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license: mit
library_name: libreyolo
pipeline_tag: object-detection
datasets:
- detection-datasets/coco
tags:
- object-detection
- centernet
- libreyolo
---
# LibreCenterNetresdcn18
CenterNet ResNet-18 with deformable upsampling COCO detector, repackaged for LibreYOLO.
```python
from libreyolo import LibreYOLO
model = LibreYOLO("LibreCenterNetresdcn18.pt")
results = model.predict("image.jpg")
```
## Source
Derived from [xingyizhou/CenterNet](https://github.com/xingyizhou/CenterNet)
at commit
[`4c50fd3a46bdf63dbf2082c5cbb3458d39579e6c`](https://github.com/xingyizhou/CenterNet/commit/4c50fd3a46bdf63dbf2082c5cbb3458d39579e6c).
Copyright (c) 2019 Xingyi Zhou. The source implementation is MIT licensed.
Official checkpoint: [ctdet_coco_resdcn18.pth](https://drive.google.com/file/d/1RtFps3kQAyLjQyzCao7pPDclOBQ64Vyp/view)
Official SHA-256: `f9e413f91cdb235adbcb41c5c4052b8f7ff53999374048949789c29d6df18eaa`
Published COCO test-dev AP without test-time augmentation: 28.1.
## Modifications
The data-parallel `module.` prefix was removed and LibreYOLO v1 checkpoint
metadata was added. Learned tensors are unchanged. The native graph strictly
loads the official state dict and its `hm`, `wh`, and `reg` outputs are
bit-exact against the pinned implementation. LibreYOLO replaces the legacy
DCNv2 extension with torchvision deformable convolution.
See `weights/convert_centernet_weights.py` and
`docs/provenance/centernet.md` in the
[LibreYOLO source repository](https://github.com/LibreYOLO/libreyolo).
## Benchmarks
Independent accuracy and speed benchmarks:
[visionanalysis.org/model/centernet-resdcn18](https://www.visionanalysis.org/model/centernet-resdcn18)
## License
The checkpoint publisher did not attach a standalone per-object license file.
This mirror applies the releasing project's MIT license on an **implied**, not
publisher-confirmed, basis. COCO annotations are CC BY 4.0; source images
retain their individual Flickr terms. See [`LICENSE`](./LICENSE) and
[`NOTICE`](./NOTICE).
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