{
  "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": {
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          "image_dir": "inria/images/train",
          "annotations": "inria/building/train.json",
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          "geoparquet": "inria/building/train.parquet",
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          "images": 11860,
          "instances": 199005,
          "instances_with_holes": 4309,
          "holes": 15041,
          "invalid_geometries": 0
        },
        "val": {
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          "annotations": "inria/building/val.json",
          "annotations_sha256": "1ed4a6d69d87feb86c5b7f1a1b36cee8228318feb33234fa554609ea4ed8440c",
          "geoparquet": "inria/building/val.parquet",
          "geoparquet_sha256": "5b0a0182990ea3fa9adf15c38d8e456e23e4ad1218055698f6807e0bf17204ac",
          "images": 3500,
          "instances": 55128,
          "instances_with_holes": 1203,
          "holes": 4813,
          "invalid_geometries": 0
        }
      },
      "raw_files_linked": 540
    },
    "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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          "geoparquet": "deventer/road/train.parquet",
          "geoparquet_sha256": "ca6320ae319ce7ad68f35d358c14bd53ce71560cb3a1ad9c379fdcead58eaf16",
          "images": 1716,
          "instances": 3615,
          "instances_with_holes": 865,
          "holes": 8108,
          "invalid_geometries": 68
        },
        "val": {
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          "geoparquet": "deventer/road/val.parquet",
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          "images": 432,
          "instances": 918,
          "instances_with_holes": 201,
          "holes": 1884,
          "invalid_geometries": 20
        }
      },
      "raw_files_linked": 4306
    },
    "deventer/vegetation": {
      "dataset": "deventer",
      "category": "vegetation",
      "image_format": "png",
      "splits": {
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          "annotations": "deventer/vegetation/train.json",
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          "instances_with_holes": 668,
          "holes": 1117,
          "invalid_geometries": 72
        },
        "val": {
          "image_dir": "deventer/images/val",
          "annotations": "deventer/vegetation/val.json",
          "annotations_sha256": "7534f318971453208e1b2551f6a28b7346a8e018ce2edb52b5a827e5cfb78430",
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          "geoparquet_sha256": "d53e7cfbc0cb6f68a7e5d73dfee8ca53665fab68fef0d7078b8b5c941e23a8df",
          "images": 432,
          "instances": 4906,
          "instances_with_holes": 191,
          "holes": 360,
          "invalid_geometries": 19
        }
      },
      "raw_files_linked": 4306
    },
    "deventer/unvegetated": {
      "dataset": "deventer",
      "category": "unvegetated",
      "image_format": "png",
      "splits": {
        "train": {
          "image_dir": "deventer/images/train",
          "annotations": "deventer/unvegetated/train.json",
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          "geoparquet": "deventer/unvegetated/train.parquet",
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          "images": 1716,
          "instances": 13252,
          "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,
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          "instances_with_holes": 592,
          "holes": 2074,
          "invalid_geometries": 23
        }
      },
      "raw_files_linked": 4306
    }
  }
}