Figure 3From: Identification and classification of human cytomegalovirus capsids in textured electron micrographs using deformed template matchingFalse positive (FPR) and false negative (FNR) ratios for the different test functions A, B and C. The FNR is defined as the ratio between the number of authentic structures rejected incorrectly by the procedure employing a certain threshold value for the matching measure, and the actual number of virus particles present as determined by a virologist. Analogously, the FPR is the ratio between the number of spurious structures identified as being authentic and the total number of structures considered to be authentic by this procedure.Back to article page