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{
  "polytopobench_version": "1.0",
  "segmentation_format": "segmentation is a list of flat rings [x1, y1, x2, y2, ...] in 512x512 pixel coordinates (origin top-left, y down); ring 0 is the exterior and every further ring is a hole of that exterior. This differs from COCO multi-part polygons, which pycocotools would union.",
  "tasks": {
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      "category": "building",
      "image_format": "tif",
      "splits": {
        "train": {
          "image_dir": "inria/images/train",
          "annotations": "inria/building/train.json",
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          "geoparquet": "inria/building/train.parquet",
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          "holes": 15041,
          "invalid_geometries": 0
        },
        "val": {
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          "annotations": "inria/building/val.json",
          "annotations_sha256": "1ed4a6d69d87feb86c5b7f1a1b36cee8228318feb33234fa554609ea4ed8440c",
          "geoparquet": "inria/building/val.parquet",
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          "images": 3500,
          "instances": 55128,
          "instances_with_holes": 1203,
          "holes": 4813,
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        }
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    },
    "deventer/road": {
      "dataset": "deventer",
      "category": "road",
      "image_format": "png",
      "splits": {
        "train": {
          "image_dir": "deventer/images/train",
          "annotations": "deventer/road/train.json",
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        },
        "val": {
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          "images": 432,
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          "instances_with_holes": 201,
          "holes": 1884,
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        }
      },
      "raw_files_linked": 4306
    },
    "deventer/vegetation": {
      "dataset": "deventer",
      "category": "vegetation",
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      "splits": {
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          "annotations": "deventer/vegetation/train.json",
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          "images": 432,
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          "holes": 360,
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      },
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    },
    "deventer/unvegetated": {
      "dataset": "deventer",
      "category": "unvegetated",
      "image_format": "png",
      "splits": {
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          "image_dir": "deventer/images/train",
          "annotations": "deventer/unvegetated/train.json",
          "annotations_sha256": "3da75981d7aeb74a08876c1bfd4ab0903bab37e90f5344cd23fb64f09a0eb095",
          "geoparquet": "deventer/unvegetated/train.parquet",
          "geoparquet_sha256": "0916f2c37c8614fba9b8d34a1930a70d184b59a283d599d759d5c94eced7db4d",
          "images": 1716,
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          "instances_with_holes": 2350,
          "holes": 8675,
          "invalid_geometries": 90
        },
        "val": {
          "image_dir": "deventer/images/val",
          "annotations": "deventer/unvegetated/val.json",
          "annotations_sha256": "6321677cc57b57bc5477ca4cff45ffc721833fcaa458de87a3c85f6cd5c883d1",
          "geoparquet": "deventer/unvegetated/val.parquet",
          "geoparquet_sha256": "a48abc81445109937ea7740fdd6ae420214f8a2ea1b44d18fcd32a33c628d25a",
          "images": 432,
          "instances": 3300,
          "instances_with_holes": 592,
          "holes": 2074,
          "invalid_geometries": 23
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      },
      "raw_files_linked": 4306
    }
  }
}