oscd_s2_baseline/preprocessing.json

{
  "input_name": "input",
  "output_name": "logits",
  "input_shape": [
    "batch",
    2,
    4,
    256,
    256
  ],
  "input_layout": "(batch, 2 dates, 4 bands [R,G,B,NIR], H, W)",
  "band_order": [
    "R",
    "G",
    "B",
    "NIR"
  ],
  "value_range": "float32 reflectance; divide uint16 Sentinel-2 L2A (bands B04,B03,B02,B08) by 10000 BEFORE normalization",
  "normalization": {
    "mean": [
      0.13559,
      0.13234,
      0.13953,
      0.2011
    ],
    "std": [
      0.08096,
      0.05684,
      0.04359,
      0.08868
    ]
  },
  "input_size": 256,
  "dynamic_hw": true,
  "resize_to_input": "feed 256px tiles directly (fully-convolutional; dynamic H/W also allowed)",
  "tiling": {
    "tile_size": 256,
    "overlap": 0
  },
  "output": {
    "activation": "sigmoid",
    "meaning": "per-pixel change probability (channel 0)",
    "recommended_threshold": 0.46875,
    "threshold_source": "val-selected (max-F1)"
  }
}