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. 2022 Jan 19;11(2):156. doi: 10.3390/biology11020156

Table 1.

Performance comparison. This table compares the performance of the five methods for bacterial colony detection. Human reference is the manual count result, which is used as the gold standard; ACC represents the average accuracy; TPR represents the percentage of colonies that are correctly identified; FNR represents the percentage of colonies that are incorrectly identified as background; DT(s) represents the average detection time in seconds for each image.

Method TP FP FN ACC TPR FNR DT(s)
Human reference 4898 0 0 100% 100% 0% 257.84
Simple threshold 3605 77,484 1293 4.4% 73.8% 26.2% 0.17
Comprehensive threshold 3327 279 1571 64.3% 67.9% 32.1% 0.26
Tiny YOLOv3 4489 321 409 85.9% 91.6% 8.4% 0.50
Improved YOLOv3 4826 58 72 97.4% 98.5% 1.5% 0.89