{
  "scene_id": "submitted_public_plaza_001",
  "status": "demo_analysis_from_video_frames",
  "walkable_regions": [
    {
      "id": "main_plaza_pavement",
      "description": "Large stone-paved open area in front of the historic gate.",
      "robot_use": "primary navigation region for service or patrol robot",
      "confidence": "medium",
      "needs_real_reconstruction": true
    },
    {
      "id": "gate_approach_path",
      "description": "Approach path toward the gate arch, partially occupied by pedestrians.",
      "robot_use": "goal approach and crowd-aware planning",
      "confidence": "medium",
      "needs_real_reconstruction": true
    }
  ],
  "static_collision_objects": [
    "historic gate wall",
    "bollards",
    "street lamp poles",
    "signage boards",
    "curb boundaries",
    "utility poles"
  ],
  "dynamic_obstacles": [
    "pedestrians",
    "tourist crowd",
    "vehicle/taxi near roadside"
  ],
  "navigation_risks": [
    "crowded gate entrance",
    "uneven or wet-looking stone pavement",
    "thin poles and lamp structures",
    "low bollards that may be hard for some sensors to detect",
    "roadside vehicle zone should be marked as restricted"
  ],
  "recommended_robot_types": [
    "tourism-site service robot",
    "outdoor patrol robot",
    "last-meter delivery robot",
    "crowd-navigation research robot"
  ]
}