Title
Computational diagnosis of skin lesions from dermoscopic images using combined features
Abstract
There has been an alarming increase in the number of skin cancer cases worldwide in recent years, which has raised interest in computational systems for automatic diagnosis to assist early diagnosis and prevention. Feature extraction to describe skin lesions is a challenging research area due to the difficulty in selecting meaningful features. The main objective of this work is to find the best combination of features, based on shape properties, colour variation and texture analysis, to be extracted using various feature extraction methods. Several colour spaces are used for the extraction of both colour- and texture-related features. Different categories of classifiers were adopted to evaluate the proposed feature extraction step, and several feature selection algorithms were compared for the classification of skin lesions. The developed skin lesion computational diagnosis system was applied to a set of 1104 dermoscopic images using a cross-validation procedure. The best results were obtained by an optimum-path forest classifier with very promising results. The proposed system achieved an accuracy of 92.3%, sensitivity of 87.5% and specificity of 97.1% when the full set of features was used. Furthermore, it achieved an accuracy of 91.6%, sensitivity of 87% and specificity of 96.2%, when 50 features were selected using a correlation-based feature selection algorithm.
Year
DOI
Venue
2019
10.1007/s00521-018-3439-8
Neural Computing and Applications
Keywords
Field
DocType
Feature extraction and selection, Fractal dimension analysis, Discrete wavelet transform, Co-occurrence matrix
Skin lesion,Pattern recognition,Feature selection,Co-occurrence matrix,Skin cancer,Feature extraction,Correlation,Discrete wavelet transform,Artificial intelligence,Classifier (linguistics),Machine learning,Mathematics
Journal
Volume
Issue
ISSN
31.0
10
1433-3058
Citations 
PageRank 
References 
8
0.49
39
Authors
3
Name
Order
Citations
PageRank
Roberta B. Oliveira1482.31
Aledir Silveira Pereira2786.72
João Manuel R. S. Tavares360362.85