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Brain MRI Used Data for Gaussian vs SD DPO
This repository release contains the data used for the final matched comparison between Gaussian-noise and SD-generated negative images in Brain MRI DPO training, together with the held-out Figshare segmentation test set.
All released artifacts are located under Brain_MRI_Used_Data_SD/.
Included data
| Split or component | Count |
|---|---|
| DPO positive training images | 15,320 |
| Unique lesion masks referenced by training rows | 11,570 |
| Gaussian negative training images | 15,320 |
| SD negative training images | 15,320 |
| Held-out Figshare test images | 600 |
| Held-out Figshare test masks | 600 |
Manifests
Brain_MRI_Used_Data_SD/train/csv/dpo_train_gaussian_15320.csvBrain_MRI_Used_Data_SD/train/csv/dpo_train_sd_15320.csv
The two DPO manifests share the same positive images, masks, and captions. Only the negative-image source differs.
Caption metadata
Brain_MRI_Used_Data_SD/metadata/base_caption_templates_100.*Brain_MRI_Used_Data_SD/metadata/negative_caption_templates_100.*Brain_MRI_Used_Data_SD/metadata/caption_construction.json
The manifest paths are repository-relative and contain no machine-specific home directory prefixes.
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