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ship-detection/unet_best.json
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{
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"channels": 1,
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"standardise": false,
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"channelNames": [
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"sar_amplitude"
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],
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"threshold": 0.3,
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"trainedOn": "SAR Ship Detection Dataset (SSDD), ship outlines rasterised from the annotations",
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"tiles": {
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"train": 928,
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"val": 232
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},
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"val": {
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"oil_pixels": 249447
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},
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"allThresholds": [
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{
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"threshold": 0.3,
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}
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],
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"falseAlarms": {
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"tiles": 400,
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"tilesWithDetection": 45,
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"falseAlarmRate": 0.1125,
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"medianFalseAreaPixels": 261.0,
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"minPixels": 50
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},
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"channelRange": null,
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"note": "Trained on 8-bit JPEG chips from SSDD: amplitude already contrast-stretched for display, with no absolute radar scale behind the values. Inference therefore reproduces that domain by stretching the scene's own water percentiles, rather than scaling calibrated decibels over a fixed range.",
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"falseAlarmsNote": "Measured on HRSID pure-background chips: radar over open sea with no vessel in it.",
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"inputScaling": "display-stretch"
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}
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