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In this paper, we address the problem of small pulmonary nodule detection on digital tomosynthesis (DT) scans. We propose efficient, domain-specific filters for the enhancement and classification of bright, rounded structures in three-dimensional volumes. First, 61 DT slices per scan are reconstructed from the DT projections by filtered backprojection (FBP). Next, nodule candidates are searched slice-wise...
Contralateral subtraction is an image processing technique aimed to enhance asymmetries in chest radiographs. Since malignant processes often result in asymmetrical lesions, a computer aided diagnostic system capable of enhancing asymmetries on these images could support the diagnostic procedure. The technique itself consists of registration of the two lung areas, and subtraction of the registered...
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