14. Señales para visión artificial — 15.85 14.4.10 Contrato BoundaryEvent

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15.85 14.4.10 Contrato `BoundaryEvent`

Campo	Tipo/regla
`boundaryEventId`	string immutable within attempt
`attemptId`	string
`eventType`	BoundaryEvent vocabulary or extension namespace
`nominalTimestampNs`	int64\|null; posterior median or selected representative
`earliestTimestampNs`	int64 inclusive\|null
`latestTimestampNs`	int64 inclusive\|null
`posteriorStdMs`	float\|null
`probability`	float 0..1 calibrated for the event hypothesis
`direction`	enter\|exit\|peak\|instant\|unknown
`laneIds`	array
`bodyRegionIds`	array
`contactEpisodeIds`	array
`sourceContactSet`	array
`targetContactSet`	array
`evidence`	array<{signalId,value,unit,quality,weight,provenance}>
`detectionMode`	OnlineCausal\|OfflineSmoothed\|Manual\|SensorTriggered\|Fused
`revision`	integer; boundaries may be revised before timeline sealing
`qualityFlags`	array
`provenance`	model/rule/annotator versions, calibration IDs and timestamps

15.85.1 Incertidumbre temporal

earliestTimestampNs <= nominalTimestampNs <= latestTimestampNs

El intervalo puede representar blur, FPS, latencia, oclusión o desacuerdo de anotadores. Reducirlo artificialmente al centro de un frame produce precisión ficticia.