{
  "name": "P0846A_9to2",
  "coarse": {
    "root": "https://dl.ash2txt.org/community-uploads/forrest/volcomp",
    "key": "PHerc0846A/volumes/20250728152254-9.362um-1.2m-113keV-masked.zarr",
    "um": 9.362
  },
  "fine": {
    "root": "https://dl.ash2txt.org/community-uploads/forrest/volcomp",
    "key": "PHerc0846A/volumes/20260319102732-2.403um-0.2m-77keV-masked.zarr",
    "um": 2.403
  },
  "A": [
    [
      0.256488603704,
      0.00010687005812,
      0.000520615245686,
      -5.8782573862
    ],
    [
      -0.00011917295281,
      0.256482665798,
      0.00118342526352,
      -8.98083109657
    ],
    [
      -0.000515549089344,
      -0.00113710916599,
      0.256657211003,
      1889.08759471
    ]
  ],
  "A_inv": [
    [
      3.89879204969,
      -0.0016595595068,
      -0.00790083632661,
      37.8285708321
    ],
    [
      0.00177537620478,
      3.89881850728,
      -0.0179807323132,
      68.9922449649
    ],
    [
      0.00783939589871,
      0.0172702206941,
      3.89615190147,
      -7359.97104123
    ]
  ],
  "A_input": [
    [
      0.256483596214,
      0.000105436932541,
      0.000519283347408,
      -5.76960279479
    ],
    [
      -0.0001204750551,
      0.256476449021,
      0.0011836104822,
      -8.87449450442
    ],
    [
      -0.000514842425347,
      -0.00113488381668,
      0.256661067068,
      1889.11879691
    ]
  ],
  "A_published": [
    [
      0.256580547184,
      0.0000378047483024,
      0.000217525997649,
      -8.88209109147
    ],
    [
      -0.000305068679518,
      0.256315442766,
      0.00203487120203,
      -22.7227224434
    ],
    [
      1.46482864061E-15,
      -2.16953833198E-15,
      0.256675923948,
      1863.73861732
    ]
  ],
  "A_note": "A: fine level-0 voxel (x,y,z) -> coarse level-0 voxel (x,y,z), refined affine; fine(c) = A^-1 (c + D(c)), D the field (coarse L0 voxels, trilinear, clamped outside the grid)",
  "field": {
    "file": "field.f32",
    "n": [
      41,
      47,
      59
    ],
    "o": [
      992.0000,
      1632.0000,
      1935.7100
    ],
    "h": 96.0000,
    "layout": "float32 [nz][ny][nx][3] x,y,z displacement in coarse L0 voxels; node (k,j,i) at o + h (i,j,k)",
    "max_abs": 2.4241
  },
  "fit": {
    "boxes": "passB.jsonl",
    "n": 15000,
    "accepted": 14421,
    "h": 96,
    "lam": 0.03,
    "huber": 0.5,
    "ncc_min": 0.3,
    "sec_max": 0.9,
    "curv_min": 0.002,
    "holdout": 5,
    "affine_only": 0,
    "coarse_um": 9.362,
    "affine_correction": [
      [
        -0.0000195361472251,
        -0.00000560218848222,
        -0.00000512394600488,
        0.118169023432
      ],
      [
        -0.00000508621117198,
        -0.000024232726878,
        8.43710022566E-7,
        0.10449522193
      ],
      [
        0.00000278931602206,
        0.00000874165541956,
        0.000014978216968,
        0.00300194324507
      ]
    ],
    "before": {
      "n": 14421,
      "p10_vox": 0.2284,
      "p50_vox": 0.5852,
      "p90_vox": 1.2013,
      "p99_vox": 1.7323,
      "mean_vox": 0.6631,
      "p50_um": 5.479,
      "p90_um": 11.247
    },
    "holdout_affine": {
      "n": 2884,
      "p10_vox": 0.2250,
      "p50_vox": 0.5744,
      "p90_vox": 1.1984,
      "p99_vox": 1.6728,
      "mean_vox": 0.6552,
      "p50_um": 5.377,
      "p90_um": 11.219
    },
    "holdout_field": {
      "n": 2884,
      "p10_vox": 0.0476,
      "p50_vox": 0.1244,
      "p90_vox": 0.2899,
      "p99_vox": 0.5270,
      "mean_vox": 0.1511,
      "p50_um": 1.165,
      "p90_um": 2.714
    },
    "insample_field": {
      "n": 14421,
      "p10_vox": 0.0015,
      "p50_vox": 0.0045,
      "p90_vox": 0.0118,
      "p99_vox": 0.0229,
      "mean_vox": 0.0059,
      "p50_um": 0.042,
      "p90_um": 0.111
    }
  }
}
