Pith Number

pith:RAVAFULX

pith:2026:RAVAFULXGS4ES73XLTBS2XQBO4

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P2GS: Physical Prior-guided Gaussian Splatting for Photometrically Consistent Urban Reconstruction

Hidehisa Arai, Hironobu Fujiyoshi, Kota Shimomura, Takayoshi Yamashita, Tsubasa Takahashi

P2GS jointly decomposes a view-invariant linear HDR radiance field, per-view exposure scales, and tone-mapping functions from LDR images to fix photometric inconsistencies in 3D Gaussian Splatting for urban scenes.

arxiv:2605.16925 v1 · 2026-05-16 · cs.CV

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Claims

C1strongest claim

P2GS jointly decomposes a view-invariant linear HDR radiance field, per-view exposure scales, and tone-mapping functions from only LDR images without HDR supervision, yielding a radiance field robust to inter-camera illumination differences while preserving real-time efficiency.

C2weakest assumption

The physical image-formation process can be accurately inverted by jointly optimizing a shared linear HDR radiance field together with per-view exposure scales and tone-mapping functions from LDR observations alone, with relative-exposure consistency and HDR-domain regularization sufficient to prevent degenerate solutions.

C3one line summary

P2GS jointly decomposes LDR images into a view-invariant linear HDR radiance field, per-view exposure scales, and tone-mapping functions without HDR supervision to enforce photometric consistency in urban Gaussian Splatting.

References

28 extracted · 28 resolved · 0 Pith anchors

[1] Hdr-gs: Efficient high dynamic range novel view synthesis at 1000x speed via gaussian splatting 2024

[2] Pseudo- simulation for autonomous driving 2025

[3] Hallucinated neural radi- ance fields in the wild 2022

[4] Periodic vibration gaussian: Dynamic urban scene reconstruction and real-time rendering

[5] Omnire: Omni urban scene reconstruction 2025

Receipt and verification

First computed	2026-05-20T00:03:30.999579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

882a02d17734b8497f775cc32d5e017730fd1971c345894c9491876192747aa2

Aliases

arxiv: 2605.16925 · arxiv_version: 2605.16925v1 · doi: 10.48550/arxiv.2605.16925 · pith_short_12: RAVAFULXGS4E · pith_short_16: RAVAFULXGS4ES73X · pith_short_8: RAVAFULX

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RAVAFULXGS4ES73XLTBS2XQBO4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 882a02d17734b8497f775cc32d5e017730fd1971c345894c9491876192747aa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1f058ddf872056d8be6f2f1680df7fe34c1b0477c468c2e15f2844bc3c7bf37",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-16T10:36:23Z",
    "title_canon_sha256": "9a97fe93b1816105b7331aa99f96cf998d4cf03f87939ccd2baae3c54cda04dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16925",
    "kind": "arxiv",
    "version": 1
  }
}