Statistics

Use of Statistical metrics in ViDi help to:

  • Estimate future performance, e.g. estimate rates of false positives.
  • Optimize tool parameters (parameter search), by finding good Training Tool Parameters or Processing Tool Parameters and setting various thresholds.
  • Test the reproducibility of results.

The topics in this section will help you to understand the metrics output by the Cognex ViDi Tools tools:

  • Score histogram
  • Receiver Operating Characteristic (ROC) Curve and Area Under the Curve (AUC)
  • Confusion Matrix
  • Accuracy, Precision, Recall and F-Score