{
  "id": 823,
  "url": "https://arxiv.org/abs/2606.19805v1",
  "title": "ParaScale: Scale-Calibrated Camera-Motion Transfer via a Gauge-Invariant Parallax Number",
  "summary": "Transferring the camera motion of a reference video to a freshly generated one lets creators reuse cinematic moves. Yet reference and target often live at incompatible scales -- a sweep across a galaxy versus a nudge across a desk -- and naively reusing the recovered trajectory yields either imperceptible or violently exaggerated motion. We trace this to a geometric fact: translation-induced image motion scales as ||T||/Z, so a monocular trajectory is meaningful only up to a depth-scale gauge. W",
  "authors": "Zijie Meng",
  "category": "research",
  "topics": null,
  "orgs": null,
  "regions": null,
  "published_at": "2026-06-18T05:19:17.000Z",
  "fetched_at": "2026-07-14T14:14:50.323Z",
  "source_slug": "arxiv-ethics",
  "source_name": "arXiv",
  "source_homepage": "https://arxiv.org",
  "ethics_ai_record_url": "https://ethics.ai/record/823",
  "original_url": "https://arxiv.org/abs/2606.19805v1",
  "evidence_status": "source-only",
  "attribution": "via ethics.ai"
}