| license: apache-2.0 | |
| # SAM 2 – Photogrammetry Segmentation (Scroll & Ruler) | |
| Fine-tuned checkpoints of [SAM 2.1](https://github.com/facebookresearch/sam2) (hiera-tiny), | |
| for segmenting the papyrus scroll (and, where present, a calibration ruler) in photogrammetry | |
| photos of the Herculaneum papyri. Produced by fine-tuning the prompt encoder and mask decoder | |
| of SAM 2.1 on a dataset of scroll/mask image pairs. | |
| Code: https://github.com/ScrollPrize/villa/tree/main/foundation/sam2-photogrammetry | |
| ## Checkpoints | |
| | File | Description | | |
| |---|---| | |
| | `photo2_ruler_t_1000.torch` | For photogrammetry captures that include a calibration ruler in frame — segments both scroll and ruler. 1000 training iterations. | | |
| | `photo2_t_5000.torch` | For photogrammetry captures with no ruler in frame — segments scroll only. 5000 training iterations. | | |
| ## Usage | |
| See the [sam2-photogrammetry README](https://github.com/ScrollPrize/villa/tree/main/foundation/sam2-photogrammetry) | |
| for full setup instructions. To fetch a checkpoint directly: | |
| ```bash | |
| wget https://huggingface.co/scrollprize/sam2-photogrammetry/resolve/main/photo2_ruler_t_1000.torch -P checkpoints/ | |
| ``` | |
| ## License | |
| Apache 2.0, matching the parent [SAM 2](https://github.com/facebookresearch/sam2) repository. | |