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schema.olf.json
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schema.olf.json
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{
"$schema": "http://json-schema.org/draft-07/schema#",
"$id": "https://github.com/hagl-external/OpenLabelingFormat/blob/master/Schemas/schema.olf.json",
"type": "object",
"title": "OpenLabelingFormat v0.6",
"description": "Maintained by HELLA Aglaia Mobile Vision GmbH (https://hella-aglaia.com)",
"additionalProperties": false,
"properties": {
"versionInfo": {
"type": "object",
"description": "Versions of schema and label files as string.",
"additionalProperties": false,
"properties": {
"name": {
"type": "string",
"description": "Constant 'OpenLabelingFormat' naming the label file.",
"const": "OpenLabelingFormat"
},
"schema": {
"type": "string",
"description": "String containing version of schema used for validation."
},
"labelFile": {
"type": "string",
"description": "String containing version of label file."
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"schema",
"labelFile",
"name"
]
},
"projectInfo": {
"type": "object",
"description": "Project settings.",
"additionalProperties": false,
"properties": {
"intervals": {
"type": "array",
"description": "Analyzed frames or time stamps within media file(s). Must be accumulated over consecutive media files, e. g. frame 0 of media file following a 100 frames media file should be frame 101 etc.",
"items": {
"type": "number",
"description": "Frame no. or time stamp.",
"minimum": 0
}
},
"unit": {
"type": "string",
"description": "Unit of configured start/end/skip or interval settings.",
"enum": [
"frames",
"ms",
"s"
]
},
"configs": {
"type": "array",
"description": "List of references to external configuration files.",
"items": {
"$ref": "#/definitions/fileReference"
}
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"unit",
"intervals"
]
},
"odometryInfo": {
"type": "object",
"description": "Details about corresponding egomotion file(s).",
"additionalProperties": false,
"properties": {
"references": {
"type": "array",
"items": {
"$ref": "#/definitions/fileReferenceWithMediaReference"
}
},
"history": {
"$ref": "#/definitions/history"
}
}
},
"calibrationInfo": {
"type": "object",
"description": "Details about corresponding calibration file(s).",
"additionalProperties": false,
"properties": {
"references": {
"type": "array",
"items": {
"$ref": "#/definitions/fileReferenceWithMediaReference"
}
},
"coordinateSystems": {
"type": "array",
"items": {
"$ref": "#/definitions/coordinateSystem"
}
},
"history": {
"$ref": "#/definitions/history"
}
}
},
"positionInfo": {
"type": "object",
"description": "Details about corresponding position file(s), e. g. GPS.",
"additionalProperties": false,
"properties": {
"references": {
"type": "array",
"items": {
"$ref": "#/definitions/fileReferenceWithMediaReference"
}
},
"history": {
"$ref": "#/definitions/history"
}
}
},
"mediaInfo": {
"type": "object",
"description": "Details about used media file(s).",
"additionalProperties": false,
"properties": {
"references": {
"type": "array",
"items": {
"$ref": "#/definitions/mediaReference"
}
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"references"
]
},
"metaInfo": {
"type": "array",
"description": "Array of attributes valid for parts of or the entire media file(s).",
"items": {
"$ref": "#/definitions/metaAttribute"
}
},
"objectInfo": {
"type": "array",
"description": "Array of labeled objects.",
"items": {
"$ref": "#/definitions/object"
}
}
},
"required": [
"versionInfo",
"projectInfo",
"mediaInfo",
"objectInfo",
"positionInfo",
"calibrationInfo",
"odometryInfo",
"metaInfo"
],
"definitions": {
"uuid": {
"type": "string",
"description": "36-hex-digit uuid string containing dashes, i. e. 8-4-4-4-12.",
"maxLength": 36,
"minLength": 36,
"format": "uuid"
},
"hash": {
"type": "object",
"description": "Describing hash value and method.",
"additionalProperties": false,
"properties": {
"value": {
"type": "string",
"description": "Hash value as string."
