Evaluator of pedestrian detection model

Does anyone know of an existing evaluator? I know that the CocoEvaluator was used in the pytorch tutorial: https://pytorch.org/tutorials/intermediate/torchvision_tutorial.html, but does anyone know of any others?

I would like to evaluate a model for pedestrian detection and I have seen in many papers that miss rate per false positives per image is often used. Due to lack of time, it would be better if I could find an existing evaluator, rather than write from scratch.