MODEL GUIDES
Prediction
Use task_type predict with current and previous scene context to predict likely future spatial states.
What it answers
Given where things were and are, where do they go next?
task_type: predict
What to send
input.point_cloud_sceneobjectCurrent scene state.
input.previous_point_cloud_sceneobjectPrior state. Without it there is no motion history to extrapolate.
Every field on the request schema is still accepted; these are the ones this task depends on.
What comes back
spatial_prediction.objectsProjected positions per tracked object.
spatial_prediction.confidencePer-object confidence.
spatial_prediction.horizonHow far ahead the estimate reaches.
Example
Terminal
$ curl https://fourechelon.com/api/v1/responses \ -H "Authorization: Bearer $FOUR_ECHELON_API_KEY" \ -H "Content-Type: application/json" \ -d '{$ "model": "rowe-1.0",$ "input": {$ "task_type": "predict",$ "previous_point_cloud_scene": { "point_clouds": [] },$ "point_cloud_scene": { "point_clouds": [] }$ }$ }'Worth knowing
Prediction needs two states. Sending only the current scene returns present-state reasoning, not a forecast.