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EvenFlow
File size: 2,254 Bytes
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{
  "schema_version": "0.3",
  "scene_id": "aligned_flow.af_0002",
  "layout": {
    "layout_id": "research.sc.s2016",
    "path": "../layouts/s2016.layout.simplified.json",
    "coordinate_frame": "layout_xy_meters",
    "notes": "Scene geometry is expressed in the referenced layout frame."
  },
  "window": {
    "start": "1971-03-27T05:20:45.092000Z",
    "end": "1971-03-27T05:20:55.092000Z",
    "duration_s": 10.0
  },
  "tracking": {
    "tracking_id": "aligned_flow.af_0002",
    "format": "csv",
    "path": "../tracks/aligned_flow.af_0002.tracks.csv",
    "timestamp_field": "timestamp",
    "track_id_field": "person_track_id",
    "coordinate_frame": "layout_xy_meters",
    "notes": "Windowed export from raw tracking chunk with all original columns preserved."
  },
  "flow": {
    "p_star": [
      2.9946727050931456,
      5.006026961387781
    ],
    "u_hat": [
      -0.00809342659267647,
      -0.9999672476866375
    ]
  },
  "metadata": {
    "task_type": "aligned_flow",
    "description": "Aligned-flow benchmark scene exported from mined human candidate af_0002.",
    "score": 3.073344794678055,
    "rerank_score": 5.74320642698242,
    "alignment_signed": 0.9978012410930202,
    "crowd_coherence": 0.876642933038525,
    "crowd_local_density": 52.46,
    "difficulty_score_raw": 0.7640473417470672,
    "difficulty_score_norm": 0.3711896516020962,
    "difficulty_category": "easy",
    "difficulty_rank_within_category": 19,
    "heading_diff_deg": 3.8001964153236543,
    "subject_displacement_m": 7.564807982593052,
    "subject_duration_s": 9.900696,
    "crowd_n_other_tracks": 8,
    "crowd_n_samples": 766
  },
  "provenance": {
    "generator": {
      "name": "build_aligned_flow_benchmark",
      "version": "0.2.0"
    },
    "generated_at": null,
    "source": {
      "chunk_file": "/Volumes/EvenFlow/tracks/clean/sc.s2016/tracking_data_research.sc.s2016_1971-03-27T00:00:00Z_1971-03-28T00:00:00Z/by_chunks/chunk_1971-03-27T05_20_00Z_1971-03-27T05_25_00Z.csv",
      "person_track_id": "55c0e3eb1475",
      "window_start": "1971-03-27T05:20:45.092000+00:00",
      "window_end": "1971-03-27T05:20:55.092000+00:00",
      "candidates_csv": "out/af_clean/s2016_alignedflow_humans_with_difficulty.csv"
    }
  }
}