{
  "candidate": "FALL_SPATIAL_R1",
  "revision": 1,
  "person_score": 0.25,
  "joint_score": 0.10,
  "torso_down_deg": 50.0,
  "leg_down_deg": 50.0,
  "thigh_only_down_deg": 65.0,
  "thigh_only_box_aspect": 1.10,
  "supported_leg_max_deg": 35.0,
  "supported_ankle_drop_box_height": 0.25,
  "torso_length_min_box_diagonal": 0.06,
  "torso_length_max_box_diagonal": 0.85,
  "bilateral_torso_length_ratio_max": 3.5,
  "limb_length_min_box_diagonal": 0.04,
  "limb_length_max_box_diagonal": 1.15,
  "notification_rearm_seconds": 2.0,
  "cooldown_seconds": 10.0,
  "display_hold_seconds": 1.0,
  "display_match_iou_min": 0.20,
  "display_match_distance_max": 0.50,
  "status": "Single common trial candidate, not accepted or deployed",
  "rules": {
    "F1_FULL_LEG": "Valid current torso angle >=50 and at least one same-person hip-to-ankle angle >=50; no observed standing-support leg",
    "F2_THIGH_ONLY": "Only when no hip-to-ankle evidence: valid torso >=50, same-person hip-to-knee >=65 and bbox width/height >=1.10; no standing-support evidence",
    "LOCAL_SUPPORT_VETO": "A same-person hip-to-ankle angle <=35 with ankle below hip by >=0.25 bbox height is standing-support evidence, not an ROI-global veto",
    "INSUFFICIENT": "Missing or implausible required torso/lower-body geometry is unknown, never zero/normal or a relaxed torso-only path"
  },
  "scope": "All rules use only current person geometry; no prior motion, identity requirement or frame/name input. Pixels are original resolution. Angles are image-plane projections, not gravity/floor measurements."
}