{
 "dataset": "tier3-sources",
 "tier": "tier3_proxy_candidate",
 "note": "Not Tier 3: one frame per second was extracted from two reusable public clips and run through the production detector plus LocalLaneAdapter. No per-facing SKU ground truth exists, so this is an open-world accept-rate probe, not an accuracy score.",
 "method": {
  "frame_sample_hz": 1,
  "frame_long_side": 1280,
  "detector": "production detector",
  "identity": "stock-lopia-clean production local lane"
 },
 "clips": [
  {
   "file": "media/hanzomon-supermarket-pan-132-152.mp4",
   "frames": 20,
   "detected_crops": 227,
   "accepted": 0,
   "accept_rate": 0.0,
   "interpretation": "Correct open-set behaviour. Pixel inspection of frame 10 shows German Kuhne pickle jars, not catalog products."
  },
  {
   "file": "media/kat-in-japan-mayonnaise-aisle-pan-694-720.mp4",
   "frames": 26,
   "detected_crops": 1623,
   "accepted": 24,
   "accept_rate": 0.0148,
   "accepted_by_sku": {
    "sku_l05": 13,
    "sku_l03": 4,
    "sku_l04": 2,
    "sku_l08": 2,
    "sku_l01": 1,
    "sku_l09": 1,
    "sku_l10": 1
   },
   "interpretation": "The clip visibly contains Kewpie and adjacent mayonnaise products, so accepted crops are not automatically false accepts. At 640x360 the labels are too soft for exact per-SKU ground truth. The 1.5% accept rate is therefore a triage signal only; Tier 3 still needs an operator-recorded walk with labels."
  }
 ],
 "summary": {
  "frames": 46,
  "detected_crops": 1850,
  "accepted": 24,
  "accept_rate": 0.013,
  "false_accepts": null,
  "accuracy": null
 }
}