Pith Number

pith:CXAD23ZW

pith:2026:CXAD23ZW6D4LREKD7MUNJCSCYM

not attested not anchored not stored refs pending

FrequencyCT: Frequency Domain Self-supervised Low-dose CT Denoising

Chong Chen, Guoquan Wei, Liu Shi, Qiegen Liu

Frequency-domain anchoring and perturbation generate pseudo-labels that train a denoiser on noisy low-dose CT data alone.

arxiv:2605.10583 v2 · 2026-05-11 · cs.CV

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\pithnumber{CXAD23ZW6D4LREKD7MUNJCSCYM}

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Record completeness

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4 Citations open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

this work proposes FrequencyCT, the first zero-shot self-supervised method for pseudo-label generation in the frequency domain for low-dose CT denoising. [...] Evaluation results on multiple public and real-world datasets confirm the clinical application potential of this research, which will have a revolutionary impact on the field of denoising.

C2weakest assumption

Leveraging the characteristic of the frequency domain that largely isolates noise from clean signals, a regional low-frequency anchoring technique is proposed.

C3one line summary

FrequencyCT generates pseudo-labels via regional low-frequency anchoring, phase-preserving modulation, and high-frequency mask perturbation for self-supervised low-dose CT denoising.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-28T01:04:42.141554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c03d6f36f0f8b89143fb28d48a42c3381e0be4981e8774f63a9b4de56f7a5f

Aliases

arxiv: 2605.10583 · arxiv_version: 2605.10583v2 · doi: 10.48550/arxiv.2605.10583 · pith_short_12: CXAD23ZW6D4L · pith_short_16: CXAD23ZW6D4LREKD · pith_short_8: CXAD23ZW

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CXAD23ZW6D4LREKD7MUNJCSCYM \
  | 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: 15c03d6f36f0f8b89143fb28d48a42c3381e0be4981e8774f63a9b4de56f7a5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37593704cb076a7ff4ebce92492c49a4a23cbf947d16599a3df5eb7ecc6b5d4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-11T13:55:03Z",
    "title_canon_sha256": "32b0e6b89080a97ccd25cb67f8456b140b01a1fd9c2094234c2249aa6042886a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.10583",
    "kind": "arxiv",
    "version": 2
  }
}