PRISM-Dataset-Sample / labels.json
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{
"metadata": {
"dataset_name": "PRISM",
"version": "1.1.0",
"total_frames": 48792,
"description": "Frame-level classification labels for the PRISM dataset. Labels cover weather condition, road type, surface material, and surface state. For folders with homogeneous surfaces, only default_label is provided. For folders with surface transitions, ordered_segments lists each contiguous segment in chronological order. Short transition zones are excluded with exact timestamp boundaries.",
"label_usage": {
"step_1": "If frame timestamp t falls within any timestamp_override [ts_start, ts_end], use that override's label.",
"step_2": "Otherwise, if ordered_segments exists, determine the segment by cumulative frame_count offsets.",
"step_3": "Otherwise, use default_label."
},
"timestamp_unit": "Unix seconds with millisecond precision (e.g., 1770704845.634)",
"normalization_notes": {
"surface_material": "'ahsphalt' typo corrected to 'asphalt'; 'beigian' typo corrected to 'belgian_block'",
"surface_state": "'snow covered' normalized to 'snow_covered'"
}
},
"class_definitions": {
"weather": {
"clear": "No precipitation, good visibility",
"overcast": "Cloudy sky, no precipitation",
"rainy": "Active rainfall during collection",
"snowy": "Active snowfall during collection",
"foggy": "Reduced visibility due to fog"
},
"road_type": {
"urban": "City roads with intersections and traffic control",
"highway": "High-speed limited-access roads",
"rural": "Country roads outside urban areas",
"proving_ground": "Controlled test facility with specialty road profiles"
},
"surface_material": {
"asphalt": "Standard asphalt (bituminous) pavement",
"concrete": "Portland cement concrete pavement",
"belgian_block": "Cobblestone or interlocking paving block surface",
"gravel": "Loose gravel road surface",
"other": "Other surface types such as plastic speed bumps"
},
"surface_state": {
"dry": "No moisture present on the surface",
"damp": "Slight surface moisture with no standing water",
"wet": "Wet surface; standing water or active rain film possible",
"slush": "Partially melted snow or slush layer",
"snow_covered": "Surface covered by compacted or fresh snow"
}
},
"folders": {
"0106_dataset": {
"ordered_segments": [
{
"ts_start": "1767667361_605",
"ts_end": "1767667454_496",
"label": {
"weather": "clear",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"0112_dataset": {
"ordered_segments": [
{
"ts_start": "1768200916_088",
"ts_end": "1768200990_782",
"label": {
"weather": "snowy",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "snow_covered"
}
}
]
},
"0119_1_dataset": {
"ordered_segments": [
{
"ts_start": "1768791654_524",
"ts_end": "1768791736_119",
"label": {
"weather": "overcast",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "damp"
}
}
]
},
"0119_2_dataset": {
"ordered_segments": [
{
"ts_start": "1768791794_516",
"ts_end": "1768791886_309",
"label": {
"weather": "overcast",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "damp"
}
}
]
},
"0120_dataset": {
"ordered_segments": [
{
"ts_start": "1768891166_060",
"ts_end": "1768891424_644",
"label": {
"weather": "clear",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"0124_dataset": {
"ordered_segments": [
{
"ts_start": "1769223059_386",
"ts_end": "1769223287_575",
"label": {
"weather": "clear",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "slush"
}
}
]
},
"0128_1_dataset": {
"ordered_segments": [],
"ignored_frames": [
{
"ts_start": "1769586554_508",
"ts_end": "1769586600_597"
}
]
},
"0128_2_dataset": {
"ordered_segments": [
{
"ts_start": "1769586754_988",
"ts_end": "1769586792_586",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "concrete",
"surface_state": "snow_covered"
}
}
],
"ignored_frames": [
{
"ts_start": "1769586743_507",
"ts_end": "1769586754_888"
}
]
},
"0128_3_dataset": {
"ordered_segments": [
{
"ts_start": "1769587101_167",
"ts_end": "1769587148_464",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "concrete",
"surface_state": "damp"
}
}
],
"ignored_frames": [
{
"ts_start": "1769587094_478",
"ts_end": "1769587101_067"
}
]
},
"0128_4_dataset": {
"ordered_segments": [
{
"ts_start": "1769587667_132",
"ts_end": "1769587750_327",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "other",
"surface_state": "damp"
}
}
],
"ignored_frames": [
{
"ts_start": "1769587645_534",
"ts_end": "1769587667_032"
}
]
},
"0128_5_dataset": {
"ordered_segments": [
{
"ts_start": "1769587935_817",
"ts_end": "1769587949_517",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "belgian_block",
"surface_state": "snow_covered"
}
},
{
"ts_start": "1769587950_316",
"ts_end": "1769587990_213",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "belgian_block",
"surface_state": "damp"
}
},
{
"ts_start": "1769587997_213",
"ts_end": "1769588017_212",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "belgian_block",
"surface_state": "damp"
}
}
],
"ignored_frames": [
{
"ts_start": "1769587923_429",
"ts_end": "1769587935_717"
},
{
"ts_start": "1769587949_617",
"ts_end": "1769587950_216"
},
{
"ts_start": "1769587990_313",
"ts_end": "1769587997_113"
}
]
},
"0128_6_dataset": {
"ordered_segments": [
{
"ts_start": "1769588187_002",
"ts_end": "1769588273_097",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "concrete",
"surface_state": "wet"
}
}
],
"ignored_frames": [
{
"ts_start": "1769588174_420",
"ts_end": "1769588186_902"
}
]
},
"0128_7_dataset": {
"ordered_segments": [
{
"ts_start": "1769588445_087",
"ts_end": "1769588469_185",
"label": {
"weather": "clear",
"road_type": "proving_ground",
"surface_material": "other",
"surface_state": "damp"
}
}
],
"ignored_frames": [
{
"ts_start": "1769588427_489",
"ts_end": "1769588444_987"
}
]
},
"0129_1_dataset": {
"ordered_segments": [
{
"ts_start": "1769664717_817",
"ts_end": "1769664826_713",
"label": {
"weather": "clear",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "damp"
}
}
]
},
"0129_2_dataset": {
"ordered_segments": [
{
"ts_start": "1769665006_799",
"ts_end": "1769665053_495",
"label": {
"weather": "clear",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "damp"
}
}
]
},
