Quiz on Two-Stage Object Detector

If a prediction is correct with its bounding box for class $x$, it is a true positive for class $x$ in object detection.

If a prediction is missed for an object belonging to class $x$, it is a false negative for class $x$.

If the model detects an object as class $x$ but it belongs to class $y$, that prediction is a false negative for class $x$ and a false positive for class $y$.

If the model predicts an object belonging to class $x$ as class $x$ and not as $y$, it is true positive for class $x$ and true negative for class $y$.