},
"method": {
"type": "string",
"description": "Used hashing method.",
"enum": [
"md5",
"sha-1",
"sha-224",
"sha-256",
"sha-384",
"sha-512",
"ripemd-160"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"value",
"method"
]
},
"agent": {
"type": "object",
"description": "Properties of a label agent.",
"additionalProperties": false,
"properties": {
"uuid": {
"$ref": "#/definitions/uuid"
},
"dateTime": {
"type": "string",
"description": "Date-time as defined by RFC3339.",
"format": "date-time"
}
},
"required": [
"dateTime"
]
},
"history": {
"type": "object",
"description": "Tracks the history of a, reference, attribute or object.",
"additionalProperties": false,
"properties": {
"created": {
"$ref": "#/definitions/agent"
},
"modified": {
"$ref": "#/definitions/agent"
}
},
"required": [
"modified",
"created"
]
},
"relation": {
"type": "object",
"description": "Relations from an object to other or objects.",
"properties": {
"history": {
"$ref": "#/definitions/history"
}
},
"anyOf": [
{
"type": "object",
"additionalProperties": true,
"properties": {
"uuidOfParent": {
"$ref": "#/definitions/uuid"
}
},
"required": [
"uuidOfParent"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"uuidOfSibling": {
"$ref": "#/definitions/uuid"
}
},
"required": [
"uuidOfSibling"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"uuidOfChild": {
"$ref": "#/definitions/uuid"
}
},
"required": [
"uuidOfChild"
]
}
]
},
"temporalValidity": {
"type": "object",
"description": "Temporal validity of an object or attribute.",
"additionalProperties": false,
"properties": {
"start": {
"type": "number",
"description": "Start of temporal validity. Must be accumulated over concecutive media files, e. g. frame 0 of media file following a 100 frames media file should be frame 101 etc.",
"minimum": 0
},
"end": {
"type": "number",
"description": "End of temporal validity. Must be accumulated over concecutive media files, e. g. frame 0 of media file following a 100 frames media file should be frame 101 etc.",
"minimum": 0
},
"unit": {
"type": "string",
"description": "Unit of temporal validity.",
"enum": [
"frames",
"ms",
"s"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"start",
"end",
"unit"
]
},
"temporalValiditySingle": {
"type": "object",
"description": "Temporal validity of an object or attribute.",
"additionalProperties": false,
"properties": {
"at": {
"type": "number",
"description": "Temporal validity. Must be accumulated over concecutive media files, e. g. frame 0 of media file following a 100 frames media file should be frame 101 etc.",
"minimum": 0
},
"unit": {
"type": "string",
"description": "Unit of temporal validity.",
"enum": [
"frames",
"ms",
"s"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"unit",
"at"
]
},
"coordinate1D": {
"type": "object",
"description": "Cartesian coordinate in 2d space.",
"additionalProperties": false,
"properties": {
"x": {
"type": "number",
"description": "X-coordinate."
},
"unit": {
"type": "string",
"description": "Unit of coordinates.",
"enum": [
"px",
"mm",
"cm",
"m"
]
}
},
"required": [
"x",
"unit"
]
},
"coordinate2D": {
"type": "object",
"description": "Cartesian coordinate in 2d space.",
"additionalProperties": false,
"properties": {
"x": {
"type": "number",
"description": "X-coordinate."
},
"y": {
"type": "number",
"description": "Y-coordinate."
},
"unit": {
"type": "string",
"description": "Unit of coordinates.",
"enum": [
"px",
"mm",
"cm",
"m"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"x",
"y",
"unit"
]
},
"coordinate3D": {
"type": "object",
"description": "Cartesian coordinate in 3d space.",
"additionalProperties": false,
"properties": {
"x": {
"type": "number",
"description": "X-coordinate."
},
"y": {
"type": "number",
"description": "Y-coordinate."
},
"z": {
"type": "number",
"description": "Z-coordinate."