"0129_3_dataset": {
"ordered_segments": [
{
"ts_start": "1769665274_782",
"ts_end": "1769665333_678",
"label": {
"weather": "clear",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "damp"
}
}
]
},
"0129_4_dataset": {
"ordered_segments": [
{
"ts_start": "1769667479_644",
"ts_end": "1769667794_523",
"label": {
"weather": "clear",
"road_type": "rural",
"surface_material": "asphalt",
"surface_state": "damp"
}
}
]
},
"0202_dataset": {
"ordered_segments": [
{
"ts_start": "1770014831_301",
"ts_end": "1770015153_197",
"label": {
"weather": "clear",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "slush"
}
}
]
},
"0210_1_dataset": {
"ordered_segments": [
{
"ts_start": "1770704711_842",
"ts_end": "1770704844_634",
"label": {
"weather": "rainy",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "damp"
}
},
{
"ts_start": "1770704849_334",
"ts_end": "1770704871_632",
"label": {
"weather": "rainy",
"road_type": "urban",
"surface_material": "concrete",
"surface_state": "damp"
}
}
],
"ignored_frames": [
{
"ts_start": "1770704844_734",
"ts_end": "1770704849_234"
}
]
},
"0210_2_dataset": {
"ordered_segments": [
{
"ts_start": "1770706762_717",
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"label": {
"weather": "rainy",
"road_type": "urban",
"surface_material": "asphalt",
"surface_state": "damp"
}
},
{
"ts_start": "1770706891_710",
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"label": {
"weather": "rainy",
"road_type": "urban",
"surface_material": "concrete",
"surface_state": "damp"
}
}
],
"ignored_frames": [
{
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}
]
},
"03181_dataset": {
"ordered_segments": [
{
"ts_start": "1773812015_743",
"ts_end": "1773812039_641",
"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03182_dataset": {
"ordered_segments": [
{
"ts_start": "1773812142_735",
"ts_end": "1773812160_134",
"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03183_dataset": {
"ordered_segments": [
{
"ts_start": "1773812281_727",
"ts_end": "1773812298_625",
"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03184_dataset": {
"ordered_segments": [
{
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"ts_end": "1773812698_901",
"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03185_dataset": {
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{
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"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03186_dataset": {
"ordered_segments": [
{
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"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03187_dataset": {
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{
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"label": {
"weather": "foggy",
"road_type": "highway",
"surface_material": "asphalt",
"surface_state": "dry"
}
}
]
},
"03188_dataset": {
"ordered_segments": [
{
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"label": {
"weather": "foggy",
"road_type": "highway",
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}
}
]
},
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{
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"label": {
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}
},
{
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"label": {
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}
},
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}
}
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},
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}
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}
}
],
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]
},
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"label": {
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}
},
{
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}
},
{
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}
}
],
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]
},
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"label": {
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}
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{
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}
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}
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]
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"label": {
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}
}
]
},
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{
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"label": {
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}
},
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}
}
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},
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"label": {
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}
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],
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},
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}
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}
],
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]
},
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"label": {
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}
}
]
},
"0327_7_dataset": {
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{
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"label": {
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}
}
]
},
"0327_8_dataset": {
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{
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"label": {
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}
},
{
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"label": {
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"surface_material": "gravel",
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}
}
],
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{
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]
},
"0327_9_dataset": {
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{
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"label": {
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}
},
{
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