| --- |
| library_name: onnx |
| tags: |
| - dfine |
| - object-detection |
| - coco |
| - computer-vision |
| - apache-2.0 |
| - onnx |
| - inference4j |
| license: apache-2.0 |
| pipeline_tag: object-detection |
| --- |
| |
| # D-FINE Small (COCO) — ONNX |
|
|
| ONNX export of [ustc-community/dfine-small-coco](https://huggingface.co/ustc-community/dfine-small-coco), the small variant of D-FINE (Redefine Bounding Box Regression for DETR-based Object Detection) trained on COCO (80 classes). Licensed under Apache-2.0, providing a commercially permissive, non-copyleft alternative to AGPL-licensed YOLOv8 and YOLO26 models. |
|
|
| Mirrored for use with [inference4j](https://github.com/inference4j/inference4j), an inference-only AI library for Java. |
|
|
| ## Original Source |
|
|
| - **Repository:** [USTC / onnx-community (D-FINE)](https://huggingface.co/ustc-community/dfine-small-coco) |
| - **License:** apache-2.0 |
|
|
| ## Usage with inference4j |
|
|
| ```java |
| try (DFine model = DFine.fromPretrained("inference4j/dfine-small-coco")) { |
| List<Detection> detections = model.detect(Path.of("street.jpg")); |
| detections.forEach(d -> System.out.printf("%s (%.0f%%) at [%.0f, %.0f, %.0f, %.0f]%n", |
| d.label(), d.confidence() * 100, |
| d.box().x1(), d.box().y1(), d.box().x2(), d.box().y2())); |
| } |
| ``` |
|
|
| ## Model Details |
|
|
| | Property | Value | |
| |----------|-------| |
| | Architecture | D-FINE Small (transformer object detector) | |
| | Task | Object detection (COCO 80 classes) | |
| | License note | Apache-2.0 (permissive non-AGPL alternative to YOLOv8/YOLO26) | |
| | Input | `pixel_values`: `[batch, 3, 640, 640]` — RGB, normalized 0-1 (bilinear resize, no letterbox) | |
| | Output | `logits`: `[batch, 300, 80]` (raw logits, apply sigmoid) and `pred_boxes`: `[batch, 300, 4]` (normalized [cx, cy, w, h]) | |
| | Post-processing | Convert [cx, cy, w, h] to [x1, y1, x2, y2] scaled to image dimensions; filter by score threshold (> 0.5). No NMS required. | |
| | Original framework | PyTorch (USTC D-FINE) | |
|
|
| ## License |
|
|
| This model is licensed under the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). Original model by [USTC / Peng et al.](https://github.com/Peterande/D-FINE), hosted by [ustc-community](https://huggingface.co/ustc-community/dfine-small-coco) and converted by [onnx-community](https://huggingface.co/onnx-community/dfine_s_coco-ONNX). |
|
|