},
"unit": {
"type": "string",
"description": "Unit of coordinates.",
"enum": [
"px",
"mm",
"cm",
"m"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"x",
"y",
"z",
"unit"
]
},
"coordinateSystem2D": {
"type": "object",
"description": "Defines a coordinate system in 2D space.",
"properties": {
"translation": {
"$ref": "#/definitions/coordinate2D"
},
"rotation": {
"$ref": "#/definitions/rotation2D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"translation",
"rotation"
]
},
"coordinateSystem3D": {
"type": "object",
"description": "Defines a coordinate system in 3D space.",
"properties": {
"translation": {
"$ref": "#/definitions/coordinate3D"
},
"rotation": {
"$ref": "#/definitions/rotation3D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"translation",
"rotation"
]
},
"coordinateSystem": {
"type": "object",
"description": "Defines a coordinate system.",
"properties": {
"nameOfMedia": {
"type": "string"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"nameOfMedia"
],
"anyOf": [
{
"type": "object",
"properties": {
"coordinateSystem2D": {
"$ref": "#/definitions/coordinateSystem2D"
}
},
"required": [
"coordinateSystem2D"
]
},
{
"type": "object",
"properties": {
"coordinateSystem3D": {
"$ref": "#/definitions/coordinateSystem3D"
}
},
"required": [
"coordinateSystem3D"
]
}
]
},
"rotation2D": {
"type": "object",
"description": "Defines rotation in 2D space.",
"additionalProperties": false,
"properties": {
"angle": {
"type": "number",
"description": "Rotation angle."
},
"unit": {
"type": "string",
"description": "Unit of angle.",
"enum": [
"deg",
"rad"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"angle",
"unit"
]
},
"rotation3D": {
"type": "object",
"description": "Defines rotation in 3D space.",
"additionalProperties": false,
"properties": {
"x": {
"type": "number",
"description": "Rotation around x axis.",
"maximum": 360,
"minimum": -360
},
"y": {
"type": "number",
"description": "Rotation around y axis.",
"maximum": 360,
"minimum": -360
},
"z": {
"type": "number",
"description": "Rotation around z axis.",
"maximum": 360,
"minimum": -360
},
"unit": {
"type": "string",
"enum": [
"deg",
"rad"
]
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"x",
"y",
"z",
"unit"
]
},
"shape2D": {
"type": "object",
"description": "defines 2D shapes of an 2D object",
"required": [],
"anyOf": [
{
"type": "object",
"additionalProperties": true,
"properties": {
"line2D": {
"type": "object",
"description": "Defines a line from two points.",
"additionalProperties": false,
"properties": {
"start": {
"$ref": "#/definitions/coordinate2D"
},
"end": {
"$ref": "#/definitions/coordinate2D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"start",
"end"
]
}
},
"required": [
"line2D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"box2D": {
"type": "object",
"description": "Defines a bounding box in 2D space.",
"additionalProperties": false,
"properties": {
"topLeft": {
"$ref": "#/definitions/coordinate2D"
},
"bottomRight": {
"$ref": "#/definitions/coordinate2D"
},
"rotation": {
"$ref": "#/definitions/rotation2D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"topLeft",
"bottomRight",
"rotation"
]
}
},
"required": [
"box2D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"points2D": {
"type": "array",
"description": "Array of points in 2D space.",
"items": {
"$ref": "#/definitions/coordinate2D"
}
}
},
"required": [
"points2D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"mask2D": {
"type": "string",
"description": "Run-length encoded (RLE)"
}
},
"required": [
"mask2D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"polyLine2D": {
"type": "array",
"description": "Open-ended poly line in 2D space.",
"items": {
"$ref": "#/definitions/coordinate2D"
}
}
},
"required": [
"polyLine2D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"polygon2D": {
"type": "array",
"description": "Closed polygon in 2D space.",
"items": {
"$ref": "#/definitions/coordinate2D"
}
}
},
"required": [
"polygon2D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"ellipse2D": {
"type": "object",
"description": "Ellipse in 2D space.",
"additionalProperties": false,
