# scene-actor-extraction

A face-recognition pipeline that finds when each actor appears on screen in a
film or TV episode — built on [KPN++](https://gitea.tourolle.paris/dtourolle/KPN)
(a C++20 Kahn Process Network library) for the detect → track → match → scene
pipeline, with a Jellyfin-integrated gallery and an X-Ray-validated optimizer.

## Start here

- **[Rep4 model bake-off + threshold re-tune](rep4-optimizer-results.md)** — the
  current experiment log: model comparison, DE threshold tuning, held-out
  validation, and the visual failure-mode evidence (frozen-bbox ghost tracks).
  This is where the shipped `src/config.hpp` defaults come from.
- **[Optimizer experiments (prior round)](optimizer-experiments.md)** — the
  earlier scene-union-metric tuning pass, superseded by the per-second metric
  used in rep4 but kept for the ground-truth/architecture background.
- **[Service conversion (proposal)](service-conversion.md)** — design sketch
  for an idle-GPU Docker worker, not yet built.

## Reproducing the benchmarks

Gallery `.h5` files, embedding dumps, the X-Ray corpus, montage frame images,
and DE trajectories are not committed to this repository — they're pushed to
the Gitea package registry and pulled on demand:

```bash
scripts/artifacts/pull_artifacts.sh galleries
scripts/artifacts/pull_artifacts.sh experiment-data
scripts/artifacts/pull_artifacts.sh montage-frames <film-slug>
```

See `scripts/artifacts/push_artifacts.sh` for the upload side (requires a
`GITEA_TOKEN` with package write scope).