SegmentationExporter

`SegmentationExporter`

Bases: FromConfigMixin

Exporter for segmentation predictions

Implements the Exporter protocol.

The predictions (i.e. raster data) are transformed to geospatial data (i.e. vector data). The resulting geodataframe contains the geometry of the polygons and their class that is stored in the field field_name as the pixel value of the prediction. The segmentation exporter creates a geopackage named output.gpkg and exports the geodataframe of each tile dynamically. The coordinates of the bottom left corner of the processed tiles are exported dynamically to a JSON file named processed_coordinates.json.

Notes

The segmentation exporter uses multiple threads to vectorize and export the predictions

PARAMETER	DESCRIPTION
`path`	path to the output directory TYPE: `Path`
`tile_size`	tile size in meters TYPE: `TileSize`
`ground_sampling_distance`	ground sampling distance in meters TYPE: `GroundSamplingDistance`
`epsg_code`	EPSG code TYPE: `EPSGCode`
`field_name`	name of the field in the geodataframe TYPE: `str` DEFAULT: `'class'`
`num_workers`	number of workers TYPE: `int` DEFAULT: `4`

`from_config` `classmethod`

Creates a segmentation exporter from the configuration.

PARAMETER	DESCRIPTION
`config`	configuration TYPE: `SegmentationExporterConfig`

RETURNS	DESCRIPTION
`SegmentationExporter`	segmentation exporter

`call`

Exports the predictions.

PARAMETER	DESCRIPTION
`preds`	batched predictions TYPE: `npt.NDArray[np.uint8]`
`coordinates`	coordinates (x_min, y_min) of each tile TYPE: `CoordinatesSet`