{
  "version": "0.0.1",
  "annotation_definitions": [
    {
      "id": 1,
      "name": "semantic segmentation",
      "description": "pixel-wise semantic segmentation label",
      "format": "PNG",
      "spec": [
        {"label_id": 8, "label_name": "road", "pixel_value": 0},
        {"label_id": 9, "label_name": "sidewalk", "pixel_value": 1},
        {"label_id": 12, "label_name": "building", "pixel_value": 2},
        {"label_id": 13, "label_name": "wall", "pixel_value": 3},
        {"label_id": 14, "label_name": "fence", "pixel_value": 4},
        {"label_id": 18, "label_name": "pole", "pixel_value": 5},
        {"label_id": 20, "label_name": "traffic light", "pixel_value": 6},
        {"label_id": 21, "label_name": "traffic sign", "pixel_value": 7},
        {"label_id": 22, "label_name": "vegetation", "pixel_value": 8},
        {"label_id": 23, "label_name": "terrain", "pixel_value": 9},
        {"label_id": 24, "label_name": "sky", "pixel_value": 10},
        {"label_id": 25, "label_name": "person", "pixel_value": 11},
        {"label_id": 26, "label_name": "rider", "pixel_value": 12},
        {"label_id": 27, "label_name": "car", "pixel_value": 13},
        {"label_id": 28, "label_name": "truck", "pixel_value": 14},
        {"label_id": 29, "label_name": "bus", "pixel_value": 15},
        {"label_id": 32, "label_name": "train", "pixel_value": 16},
        {"label_id": 33, "label_name": "motorcycle", "pixel_value": 17},
        {"label_id": 34, "label_name": "bicycle", "pixel_value": 18}
      ]
    },
    {
      "id": 2,
      "name": "3d bounding box",
      "description": "3d bounding box annotation of object instances",
      "format": "JSON",
      "spec": [
        {"label_id": 27, "label_name": "car"},
        {"label_id": 34, "label_name": "bicycle"},
        {"label_id": 25, "label_name": "person"}
      ]
    },
    {
      "id": 3,
      "name": "lidar semantic segmention",
      "description": "3d point cloud semantic segmentation",
      "format": "PCD",
      "spec": [
        {"label_id": 27, "label_name": "car", "point_value": 0},
        {"label_id": 34, "label_name": "bicycle", "point_value": 1},
        {"label_id": 25, "label_name": "person", "point_value": 2}
      ]
    },
    {
      "id": 4,
      "name": "2d bounding box",
      "description": "2d bounding box annotation",
      "format": "JSON",
      "spec": [
        {"label_id": 27, "label_name": "car"},
        {"label_id": 34, "label_name": "bicycle"},
        {"label_id": 25, "label_name": "person"}
      ]
    }
  ]
}