Fig. 3From: Using radiomic features of lumbar spine CT images to differentiate osteoporosis from normal bone densityEach selected feature was compared with all other features, generating Pearson’s correlation coefficients (r). The r is shown as a heat map. A group of features with high correlation (r > 0.95) are redundant; thus, one feature should be chosen for the model, and the others can be omittedBack to article page