{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RMIDLITMLSRTOYKWTCFVURXKTJ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"e40cac3d90cfb280c747292ad358c6accd051398f87be42eb314d096462c3775","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-04-01T19:41:33Z","title_canon_sha256":"d4f0e2aec1b083cc1c5a81074175e49dbbb1d3ed600dd8147922af0608aa1ba6"},"schema_version":"1.0","source":{"id":"2404.01448","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.01448","created_at":"2026-07-05T08:05:57Z"},{"alias_kind":"arxiv_version","alias_value":"2404.01448v2","created_at":"2026-07-05T08:05:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.01448","created_at":"2026-07-05T08:05:57Z"},{"alias_kind":"pith_short_12","alias_value":"RMIDLITMLSRT","created_at":"2026-07-05T08:05:57Z"},{"alias_kind":"pith_short_16","alias_value":"RMIDLITMLSRTOYKW","created_at":"2026-07-05T08:05:57Z"},{"alias_kind":"pith_short_8","alias_value":"RMIDLITM","created_at":"2026-07-05T08:05:57Z"}],"graph_snapshots":[{"event_id":"sha256:d268f8dd38c507870917c924b3928c6b5b49201979f3f326880b3a1a9f9fac48","target":"graph","created_at":"2026-07-05T08:05:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2404.01448/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cone-beam computed tomography (CBCT) is widely used in image-guided radiotherapy. Reconstructing CBCTs from limited-angle acquisitions (LA-CBCT) is highly desired for improved imaging efficiency, dose reduction, and better mechanical clearance. LA-CBCT reconstruction, however, suffers from severe under-sampling artifacts, making it a highly ill-posed inverse problem. Diffusion models can generate data/images by reversing a data-noising process through learned data distributions; and can be incorporated as a denoiser/regularizer in LA-CBCT reconstruction. In this study, we developed a diffusion","authors_text":"Hua-Chieh Shao, Jiacheng Xie, You Zhang, Yunxiang Li","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-04-01T19:41:33Z","title":"Prior Frequency Guided Diffusion Model for Limited Angle (LA)-CBCT Reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.01448","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:360677e645dea03ca1d595a5752a6c2f09ae06033e9cd3a492d78cc02f761050","target":"record","created_at":"2026-07-05T08:05:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"e40cac3d90cfb280c747292ad358c6accd051398f87be42eb314d096462c3775","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-04-01T19:41:33Z","title_canon_sha256":"d4f0e2aec1b083cc1c5a81074175e49dbbb1d3ed600dd8147922af0608aa1ba6"},"schema_version":"1.0","source":{"id":"2404.01448","kind":"arxiv","version":2}},"canonical_sha256":"8b1035a26c5ca3376156988b5a46ea9a59bfe332ed80a8d2aedd5f0c82f2755c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b1035a26c5ca3376156988b5a46ea9a59bfe332ed80a8d2aedd5f0c82f2755c","first_computed_at":"2026-07-05T08:05:57.883483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:05:57.883483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GUVgvfcBSDgO1QALG2Y3cFPoq4FbDTfJ8PAGhpffHPaEdGZPhC+VmCwlr/pIKX1oKNkSnRC/nWYoP83jiVPaBw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:05:57.883911Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.01448","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:360677e645dea03ca1d595a5752a6c2f09ae06033e9cd3a492d78cc02f761050","sha256:d268f8dd38c507870917c924b3928c6b5b49201979f3f326880b3a1a9f9fac48"],"state_sha256":"af332ea0cdfe9187fde36d5706f7a9c325112af303e4da96ba5906ed68beb652"}