Duplicate from pablovela5620/arkitscenes-rrd

Co-authored-by: pablo vela <pablovela5620@users.noreply.huggingface.co>

README.md

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+---
+license: other
+license_name: arkitscenes
+license_link: https://github.com/apple/ARKitScenes/blob/main/LICENSE
+pretty_name: ARKitScenes RRD
+tags:
+  - rerun
+  - rrd
+  - 3d
+  - depth
+  - slam
+  - indoor-scenes
+  - multimodal
+---
+
+# ARKitScenes → Rerun (.rrd)
+
+5,015 [ARKitScenes](https://github.com/apple/ARKitScenes) indoor iPhone/iPad captures,
+converted into **layered [Rerun](https://rerun.io) recordings** — including the data that
+exists only inside the dataset's `.mov` containers and appears in no published asset:
+
+- **60 Hz camera poses** (ARKit `visionTransform`, 6× denser than the published 10 Hz trajectory) —
+  validated against the published trajectory per sequence and used when a rigid fit agrees within
+  3° / 10 cm (`pose_source = mebx_stream_4_vision_transform`), otherwise the published 10 Hz
+  trajectory is slerp-resampled onto the frame grid (`pose_source = lowres_traj_slerp`)
+- **100 Hz raw IMU** (accelerometer, gyroscope, fused attitude) — published nowhere else
+- **Per-frame 8-coefficient lens distortion** and **wide↔ultrawide stereo extrinsics** (~1.2 cm baseline)
+- **Per-camera clock recovery** (the two cameras' PTS origins differ by up to ~100 ms)
+- Orientation **measured from gravity** (the metadata `sky_direction` label is wrong for ~60% of
+  sampled sequences; the label is kept as a property)
+- Full-rate **60 fps video as AV1 `VideoStream`** (`av1_nvenc -preset p7 -rc vbr -cq 30`,
+  SSIM ≈ 0.984 vs source), ARKit LiDAR depth + laser GT depth + confidence, annotated room mesh
+  and oriented 3D boxes
+
+## Structure
+
+Layer-first: one directory per layer, one file per sequence. This makes bulk catalog
+registration a single `register_prefix` call per layer, and lets any layer be fetched,
+regenerated, or re-registered without touching the rest.
+
+```
+base/<video_id>.rrd            # recording properties (queryable columns) + embedded blueprint
+calibration/<video_id>.rrd     # 60 Hz world_T_rig, pinholes, lens distortion, stereo extrinsics
+video_wide/<video_id>.rrd      # 1920×1440 @ 60 fps AV1
+video_ultrawide/<video_id>.rrd
+depth/<video_id>.rrd           # ARKit LiDAR depth + laser GT depth + confidence
+imu/<video_id>.rrd             # 100 Hz accel / gyro / attitude
+gt/<video_id>.rrd              # annotated mesh + oriented 3D boxes
+blueprints/                    # dataset-level viewer layouts (portrait default, landscape)
+```
+
+The seven layers share one `recording_id` per sequence: a Rerun catalog stacks them into a single
+recording. GT boxes live at stable slot paths (`/world/gt/boxes/box_00` …) shared across all
+sequences — Apple's per-object annotation uid rides along as a `uid` component on each box — so
+the dataset's merged schema stays narrow no matter how many sequences are registered.
+Recording properties (`video_id`, `visit_id`, `split`, `pose_source`, pose-fit residuals, clock
+offsets and dispersion, orientation source and quarter-turns, encoder provenance, …) surface as
+queryable segment-table columns.
+
+## Use
+
+```bash
+# one full sequence (all seven layers)
+hf download pablovela5620/arkitscenes-rrd --repo-type dataset --include "*/40753679.rrd" --local-dir .
+
+# one layer for every sequence (e.g. all ground truth)
+hf download pablovela5620/arkitscenes-rrd --repo-type dataset --include "gt/*" --local-dir .
+
+# view a sequence (opens with its embedded blueprint)
+rerun */40753679.rrd
+
+# or serve a catalog and register everything (rerun >= 0.34)
+rerun server --port 51234
+# then one register_prefix per layer directory — see the conversion pipeline below
+```
+
+Conversion pipeline (download → mebx decode → clock recovery → ingest → verify):
+[`packages/arkitscenes-download`](https://github.com/pablovela5620/examples-monorepo) — runs
+locally or fans out on Modal (this dataset was produced on Modal L4 workers; per-recording
+encoder provenance is embedded).
+
+## License & attribution
+
+The underlying data is Apple's ARKitScenes, redistributed **with modifications** (format
+conversion to RRD) under the
+[ARKitScenes license](https://github.com/apple/ARKitScenes/blob/main/LICENSE) — refer to the
+license text for the exact terms of use. If you use ARKitScenes, cite:
+
+```bibtex
+@inproceedings{baruch2021arkitscenes,
+  title={{ARK}itScenes - A Diverse Real-World Dataset For 3D Indoor Scene Understanding Using Mobile {RGB}-D Data},
+  author={Gilad Baruch and Zhuoyuan Chen and Afshin Dehghan and Tal Dimry and Yuri Feigin and Peter Fu and Thomas Gebauer and Brandon Joffe and Daniel Kurz and Arik Schwartz and Elad Shulman},
+  booktitle={NeurIPS Datasets and Benchmarks},
+  year={2021}
+}
+```
+
+Of the 5,047 upstream captures, 24 ship without mesh/annotation/trajectory and 8 failed the
+pipeline's transcode-integrity gates; both sets are excluded.

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