Datasets:
File size: 2,102 Bytes
068ee29 bc391b4 068ee29 bc391b4 068ee29 bc391b4 068ee29 bc391b4 068ee29 bc391b4 068ee29 bc391b4 068ee29 bc391b4 068ee29 bc391b4 07c02e2 068ee29 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | {
"units": "mixed_measured_and_normalized_values",
"mueller_matrix": {
"nominal_range": [-1, 1],
"stored_values": "measured_or_processed_float32_values_not_forcibly_clipped",
"note": "Real measured Mueller matrix elements may slightly exceed the nominal [-1, 1] range because of acquisition noise, calibration differences, numerical processing, or normalization error. Users should inspect distributions and apply task-appropriate clipping, standardization, or normalization before training."
},
"parameters": {
"D": {
"range": [0, 1],
"description": "Diattenuation-related target modality."
},
"Delta": {
"range": [0, 1],
"description": "Depolarization-related target modality."
},
"eta": {
"range": [0, "pi"],
"description": "Retardance-related target modality."
},
"theta": {
"range": ["-pi/2", "pi/2"],
"description": "Orientation-related target modality."
},
"psi": {
"range": ["-pi/2", "pi/2"],
"description": "Orientation-related target modality."
},
"R": {
"range": [0, "pi"],
"description": "Retardance-related target modality."
}
},
"normalization": {
"mueller": "not_forcibly_clipped_to_nominal_range",
"waveplate_targets": "stored_from_source_npy_as_float32",
"spectral_targets": "converted_from_grayscale_png_uint8_to_float32_divided_by_255",
"recommendation": "Use training-set statistics or physically motivated clipping/normalization according to the downstream protocol."
},
"grayscale_to_physical_mapping": {
"applies_to_target_encoding": "png_uint8_normalized_to_float32_0_1",
"channel_order": ["D", "Delta", "eta", "theta", "psi", "R"],
"formula": {
"D": "D_gray",
"Delta": "Delta_gray",
"eta": "pi * eta_gray",
"theta": "pi * (theta_gray - 0.5)",
"psi": "pi * (psi_gray - 0.5)",
"R": "pi * R_gray"
},
"warning": "Apply this mapping only to normalized grayscale target tensors. Do not apply it to target tensors that are already stored in physical units."
}
}
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