| # CT Generation Evaluation Docker |
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| This Docker container evaluates CT volume generation predictions by running multiple metrics and merging their outputs into a single JSON file. |
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| ## Metrics |
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| * **FVD\_CTNet** – Frechet Video Distance computed on 3D CT volumes using the CT-Net backbone. |
| * **CLIPScore / CLIP\_I2I** – CLIP-based image-text similarity, reporting both I2T and I2I scores and their mean. |
| * **FID\_2p5D** – 2.5D Frechet Inception Distance computed on orthogonal slices (XY, XZ, YZ). |
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| ## Input Specification |
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| The container accepts either: |
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| ```bash |
| # Mount predictions directory or ZIP archive to /input |
| docker run --rm \ |
| -v "$(pwd)/input":/input \ |
| -v "$(pwd)/output":/output \ |
| forithmus/ctgen-eval:latest |
| ``` |
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| Inside `/input`, provide either: |
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| * A set of flattened `.mha` files under `/input` or any nested subdirectories. |
| * A single `.zip` archive anywhere under `/input` containing `.mha` files. |
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| **Notes:** |
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| * The first matching `.mha` files or the first `.zip` found will be used for evaluation. |
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| ## Ground-Truth Data |
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| Ground-truth `.mha` volumes are baked into the container at: |
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| ``` |
| /opt/app/ground-truth |
| ``` |
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| Each file in this directory should be named by accession or unique identifier and have a `.mha` extension. |
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| ## Output Specification |
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| After evaluation, the container writes the merged metrics JSON to `/output/metrics.json`. The file has the following structure: |
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| ```json |
| { |
| "FVD_CTNet": <float>, // FVD score |
| "CLIPScore": <float>, // CLIP I2T score |
| "CLIPScore_I2I": <float>, // CLIP I2I score |
| "CLIPScore_mean": <float>, // mean CLIP score |
| "FID_2p5D_Avg": <float>, // average 2.5D FID |
| "FID_2p5D_XY": <float>, // XY-plane FID |
| "FID_2p5D_XZ": <float>, // XZ-plane FID |
| "FID_2p5D_YZ": <float> // YZ-plane FID |
| } |
| ``` |
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| All values are floats rounded to four decimal places. |
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| ## Testing |
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| To verify functionality, run: |
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| ```bash |
| ./test.sh |
| ``` |
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| Ensure the script has execute permissions: |
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| ```bash |
| chmod +x test.sh |
| ``` |
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| ## Exporting |
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| Use the `export.sh` script to set environment variables before running evaluation: |
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| ```bash |
| source ./export.sh |
| ``` |
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| This will generate a `.tar.gz` file for submission to the challenge platform. |
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| *For questions or issues, please contact the challenge organizers.* |
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