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Running on Zero
Running on Zero
| # Dataset | |
| Raw photos live in `items/`; the paired evaluation set (`same/`, `different/`, `pairs.csv`) is generated from them by | |
| `python scripts/build_dataset.py` and is not committed. | |
| ## Raw photos: `items/` | |
| ``` | |
| items/<item>/front.jpeg, back.jpeg, side.jpeg photo set 1 | |
| items/<item>/set2/front.jpeg, back.jpeg, side.jpeg photo set 2, taken separately (only some items) | |
| ``` | |
| | Item | What it is | Photo sets | | |
| |---|---|---| | |
| | speaker_A | clean blue Portronics speaker with a batch label on the base | 1 | | |
| | speaker_B | same model, worn black unit, label gone | 1 | | |
| | shaker_A / shaker_B | two different shaker bottles | 1 | | |
| | bottle_A / bottle_B | same steel bottle model; B has a strap and small dents | 1 | | |
| | headphones_blue | blue Sony over-ear headphones | 2 | | |
| | headphones_black | black, worn Sony headphones of the same design | 2 (set 2 has a new front photo only; back and side reuse set 1) | | |
| Angles: **front** = the main view (earcups facing the camera, product upright), **back** = the reverse / underside | |
| view, **side** = the side profile (for headphones: the slider arm with the SONY logo). | |
| ## Pairs: `same/` and `different/` | |
| ``` | |
| <same|different>/delivery_images/<front|back|side>/<pair_id>.jpeg | |
| <same|different>/return_images/<front|back|side>/<pair_id>.jpeg | |
| ``` | |
| **Pair IDs are numbered separately in each folder.** `same/.../25.jpeg` and `different/.../25.jpeg` are unrelated | |
| pairs. Within one pair, the delivery and return files share the same number. `pairs.csv` lists every pair: | |
| `label, pair_id, delivery_item, return_item, pair_type, delivery_set, return_set`. | |
| | Folder | IDs | Contents | | |
| |---|---|---| | |
| | same | 1–18 | the first 6 items, 3 pairs each: return photo = the delivery photo, digitally re-captured (rotation, zoom, exposure, white balance, blur, JPEG) | | |
| | same | 19–24 | the headphones, the same way | | |
| | same | 25–28 | **real** re-photographs: delivery from one photo set, return from the other (25 & 27: set 1 → set 2; 26 & 28: set 2 → set 1). They look different on purpose | | |
| | different | 1–30 | every ordered pair of the first 6 items | | |
| | different | 31–56 | every new ordered pair involving the headphones | | |
| Return images in `different/` get the same simulated re-capture as in `same/`, so the two classes differ only by the | |
| item. Seeds are fixed: rebuilding produces byte-identical files, and adding items never changes existing pairs. | |