| ---
|
| license: cc-by-4.0
|
| tags:
|
| - digital-twins
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| - scene-graphs
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| - healthcare
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| - structured-scene-states
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| - reproducibility
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| - procedural
|
| ---
|
|
|
| # MedPhyGraph — Procedural Support-Graph Data
|
|
|
| **MedPhyGraph: Counterfactual Support-Graph Maintenance for Dynamic Built-Environment Digital Twins**
|
|
|
| | Resource | Link |
|
| |----------|------|
|
| | **Project Website** | https://medphygraph.github.io/ |
|
| | **Model (CF-SupportNet)** | https://huggingface.co/MedPhyGraph/CF-SupportNet |
|
| | **Paper** | \<PAPER_URL\> |
|
| | **Code** | \<GITHUB_URL\> |
|
|
|
| ## Dataset description
|
|
|
| This repository contains structured procedural training and evaluation data used in
|
| the MedPhyGraph paper. It supports the paper's method contribution and is not
|
| presented as a standalone benchmark contribution.
|
|
|
| All redistributed artifacts are **MedPhyGraph-owned procedural structured JSON**.
|
| No NVIDIA Isaac Sim / Isaac for Healthcare assets, USD binaries, meshes, textures,
|
| or Isaac-derived structured scene files are included.
|
|
|
| This repository contains the **Procedural subset (136 of 217 cases)** of the
|
| expanded transfer suite. The paper additionally reports **81 Isaac for Healthcare
|
| cases**, which are **not redistributed here**.
|
|
|
| ### Paper evaluation vs. this public release
|
|
|
| | Suite | Paper (reported) | This repository |
|
| |-------|------------------|-----------------|
|
| | Expanded support-transfer cases | **217** total | **136** procedural only |
|
| | Procedural transfers | 136 | **136** |
|
| | Isaac for Healthcare transfers | 81 | **0** (excluded) |
|
|
|
| The public expanded-transfer subset is **`expanded_transfer_procedural_v1/`**.
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| It is **not** the complete 217-case paper suite.
|
|
|
| ## Components
|
|
|
| ### 1. `training_data/`
|
|
|
| Paper-frozen CF-SupportNet training/evaluation feature dataset (`dataset_hard`).
|
|
|
| | File | Description |
|
| |------|-------------|
|
| | `dataset.json` | 533 analytic counterfactual edge samples |
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| | `split.json` | Scene-level train/val/test split (324 / 101 / 108 samples) |
|
|
|
| **Provenance:** Generated from procedurally authored `hard_000`–`hard_019` scenes via
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| `hard_scenes.py` and `generate_counterfactual_dataset.py`. No Isaac-derived scenes.
|
|
|
| ### 2. `procedural_scenes/`
|
|
|
| Structured **Procedural** evaluation states (TwinWorld Phase-2 dynamic corpus).
|
|
|
| | Property | Value |
|
| |----------|-------|
|
| | `scene.json` directories | 54 |
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| | Geometry | Procedural AABB proxies (`proxy://aabb/...`) |
|
|
|
| ### 3. `expanded_transfer_procedural_v1/`
|
|
|
| Public procedural subset of the paper's expanded transfer evaluation suite.
|
|
|
| | Path | Description |
|
| |------|-------------|
|
| | `predeclared_manifest.json` | Eligibility manifest (procedural cases only) |
|
| | `targets.json` | Ground-truth targets (**136** procedural cases) |
|
| | `scenes/procedural/` | Authored structured scene states for each case |
|
|
|
| ## NVIDIA Isaac for Healthcare: reproduction scope
|
|
|
| This release distinguishes between the fully public Procedural evaluation and
|
| the Isaac for Healthcare evaluation, which depends on separately licensed
|
| NVIDIA software and assets.
|
|
|
| ### 1. Procedural experiments — fully reproducible
|
|
|
| The procedural training data, frozen train/validation/test split, structured
|
| procedural scenes, CF-SupportNet checkpoints, and the Procedural subset of the
|
| expanded transfer evaluation are publicly released.
