. Genetic algorithms help in global optimization, gives good results in noisy environments and supports multi-objective optimization. Gaussian, trapezoidal and triangular membership functions are used separately for calculating the entropy and finding the fitness value. CPU time, Root Mean Square Error, sensitivity, specificity, and accuracy are calculated using the three membership functions separately at threshold levels 2, 3, 4, 5, 7 and 9. MRI images are considered for applying the proposed method and the results are analysed. The experimental results obtained prove the effectiveness and efficiency of the proposed method.


Author(s):  
Shashwati Mishra ◽  
Mrutyunjaya Panda

Thresholding is one of the important steps in image analysis process and used extensively in different image processing techniques. Medical image segmentation plays a very important role in surgery planning, identification of tumours, diagnosis of organs, etc. In this article, a novel approach for medical image segmentation is proposed using a hybrid technique of genetic algorithm and fuzzy logic. Fuzzy logic can handle uncertain and imprecise information. Genetic algorithms help in global optimization, gives good results in noisy environments and supports multi-objective optimization. Gaussian, trapezoidal and triangular membership functions are used separately for calculating the entropy and finding the fitness value. CPU time, Root Mean Square Error, sensitivity, specificity, and accuracy are calculated using the three membership functions separately at threshold levels 2, 3, 4, 5, 7 and 9. MRI images are considered for applying the proposed method and the results are analysed. The experimental results obtained prove the effectiveness and efficiency of the proposed method.


2013 ◽  
Vol 81 (18) ◽  
pp. 10-15 ◽  
Author(s):  
Divya Kaushik ◽  
Utkarsha Singh ◽  
Paridhi Singhal ◽  
Vijai Singh

2019 ◽  
Vol 31 (6) ◽  
pp. 1007 ◽  
Author(s):  
Haiou Wang ◽  
Hui Liu ◽  
Qiang Guo ◽  
Kai Deng ◽  
Caiming Zhang

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