{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:33KHEW7T7OBU2QMOJNHQ5A3SJS","short_pith_number":"pith:33KHEW7T","schema_version":"1.0","canonical_sha256":"ded4725bf3fb834d418e4b4f0e83724ca24162dc232eab0d2ebb921dcc9da323","source":{"kind":"arxiv","id":"2601.01200","version":3},"attestation_state":"computed","paper":{"title":"Objective Quality Assessment of Point Clouds Using Multi-scale Implicit Structural Similarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Fuzheng Yang, Junhui Hou, Shuai Wan, Siyu Ren, Yuezhe Zhang, Zhang Chen","submitted_at":"2026-01-03T14:58:52Z","abstract_excerpt":"The unstructured and irregular nature of points poses a significant challenge for accurate point cloud quality assessment (PCQA), particularly in establishing accurate perceptual feature correspondence. To tackle this, we propose the Multi-scale Implicit Structural Similarity Measurement (MS-ISSM). Unlike traditional point-to-point matching, MS-ISSM utilizes radial basis function (RBF) to represent local features continuously, transforming distortion measurement into a comparison of implicit function coefficients. This approach effectively circumvents matching errors inherent in irregular data"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2601.01200","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-01-03T14:58:52Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"74dbf4f15b9da02e886fa01eeeab6790243b413ea17a6c58960b4fcbab78d565","abstract_canon_sha256":"f2e593b4c43b01d067d0a4dad756f1d336518a0700daa41510f1a33a2008d3e8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:11:18.919945Z","signature_b64":"A0ih3ijwc47cbPXCwXX+aQwsTiQ3M63XfUtQSZ/P8Lb4LrRGH9e2j6ZJA7d5zR5lQq5i+VNhOtCEuLTZc44cAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ded4725bf3fb834d418e4b4f0e83724ca24162dc232eab0d2ebb921dcc9da323","last_reissued_at":"2026-06-19T16:11:18.919498Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:11:18.919498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Objective Quality Assessment of Point Clouds Using Multi-scale Implicit Structural Similarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Fuzheng Yang, Junhui Hou, Shuai Wan, Siyu Ren, Yuezhe Zhang, Zhang Chen","submitted_at":"2026-01-03T14:58:52Z","abstract_excerpt":"The unstructured and irregular nature of points poses a significant challenge for accurate point cloud quality assessment (PCQA), particularly in establishing accurate perceptual feature correspondence. To tackle this, we propose the Multi-scale Implicit Structural Similarity Measurement (MS-ISSM). Unlike traditional point-to-point matching, MS-ISSM utilizes radial basis function (RBF) to represent local features continuously, transforming distortion measurement into a comparison of implicit function coefficients. This approach effectively circumvents matching errors inherent in irregular data"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.01200","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2601.01200/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2601.01200","created_at":"2026-06-19T16:11:18.919557+00:00"},{"alias_kind":"arxiv_version","alias_value":"2601.01200v3","created_at":"2026-06-19T16:11:18.919557+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.01200","created_at":"2026-06-19T16:11:18.919557+00:00"},{"alias_kind":"pith_short_12","alias_value":"33KHEW7T7OBU","created_at":"2026-06-19T16:11:18.919557+00:00"},{"alias_kind":"pith_short_16","alias_value":"33KHEW7T7OBU2QMO","created_at":"2026-06-19T16:11:18.919557+00:00"},{"alias_kind":"pith_short_8","alias_value":"33KHEW7T","created_at":"2026-06-19T16:11:18.919557+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS","json":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS.json","graph_json":"https://pith.science/api/pith-number/33KHEW7T7OBU2QMOJNHQ5A3SJS/graph.json","events_json":"https://pith.science/api/pith-number/33KHEW7T7OBU2QMOJNHQ5A3SJS/events.json","paper":"https://pith.science/paper/33KHEW7T"},"agent_actions":{"view_html":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS","download_json":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS.json","view_paper":"https://pith.science/paper/33KHEW7T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2601.01200&json=true","fetch_graph":"https://pith.science/api/pith-number/33KHEW7T7OBU2QMOJNHQ5A3SJS/graph.json","fetch_events":"https://pith.science/api/pith-number/33KHEW7T7OBU2QMOJNHQ5A3SJS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS/action/storage_attestation","attest_author":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS/action/author_attestation","sign_citation":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS/action/citation_signature","submit_replication":"https://pith.science/pith/33KHEW7T7OBU2QMOJNHQ5A3SJS/action/replication_record"}},"created_at":"2026-06-19T16:11:18.919557+00:00","updated_at":"2026-06-19T16:11:18.919557+00:00"}