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A Novel Eigenborder-based Melanoma Diagnosis and Classification Algorithm in Dermoscopy Images

Maryam Nourmohamadi, Hossein Pourghassem


In this paper, a novel melanoma diagnosis and classification algorithm based on shape, texture, color and a new feature that is called eigenborder is proposed. In this algorithm, a modified level set algorithm is used to segment melanoma. In the feature extraction step, with regard to the border of the lesion, features such as Fourier coefficient descriptors is obtained from the location of the pixels on the specified border and eigenborders are extracted using Principle Component Analysis (PCA). Also, in addition to the features related to the color of the lesion, features of the tissue are extracted from the three sub-areas of central, middle, and marginal of lesion. Subsequently, in order to select the best features, a sequential forward selection algorithm, which is carried out based on the classification error by a classifier, is employed. Finally, considering the optimal selected features, Support Vector Machine (SVM) classifier is used to detect melanoma diagnosis. The proposed algorithm is obtained specificity of 92.3% and sensitivity of 94.1% on 642 images.


skin lesion, eigenborder, classification, Support Vector Machine, sequential forward selection, melanoma diagnosis detection.

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