{
  "xrai_mapping_version": "1.2",
  "id": "rgbd-huedepth-v1",
  "rfc": "0009",
  "source": {
    "kind": "rgbd-huedepth",
    "producer_hint": "iPhone LiDAR + RGB camera, encoded as HueDepth (depth → hue-mapped RGB) for video-codec transport",
    "platform": ["iOS-15+ with LiDAR", "Record3D capture", "MetavidoLiveARKit feeder"],
    "external_refs": ["https://record3d.app/", "specs/003-hologram-telepresence/spec.md"]
  },
  "ontology": "xrai://ontology/v1",
  "rules": [
    {
      "match": { "frame_kind": "rgbd_pair" },
      "emit": {
        "entity_path": "/hologram/{stream_id}",
        "archetype": "Hologram",
        "components": {
          "rgb_image": {
            "from": "color_uri",
            "as": "uri_passthrough"
          },
          "depth_image": {
            "from": "depth_uri",
            "as": "huedepth_passthrough",
            "metadata": { "encoding": "huedepth", "min_depth_m": 0.2, "max_depth_m": 5.0 }
          },
          "pose_6dof": {
            "from": "{position, rotation, intrinsics.cameraMat}",
            "as": "record3d_pose_to_xrai"
          },
          "stencil_uri": {
            "from": "alpha_uri",
            "as": "uri_passthrough",
            "optional": true
          }
        },
        "timeline": {
          "log_time": { "from": "frame_ts_ns", "as": "ns" },
          "frame_index": { "from": "frame_index", "as": "int64" }
        }
      }
    },
    {
      "match": { "frame_kind": "intrinsics_only" },
      "emit": {
        "entity_path": "/hologram/{stream_id}/camera",
        "archetype": "Anchor",
        "components": {
          "metadata": {
            "from": "{fx, fy, cx, cy, w, h}",
            "as": "dict_passthrough"
          }
        }
      }
    }
  ],
  "transforms_used": [
    "uri_passthrough",
    "huedepth_passthrough",
    "record3d_pose_to_xrai",
    "dict_passthrough",
    "ns",
    "int64"
  ],
  "reversible": true,
  "trust": "T1-battle-tested",
  "tier_owned": [15, 16],
  "_note": "RGBD-HueDepth → Hologram archetype. Owns T15 (RGBD image) + T16 (RGBD-stencil hologram) ingestion. Reversible: HueDepth pixels round-trip back to depth meters via hue→depth LUT. Verified in CVPR 2026 paper §depth-codec."
}