Feature extraction with regularized siamese networks for outlier detection: application to lesion screening in medical imaging

International audienceMedical application context: Design a Computer Aided Diagnostic (CAD) system for lesion screening in brain MR images; Assist clinicians in fast lesion detection in routine exams.Specifics: - No annotated pathological data =) voxel-level outlier detection problem - Relatively small data set (around 100 training subjects)Objective: Design an automatic feature extraction method to be used in outlier detection problem at voxel leve