form-field-v1 release

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README.md

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+---
+license: other
+license_name: nutrient-commercial
+pipeline_tag: object-detection
+language: [en]
+tags:
+  - object-detection
+  - document-ai
+  - form-field-detection
+datasets:
+  - nutrientdocs/form-field-v1-benchmark
+metrics:
+  - accuracy
+---
+
+# form-field-v1-medium · _commercial_
+
+**The highest-accuracy tier of the `form-field-v1` detector family** — locates `Text`, `Choice`
+(checkbox/radio), and `Signature` widgets on **empty, filled, and handwritten** document pages. ~34M params,
+NMS-free, single-resolution 1216.
+
+The runnable weights are commercial and are not downloadable from this repository — this public page is the
+product specification and scorecard. Prefer a small, open model? See
+[`form-field-v1-nano`](https://huggingface.co/nutrientdocs/form-field-v1-nano) (Apache-2.0).
+
+- 🎯 **Try it:** [form-field-v1-demo](https://huggingface.co/spaces/nutrientdocs/form-field-v1-demo)
+- 🏆 **Leaderboard:** [form-field-v1-leaderboard](https://huggingface.co/spaces/nutrientdocs/form-field-v1-leaderboard)
+- 📊 **Benchmark:** [form-field-v1-benchmark](https://huggingface.co/datasets/nutrientdocs/form-field-v1-benchmark)
+
+## Results
+
+COCO **mAP50-95** on the [`form-field-v1-benchmark`](https://huggingface.co/datasets/nutrientdocs/form-field-v1-benchmark),
+one shared pycocotools scorer across all models.
+
+| Model | Empty | Filled | Handwritten |
+|---|---|---|---|
+| **form-field-v1-medium** (this model) | **0.526** | **0.776** | **0.726** |
+| FFDetr (baseline) | 0.461 | 0.170 | 0.225 |
+| FFDNet-L (baseline) | 0.373 | 0.285 | 0.285 |
+
+Per-class on empty (mAP50-95): Text 0.612 / Choice 0.601 / Signature 0.364. Full per-class breakdowns are on the
+[leaderboard](https://huggingface.co/spaces/nutrientdocs/form-field-v1-leaderboard).
+
+## Output
+
+```json
+[ { "box": [82, 164, 336, 41], "type": "Text", "score": 0.94 } ]
+```
+
+`box` is `[x, y, w, h]` in page pixels; `type` ∈ `Text`, `ChoiceButton`, `Signature`. Served as a single-file
+ONNX graph (fp32 + fp16), verified to reproduce the benchmark (fp32 mAP 0.6776 / fp16 0.6743 over all variants).
+
+## Intended use and limits
+
+- Empty, filled, and handwritten digital/scanned forms are all supported.
+- GPU/server model (~57 fps on an A100). For on-device CPU use `form-field-v1-nano` / `-small`.
+- Very dense pages benefit from higher input resolution.
+
+## License & data
+
+Weights are offered under a commercial Nutrient license. Evaluation is public and reproducible via
+[`form-field-v1-benchmark`](https://huggingface.co/datasets/nutrientdocs/form-field-v1-benchmark). The FFDetr
+baseline is [FF-DETR / CommonForms](https://huggingface.co/jbarrow/FFDetr) by jbarrow, Apache-2.0.
+
+> ### 📩 Get access
+>
+> `form-field-v1-medium` is commercial and its weights are not downloadable here. To run it on-prem, with
+> documents staying in your infrastructure — **contact Nutrient:
+> [nutrient.io/contact-sales](https://www.nutrient.io/contact-sales/).**
+
+## About the author
+
+<a href="https://nutrient.io/">
+  <img src="https://avatars2.githubusercontent.com/u/1527679?v=3&s=200" height="80" />
+</a>
+
+This project is maintained and funded by [Nutrient](https://nutrient.io/) - The deterministic document infrastructure enterprises run their highest-stakes workflows on: replayable output, clear exceptions, and full audit trails on the messy, regulated documents where AI alone breaks.