|
|
|
| The public expanded-transfer subset contains 136 Procedural cases. These
|
| artifacts support end-to-end reproduction of the released Procedural
|
| experiments.
|
|
|
| ### 2. Isaac for Healthcare — NVIDIA software and assets are required
|
|
|
| The MedPhyGraph paper also reports experiments in NVIDIA Isaac for Healthcare
|
| environments.
|
|
|
| NVIDIA Isaac for Healthcare assets, USD/USDA/USDC files, meshes, textures, and
|
| Isaac-derived structured scene states are not redistributed in this release.
|
|
|
| Users interested in running MedPhyGraph with Isaac for Healthcare must obtain
|
| the required NVIDIA Isaac Sim / Isaac for Healthcare software and assets
|
| directly from NVIDIA under the applicable NVIDIA license terms.
|
|
|
| The public MedPhyGraph codebase contains relevant components for working with
|
| locally installed Isaac environments, but the complete paper-frozen Isaac scene
|
| generation workflow is not currently packaged as a standalone end-to-end public pipeline.
|
|
|
| ### 3. Scope of the paper-frozen Isaac evaluation
|
|
|
| The paper's expanded transfer evaluation contains 217 cases in total:
|
|
|
| - 136 Procedural cases
|
| - 81 Isaac for Healthcare cases
|
|
|
| This repository redistributes the 136 Procedural cases only. The 81 Isaac cases
|
| and their corresponding structured scene states are not included.
|
|
|
| Accordingly, the exact Isaac results reported in the paper should not be
|
| expected to be reproducible from the currently released public artifacts alone.
|
| Reconstructing that portion requires the appropriate NVIDIA software and assets
|
| as well as additional MedPhyGraph generation tooling.
|
|
|
| This limitation does not affect reproduction of the publicly released
|
| Procedural experiments.
|
|
|
| ## Expected layout after download
|
|
|
| Mirror paths relative to the MedPhyGraph code repository:
|
|
|
| ```
|
| outputs/dyphygraph_health/dataset_hard/ # from training_data/
|
| outputs/dyphygraph_health/scenes_twinworld_phase2/ # from procedural_scenes/
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| outputs/reviewer_response/expanded_transfer_procedural_v1/
|
| ```
|
|
|
| ## Integrity
|
|
|
| - `SHA256SUMS.txt` — per-file SHA256 digests
|
| - `MANIFEST.json` — public metadata index (relative paths only)
|
|
|
| ## Not included
|
|
|
| | Artifact | Reason |
|
| |----------|--------|
|
| | `scenes_twinworld_i4h_dynamic/` | Isaac-derived structured states — not redistributed |
|
| | Isaac expanded-transfer cases (81) | Isaac-derived — excluded from public subset |
|
| | NVIDIA / i4h USD assets | Third-party license |
|
| | Canonical rebuild `outputs/medphygraph/` | Different research track |
|
|
|
| ## Citation
|
|
|
| ```bibtex
|
| @inproceedings{gholizadeh2026medphygraph,
|
| title={MedPhyGraph: Counterfactual Support-Graph Maintenance for Dynamic Built-Environment Digital Twins},
|
| author={Gholizadeh HamlAbadi, Kamran and Vahdati, Monica and El Saddik, Abdulmotaleb},
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| booktitle={ECCV 2026 TwinWorld Workshop},
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| year={2026}
|
| }
|
| ```
|
|
|
| ## License
|
|
|
| This dataset is released under the **Creative Commons Attribution 4.0 International
|
| License (CC BY 4.0)**. See the `LICENSE` file in the MedPhyGraph code repository
|
| or https://creativecommons.org/licenses/by/4.0/.
|
|
|
| Third-party NVIDIA Isaac for Healthcare assets are **not** included and are **not**
|
| covered by this license.
|
| |
