You can use IOU metric but you will find a quite complete collection in:

  
      

      github.com
  

  
    

GitHub - rafaelpadilla/review_object_detection_metrics: Object Detection... 1


  Object Detection Metrics. 14 object detection metrics: mean Average Precision (mAP), Average Recall (AR), Spatio-Temporal Tube Average Precision (STT-AP). This project supports different bounding b...