"properties": {
"center": {
"$ref": "#/definitions/coordinate2D"
},
"semi-major": {
"$ref": "#/definitions/coordinate1D"
},
"semi-minor": {
"$ref": "#/definitions/coordinate1D"
},
"rotation": {
"$ref": "#/definitions/rotation2D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"center",
"semi-major",
"semi-minor",
"rotation"
]
}
},
"required": [
"ellipse2D"
]
}
]
},
"shape3D": {
"type": "object",
"description": "defines 3D shapes of an 3D object",
"required": [],
"anyOf": [
{
"type": "object",
"additionalProperties": true,
"properties": {
"line3D": {
"type": "object",
"description": "Defines a line from 2 points",
"additionalProperties": false,
"properties": {
"start": {
"$ref": "#/definitions/coordinate3D"
},
"end": {
"$ref": "#/definitions/coordinate3D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"start",
"end"
]
}
},
"required": [
"line3D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"plane3D": {
"type": "object",
"description": "Defines a plane from 3 vectors",
"additionalProperties": false,
"properties": {
"vectorP": {
"$ref": "#/definitions/coordinate3D"
},
"vectorU": {
"$ref": "#/definitions/coordinate3D"
},
"vectorV": {
"$ref": "#/definitions/coordinate3D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"vectorV",
"vectorU",
"vectorP"
]
}
},
"required": [
"plane3D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"points3D": {
"type": "array",
"description": "Array of points in 3D space.",
"items": {
"$ref": "#/definitions/coordinate3D"
}
}
},
"required": [
"points3D"
]
},
{
"type": "object",
"additionalProperties": true,
"properties": {
"box3D": {
"type": "object",
"description": "Defines a bounding box in 3D space.",
"additionalProperties": false,
"properties": {
"center": {
"$ref": "#/definitions/coordinate3D"
},
"dimension": {
"$ref": "#/definitions/coordinate3D"
},
"rotation": {
"$ref": "#/definitions/rotation3D"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"rotation",
"center",
"dimension"
]
}
},
"required": [
"box3D"
]
}
]
},
"shape": {
"type": "object",
"description": "defines different shapes of an object",
"properties": {
"history": {
"$ref": "#/definitions/history"
}
},
"required": [],
"anyOf": [
{
"$ref": "#/definitions/shape2D"
},
{
"$ref": "#/definitions/shape3D"
}
]
},
"shapeGroup": {
"type": "object",
"description": "Defines a shape group, i. e. a combination of shapes.",
"additionalProperties": false,
"properties": {
"uuid": {
"$ref": "#/definitions/uuid"
},
"instructions": {
"type": "string",
"description": "Optional freetext description on how shapes must be interpreted."
},
"validity": {
"$ref": "#/definitions/temporalValiditySingle"
},
"shapes": {
"type": "array",
"minItems": 1,
"items": {
"$ref": "#/definitions/shape"
}
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"validity",
"shapes",
"uuid"
]
},
"mediaReference": {
"type": "object",
"description": "Details of a reference to a media file.",
"additionalProperties": false,
"properties": {
"name": {
"type": "string",
"description": "Unique name of media file."
},
"url": {
"type": "string",
"description": "URL pointing to media file.",
"format": "uri"
},
"type": {
"type": "string",
"description": "media MIME type",
"enum": [
"image/jpeg",
"image/png",
"video/mp4",
"video/x-msvideo",
"pointcloud/pcl"
]
},
"codec": {
"type": "string",
"description": "media codec"
},
"duration": {
"type": "number",
"description": "duration of mediafile in seconds, -1 if not applicable",
"minimum": -1
},
"framerate": {
"type": "integer",
"description": "framerate of media file, -1 if not applicable",
"minimum": -1
},
"width": {
"type": "integer",
"description": "spatial horizontal resolution, -1 if not applicable",
"minimum": -1
},
"height": {
"type": "integer",
"description": "spatial vertical resolution, -1 if not applicable",
"minimum": -1
},
"hash": {
"$ref": "#/definitions/hash"
},
"history": {
"$ref": "#/definitions/history"
}
},
"required": [
"name",
"url",
"type"
]
},
"fileReference": {
"type": "object",
"description": "Details of a reference to a file.",
"additionalProperties": false,
"properties": {
"name": {
"type": "string",