Optimization of breast lesion segmentation in texture feature space approach

2014 ◽  
Vol 36 (1) ◽  
pp. 129-135 ◽  
Author(s):  
Luminita Moraru ◽  
Simona Moldovanu ◽  
Anjan Biswas
Author(s):  
Joan Massich ◽  
Fabrice Meriaudeau ◽  
Melcior Sentís ◽  
Sergi Ganau ◽  
Elsa Pérez ◽  
...  

Author(s):  
Mariusz Frackiewicz ◽  
Zuzanna Koper ◽  
Henryk Palus ◽  
Damian Borys ◽  
Krzysztof Psiuk-Maksymowicz

Author(s):  
Salman Qadri

The purpose of this study is to highlight the significance of machine vision for the Classification of kidney stone identification. A novel optimized fused texture features frame work was designed to identify the stones in kidney.  A fused 234 texture feature namely (GLCM, RLM and Histogram) feature set was acquired by each region of interest (ROI). It was observed that on each image 8 ROI’s of sizes (16x16, 20x20 and 22x22) were taken. It was difficult to handle a large feature space 280800 (1200x234). Now to overcome this data handling issue we have applied feature optimization technique namely POE+ACC and acquired 30 most optimized features set for each ROI. The optimized fused features data set 3600(1200x30) was used to four machine vision Classifiers that is Random Forest, MLP, j48 and Naïve Bayes. Finally, it was observed that Random Forest provides best results of 90% accuracy on ROI 22x22 among the above discussed deployed Classifiers


2017 ◽  
Vol 37 (1) ◽  
pp. 68 ◽  
Author(s):  
Camilo Pulido Rojas ◽  
Leonardo Solaque Guzmán ◽  
Nelson Velasco Toledo

This paper presents a classification system for weeds and vegetables from outdoor crop images. The classifier is based on support vector machine (SVM) with its extension to nonlinear case using radial basis function (RBF) and optimizing its scale parameter σ to smooth the decision boundary. The feature space is the result of principal component analysis (PCA) for 10 texture measurements calculated from gray level co-occurrence matrices (GLCM). The results indicate that classifier performance is above 90%, validated with specificity, sensitivity and precision calculations.


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