yongheeoh/penvmap

Real-world Polarimetric Environment Map Dataset

A real-world dataset of full-sphere HDR RGB polarization environment maps at 2048 × 1024 resolution, with processed EXRs, RAW captures, calibration files and masks.

Project page · Code · Contact

Collections

Collection	Released scenes	Scene IDs	Measured components
full_stokes	97: 30 indoor, 67 outdoor	1–100	S0, S1, S2, S3
linear_stokes	9: 4 indoor, 5 outdoor	1–9	S0, S1, S2

Linear S3 is not measured; stored zeros are placeholders (s3_measured=false). IDs are local to each collection. Full-Stokes scenes 74, 87 and 98 are withheld for privacy; their metadata rows have empty data paths. Contact the author for access inquiries.

Folder structure

{full_stokes,linear_stokes}/
  calibration/
  penvmap/{thetaphi,duff,s2l2}/{scene_id}.exr
  preview/{s0,s1n,s2n,s3n,aolpn}/{scene_id}.jpg
  mask/{saturation,privacy,invalid}/{scene_id}.png
  raw/{scene_id}/
  metadata.csv
load_scene.py
requirements.txt
README.md
LICENSE
SHA256SUMS

Metadata paths are relative to each collection directory. Use EXRs for numerical analysis; JPEGs are previews. In masks, 255 marks the condition and 0 means unflagged.

Usage

From the dataset root:

pip install -r requirements.txt
python load_scene.py --root . --subset full_stokes --scene-id 1
python load_scene.py --root . --subset linear_stokes --scene-id 1

from load_scene import load_scene

scene = load_scene(".", 1, subset="full_stokes")
stokes = scene["data"]  # float32, (1024, 2048, 3, 4): RGB × S0–S3
valid = ~(scene["saturation_mask"] | scene["privacy_mask"] | scene["invalid_mask"])

The default representation is thetaphi; use representation="duff" or "s2l2" to select another. S2L2 arrays have shape (1024, 2048, 3, 12).

License

Released dataset assets, including RAW, processed data and calibration, are licensed under CC BY 4.0; see LICENSE. Withheld data are excluded. Software licensing is separate.

Citation

@inproceedings{oh2026penvmap,
  author    = {Oh, Yonghee and Maeda, Ryota and Moon, Yunseong and Baek, Seung-Hwan},
  title     = {Real-world Polarimetric Environment Map Dataset},
  booktitle = {SIGGRAPH Asia 2026 Conference Papers},
  year      = {2026},
  doi       = {10.1145/3829340.3842262}
}