docs/en/reference/utils/nms.md

metadata

description: >-
  Custom NMS implementation for Ultralytics YOLO with TorchNMS class for
  torchvision-free inference and fast-nms for oriented bounding boxes. Optimized
  for speed and accuracy.
keywords: >-
  NMS, non-maximum suppression, TorchNMS, YOLO, torchvision-free, rotated NMS,
  object detection, bounding boxes, IoU threshold, custom implementation

Reference for ultralytics/utils/nms.py

!!! success "Improvements"

This page is sourced from [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/nms.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/nms.py). Have an improvement or example to add? Open a [Pull Request](https://docs.ultralytics.com/help/contributing/) — thank you! 🙏

::: ultralytics.utils.nms.TorchNMS

---

::: ultralytics.utils.nms.non_max_suppression