Classification of microcalcifications using a multichannel filtering approach

Presents a method for classification of Mammographic Microcalcifications using Quadrature Mirror Filter (QMF) bank subband decomposition as a tool for extracting textural features. The QMF bank splits the input image into four subbands: low-low band, low-high band, high-low band and high-high band, and textural features based on co-occurrence matrices are computed from the subsampled subbands. The low-low band extracts the information of spatial dependence and the higher frequency bands extract the structural information. The experiments demonstrate that our approach can provide significant discrimination for classification of benign and malignant microcalcifications