{
  "mode": "yolo26",
  "status": "completed",
  "processed_frames": 241,
  "processing_fps": 26.45,
  "wall_seconds": 10.825588,
  "source_fps": 24.0,
  "device": "0",
  "privacy": "solid",
  "recording_start_seconds": 0.0,
  "floor_calibrated": false,
  "config": {
    "line": [
      [
        0.1,
        0.55
      ],
      [
        0.9,
        0.55
      ]
    ],
    "in_side": 1,
    "floor_quad": null,
    "initial_occupancy": 0,
    "hysteresis_px": 8.0,
    "max_gap_frames": 15,
    "privacy": "solid"
  },
  "total_in": 1,
  "total_out": 1,
  "occupancy": 0,
  "raw_occupancy": 0,
  "underflow": false,
  "active_tracks": 2,
  "visible": 0,
  "occupancy_ground_truth_available": false,
  "validation": {
    "input": "AI-generated video, Higgsfield Seedance 2.5",
    "input_width": 1280,
    "input_height": 720,
    "input_frames": 241,
    "input_fps": 24,
    "ground_truth_method": "Independent source-only AI visual review against the pre-fixed gate; event windows, not human-consensus or per-frame box annotation",
    "manual_events": [
      {
        "subject": "red shirt",
        "direction": "OUT",
        "window_seconds": [
          5.25,
          5.5
        ]
      },
      {
        "subject": "blue shirt",
        "direction": "IN",
        "window_seconds": [
          5.75,
          6.0
        ]
      }
    ],
    "observed_events": [
      {
        "direction": "OUT",
        "timestamp": 5.291666666666667
      },
      {
        "direction": "IN",
        "timestamp": 5.916666666666667
      }
    ],
    "event_counts_match": true,
    "matched_events": 2,
    "annotated_events": 2,
    "fixed_parameters": {
      "line": [
        [
          0.1,
          0.55
        ],
        [
          0.9,
          0.55
        ]
      ],
      "in_side": 1,
      "hysteresis_px": 8,
      "initial_occupancy": 0
    },
    "initial_occupancy": "unknown; zero used as arithmetic baseline only",
    "temporary_negative_raw_occupancy": {
      "value": -1,
      "first_frame": 127,
      "last_frame": 141,
      "frames": 15
    },
    "scope": "Single generated clip integration test. Field accuracy, absolute occupancy and full detection/masking recall not evaluated."
  },
  "comparison": {
    "mode": "transparent_overlay",
    "fill_opacity": 0.12,
    "privacy_protection": false,
    "source_frames": 241,
    "overlay_frames": 241,
    "frame_alignment_verified": true,
    "rendered_from": "existing YOLO26 detection telemetry; separate post-processing, excluded from inference timing"
  }
}