Visual Data Mining: Techniques and Tools for Data Visualization and Mining
Visual Data Mining: Techniques and Tools for Data Visualization and Mining
Cellular neural networks and visual computing: foundations and applications
Cellular neural networks and visual computing: foundations and applications
Digital Image Processing
Automated detection of masses in mammograms by local adaptive thresholding
Computers in Biology and Medicine
Fuzzy rough sets hybrid scheme for breast cancer detection
Image and Vision Computing
Journal of Signal Processing Systems
Saliency based mass detection from screening mammograms
Signal Processing
Ensemble classification of colon biopsy images based on information rich hybrid features
Computers in Biology and Medicine
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Breast cancer occurs with high frequency among the world's population and its effects impact the patients' perception of their own sexuality and their very personal image. This work presents a computational methodology that helps specialists detect breast masses in mammogram images. The first stage of the methodology aims to improve the mammogram image. This stage consists in removing objects outside the breast, reducing noise and highlighting the internal structures of the breast. Next, cellular neural networks are used to segment the regions that might contain masses. These regions have their shapes analyzed through shape descriptors (eccentricity, circularity, density, circular disproportion and circular density) and their textures analyzed through geostatistic functions (Ripley's K function and Moran's and Geary's indexes). Support vector machines are used to classify the candidate regions as masses or non-masses, with sensitivity of 80%, rates of 0.84 false positives per image and 0.2 false negatives per image, and an area under the ROC curve of 0.87.