EvenFlow / benchmark /aligned_flow /scenes /aligned_flow.af_0039.scene.json
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{
"schema_version": "0.3",
"scene_id": "aligned_flow.af_0039",
"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": "1971-03-10T03:58:25.020826Z",
"end": "1971-03-10T03:58:35.020826Z",
"duration_s": 10.0
},
"tracking": {
"tracking_id": "aligned_flow.af_0039",
"format": "csv",
"path": "../tracks/aligned_flow.af_0039.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": [
0.9221616267456476,
4.178647077220386
],
"u_hat": [
0.02423709015896012,
-0.999706238582428
]
},
"metadata": {
"task_type": "aligned_flow",
"description": "Aligned-flow benchmark scene exported from mined human candidate af_0039.",
"score": 3.047656712301273,
"rerank_score": 5.590285500318643,
"alignment_signed": 0.9997262547421044,
"crowd_coherence": 0.8480673301881162,
"crowd_local_density": 46.08888888888889,
"difficulty_score_raw": 0.8128773023605464,
"difficulty_score_norm": 0.6947168181082399,
"difficulty_category": "medium",
"difficulty_rank_within_category": 2,
"heading_diff_deg": 1.3406667551752776,
"subject_displacement_m": 9.088795120950133,
"subject_duration_s": 8.90074,
"crowd_n_other_tracks": 6,
"crowd_n_samples": 563
},
"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_1971-03-10T00:00:00Z_1971-03-11T00:00:00Z/by_chunks/chunk_1971-03-10T03_55_00Z_1971-03-10T04_00_00Z.csv",
"person_track_id": "6c02874b46ed",
"window_start": "1971-03-10T03:58:25.020826+00:00",
"window_end": "1971-03-10T03:58:35.020826+00:00",
"candidates_csv": "out/af_clean/s2016_alignedflow_humans_with_difficulty.csv"
}
}
}