person_reid:
  ros__parameters:
    model_path: ''            # path to MobileNetV2+projection ONNX file (empty = histogram fallback)
    match_threshold: 0.75     # cosine similarity threshold for re-ID match
    max_identity_age_s: 300.0 # seconds before unseen identity is pruned
    publish_hz: 5.0           # publication rate (Hz)
