{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:ZPWREMERBUGBWXQ3I5NWSHB6M7","short_pith_number":"pith:ZPWREMER","schema_version":"1.0","canonical_sha256":"cbed1230910d0c1b5e1b475b691c3e67c13006323c4be756a80fe2b7fb4ebf66","source":{"kind":"arxiv","id":"1709.10354","version":2},"attestation_state":"computed","paper":{"title":"A Variational Approach to Shape-from-shading Under Natural Illumination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Daniel Cremers, Fabien Castan, Jean-Denis Durou, Jean M\\'elou, Yvain Qu\\'eau","submitted_at":"2017-09-29T11:58:13Z","abstract_excerpt":"A numerical solution to shape-from-shading under natural illumination is presented. It builds upon an augmented Lagrangian approach for solving a generic PDE-based shape-from-shading model which handles directional or spherical harmonic lighting, orthographic or perspective projection, and greylevel or multi-channel images. Real-world applications to shading-aware depth map denoising, refinement and completion are presented."},"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":"1709.10354","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-09-29T11:58:13Z","cross_cats_sorted":[],"title_canon_sha256":"70666876c2533786ead4c53e30d7ed7482626011a19550e8fed6603198e33458","abstract_canon_sha256":"7fe1b356bd6fa9bf7e8a296912ec1eb7178128a0de97406455939ddf4ce3d8ae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:01.113717Z","signature_b64":"jHOOzDTipd62Fz09KIU8UsrTBMdrJMQKZx/lkMim9DwSC6SFT1FY6LbQbDW6QjC1txUFMP+y/Y7hzz4WL4ZJCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cbed1230910d0c1b5e1b475b691c3e67c13006323c4be756a80fe2b7fb4ebf66","last_reissued_at":"2026-05-18T00:29:01.113068Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:01.113068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Variational Approach to Shape-from-shading Under Natural Illumination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Daniel Cremers, Fabien Castan, Jean-Denis Durou, Jean M\\'elou, Yvain Qu\\'eau","submitted_at":"2017-09-29T11:58:13Z","abstract_excerpt":"A numerical solution to shape-from-shading under natural illumination is presented. It builds upon an augmented Lagrangian approach for solving a generic PDE-based shape-from-shading model which handles directional or spherical harmonic lighting, orthographic or perspective projection, and greylevel or multi-channel images. Real-world applications to shading-aware depth map denoising, refinement and completion are presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.10354","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1709.10354","created_at":"2026-05-18T00:29:01.113181+00:00"},{"alias_kind":"arxiv_version","alias_value":"1709.10354v2","created_at":"2026-05-18T00:29:01.113181+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.10354","created_at":"2026-05-18T00:29:01.113181+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZPWREMERBUGB","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZPWREMERBUGBWXQ3","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZPWREMER","created_at":"2026-05-18T12:31:59.375834+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/ZPWREMERBUGBWXQ3I5NWSHB6M7","json":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7.json","graph_json":"https://pith.science/api/pith-number/ZPWREMERBUGBWXQ3I5NWSHB6M7/graph.json","events_json":"https://pith.science/api/pith-number/ZPWREMERBUGBWXQ3I5NWSHB6M7/events.json","paper":"https://pith.science/paper/ZPWREMER"},"agent_actions":{"view_html":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7","download_json":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7.json","view_paper":"https://pith.science/paper/ZPWREMER","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1709.10354&json=true","fetch_graph":"https://pith.science/api/pith-number/ZPWREMERBUGBWXQ3I5NWSHB6M7/graph.json","fetch_events":"https://pith.science/api/pith-number/ZPWREMERBUGBWXQ3I5NWSHB6M7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7/action/storage_attestation","attest_author":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7/action/author_attestation","sign_citation":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7/action/citation_signature","submit_replication":"https://pith.science/pith/ZPWREMERBUGBWXQ3I5NWSHB6M7/action/replication_record"}},"created_at":"2026-05-18T00:29:01.113181+00:00","updated_at":"2026-05-18T00:29:01.113181+00:00"}