{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:6MQOWCAMKMOBBBVLLQEXJCOGSA","short_pith_number":"pith:6MQOWCAM","schema_version":"1.0","canonical_sha256":"f320eb080c531c1086ab5c097489c6900d41b9f84a5fee6364f7a63586116006","source":{"kind":"arxiv","id":"2105.02875","version":1},"attestation_state":"computed","paper":{"title":"Deep Polarization Imaging for 3D shape and SVBRDF Acquisition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.GR","cs.LG"],"primary_cat":"cs.CV","authors_text":"Abhijeet Ghosh, Valentin Deschaintre, Yiming Lin","submitted_at":"2021-05-06T17:58:43Z","abstract_excerpt":"We present a novel method for efficient acquisition of shape and spatially varying reflectance of 3D objects using polarization cues. Unlike previous works that have exploited polarization to estimate material or object appearance under certain constraints (known shape or multiview acquisition), we lift such restrictions by coupling polarization imaging with deep learning to achieve high quality estimate of 3D object shape (surface normals and depth) and SVBRDF using single-view polarization imaging under frontal flash illumination. In addition to acquired polarization images, we provide our d"},"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":"2105.02875","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-06T17:58:43Z","cross_cats_sorted":["cs.GR","cs.LG"],"title_canon_sha256":"6076370a85dad6540c93787c253311fd4d62be408a80f7456df2d4d6d4609718","abstract_canon_sha256":"5ebacd03cdc5ecb923898b9caabc0efdfaf58cb903e9b2e4d3c1187900192374"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:38:11.276376Z","signature_b64":"YnmmSCpNS64+7+3h6oplMWLrGqS8r4Ib5uB1u1tKeLj7rZ01GZtW0HGX7HzObG2tyxstU1YoI9p5m8Rt5gMaDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f320eb080c531c1086ab5c097489c6900d41b9f84a5fee6364f7a63586116006","last_reissued_at":"2026-07-05T02:38:11.275809Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:38:11.275809Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Deep Polarization Imaging for 3D shape and SVBRDF Acquisition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.GR","cs.LG"],"primary_cat":"cs.CV","authors_text":"Abhijeet Ghosh, Valentin Deschaintre, Yiming Lin","submitted_at":"2021-05-06T17:58:43Z","abstract_excerpt":"We present a novel method for efficient acquisition of shape and spatially varying reflectance of 3D objects using polarization cues. Unlike previous works that have exploited polarization to estimate material or object appearance under certain constraints (known shape or multiview acquisition), we lift such restrictions by coupling polarization imaging with deep learning to achieve high quality estimate of 3D object shape (surface normals and depth) and SVBRDF using single-view polarization imaging under frontal flash illumination. In addition to acquired polarization images, we provide our d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02875","kind":"arxiv","version":1},"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/2105.02875/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":"2105.02875","created_at":"2026-07-05T02:38:11.275870+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.02875v1","created_at":"2026-07-05T02:38:11.275870+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02875","created_at":"2026-07-05T02:38:11.275870+00:00"},{"alias_kind":"pith_short_12","alias_value":"6MQOWCAMKMOB","created_at":"2026-07-05T02:38:11.275870+00:00"},{"alias_kind":"pith_short_16","alias_value":"6MQOWCAMKMOBBBVL","created_at":"2026-07-05T02:38:11.275870+00:00"},{"alias_kind":"pith_short_8","alias_value":"6MQOWCAM","created_at":"2026-07-05T02:38:11.275870+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/6MQOWCAMKMOBBBVLLQEXJCOGSA","json":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA.json","graph_json":"https://pith.science/api/pith-number/6MQOWCAMKMOBBBVLLQEXJCOGSA/graph.json","events_json":"https://pith.science/api/pith-number/6MQOWCAMKMOBBBVLLQEXJCOGSA/events.json","paper":"https://pith.science/paper/6MQOWCAM"},"agent_actions":{"view_html":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA","download_json":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA.json","view_paper":"https://pith.science/paper/6MQOWCAM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.02875&json=true","fetch_graph":"https://pith.science/api/pith-number/6MQOWCAMKMOBBBVLLQEXJCOGSA/graph.json","fetch_events":"https://pith.science/api/pith-number/6MQOWCAMKMOBBBVLLQEXJCOGSA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA/action/storage_attestation","attest_author":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA/action/author_attestation","sign_citation":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA/action/citation_signature","submit_replication":"https://pith.science/pith/6MQOWCAMKMOBBBVLLQEXJCOGSA/action/replication_record"}},"created_at":"2026-07-05T02:38:11.275870+00:00","updated_at":"2026-07-05T02:38:11.275870+00:00"}