added specific data types

SPIDER.py

@@ -198,44 +198,44 @@ class SPIDER(datasets.GeneratorBasedBuilder):
             "image_path": datasets.Value("string"),
             "mask_path": datasets.Value("string"),
             "metadata": {
-                "num_vertebrae": datasets.Value(dtype="string"), #TODO: more specific types
-                "num_discs": datasets.Value(dtype="string"),
-                "sex": datasets.Value(dtype="string"),
-                "birth_date": datasets.Value(dtype="string"),
-                "AngioFlag": datasets.Value(dtype="string"),
-                "BodyPartExamined": datasets.Value(dtype="string"),
-                "DeviceSerialNumber": datasets.Value(dtype="string"),
-                "EchoNumbers": datasets.Value(dtype="string"),
-                "EchoTime": datasets.Value(dtype="string"),
-                "EchoTrainLength": datasets.Value(dtype="string"),
-                "FlipAngle": datasets.Value(dtype="string"),
-                "ImagedNucleus": datasets.Value(dtype="string"),
-                "ImagingFrequency": datasets.Value(dtype="string"),
-                "InPlanePhaseEncodingDirection": datasets.Value(dtype="string"),
-                "MRAcquisitionType": datasets.Value(dtype="string"),
-                "MagneticFieldStrength": datasets.Value(dtype="string"),
-                "Manufacturer": datasets.Value(dtype="string"),
-                "ManufacturerModelName": datasets.Value(dtype="string"),
-                "NumberOfPhaseEncodingSteps": datasets.Value(dtype="string"),
-                "PercentPhaseFieldOfView": datasets.Value(dtype="string"),
-                "PercentSampling": datasets.Value(dtype="string"),
-                "PhotometricInterpretation": datasets.Value(dtype="string"),
-                "PixelBandwidth": datasets.Value(dtype="string"),
-                "PixelSpacing": datasets.Value(dtype="string"),
-                "RepetitionTime": datasets.Value(dtype="string"),
-                "SAR": datasets.Value(dtype="string"),
-                "SamplesPerPixel": datasets.Value(dtype="string"),
-                "ScanningSequence": datasets.Value(dtype="string"),
-                "SequenceName": datasets.Value(dtype="string"),
-                "SeriesDescription": datasets.Value(dtype="string"),
-                "SliceThickness": datasets.Value(dtype="string"),
-                "SoftwareVersions": datasets.Value(dtype="string"),
-                "SpacingBetweenSlices": datasets.Value(dtype="string"),
-                "SpecificCharacterSet": datasets.Value(dtype="string"),
-                "TransmitCoilName": datasets.Value(dtype="string"),
-                "WindowCenter": datasets.Value(dtype="string"),
-                "WindowWidth": datasets.Value(dtype="string"),
-                "OrigSubset":datasets.Value(dtype="string"),
+                "num_vertebrae": datasets.Value("int16"),
+                "num_discs": datasets.Value("int16"),
+                "sex": datasets.Value("string"),
+                "birth_date": datasets.Value("date32"),
+                "AngioFlag": datasets.Value("string"),
+                "BodyPartExamined": datasets.Value("string"),
+                "DeviceSerialNumber": datasets.Value("string"),
+                "EchoNumbers": datasets.Value("float32"),
+                "EchoTime": datasets.Value("float32"),
+                "EchoTrainLength": datasets.Value("float32"),
+                "FlipAngle": datasets.Value("float32"),
+                "ImagedNucleus": datasets.Value("string"),
+                "ImagingFrequency": datasets.Value("float32"),
+                "InPlanePhaseEncodingDirection": datasets.Value("string"),
+                "MRAcquisitionType": datasets.Value("string"),
+                "MagneticFieldStrength": datasets.Value("float32"),
+                "Manufacturer": datasets.Value("string"),
+                "ManufacturerModelName": datasets.Value("string"),
+                "NumberOfPhaseEncodingSteps": datasets.Value("int32"),
+                "PercentPhaseFieldOfView": datasets.Value("float64"),
+                "PercentSampling": datasets.Value("float64"),
+                "PhotometricInterpretation": datasets.Value("string"),
+                "PixelBandwidth": datasets.Value("int32"),
+                "PixelSpacing": datasets.Sequence(datasets.Value("float32")),
+                "RepetitionTime": datasets.Value("float64"),
+                "SAR": datasets.Value("float64"),
+                "SamplesPerPixel": datasets.Value("int32"),
+                "ScanningSequence": datasets.Value("string"),
+                "SequenceName": datasets.Value("string"),
+                "SeriesDescription": datasets.Value("string"),
+                "SliceThickness": datasets.Value("float32"),
+                "SoftwareVersions": datasets.Sequence(datasets.Value("string")),
+                "SpacingBetweenSlices": datasets.Value("float32"),
+                "SpecificCharacterSet": datasets.Value("string"),
+                "TransmitCoilName": datasets.Value("string"),
+                "WindowCenter": datasets.Value("float32"),
+                "WindowWidth": datasets.Value("float32"),
+                "OrigSubset":datasets.Value("string"),
             },
             "rad_gradings": {
                 "IVD label": datasets.Sequence(datasets.Value("string")),