{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:L7A6U4DIMF67LXVDS5OI2BBQEE","short_pith_number":"pith:L7A6U4DI","schema_version":"1.0","canonical_sha256":"5fc1ea7068617df5dea3975c8d0430212fa4fbbffa54c7792d34e3c784adf948","source":{"kind":"arxiv","id":"2105.09993","version":1},"attestation_state":"computed","paper":{"title":"Dense Reconstruction of Transparent Objects by Altering Incident Light Paths Through Refraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Kai Han, Kwan-Yee K. Wong, Miaomiao Liu","submitted_at":"2021-05-20T19:01:12Z","abstract_excerpt":"This paper addresses the problem of reconstructing the surface shape of transparent objects. The difficulty of this problem originates from the viewpoint dependent appearance of a transparent object, which quickly makes reconstruction methods tailored for diffuse surfaces fail disgracefully. In this paper, we introduce a fixed viewpoint approach to dense surface reconstruction of transparent objects based on refraction of light. We present a simple setup that allows us to alter the incident light paths before light rays enter the object by immersing the object partially in a liquid, and develo"},"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":"2105.09993","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2021-05-20T19:01:12Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"58ab396e42c73dc6111dec016a651b43819e0461d0e17a17db8381b19028cfbb","abstract_canon_sha256":"5e1ed7dba6ff6ef123b60a928e6130def58c15481e041c55fab892a7bf7933b6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:42:06.198598Z","signature_b64":"bxpr9FqV0MLdJ5r914eeP/99eXXAwO557YZ/5AJrQEyzxaPQIuX0Li9RtnfZFyLi0LGIHYfr5Je9lWWpbLHnDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5fc1ea7068617df5dea3975c8d0430212fa4fbbffa54c7792d34e3c784adf948","last_reissued_at":"2026-07-05T02:42:06.198257Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:42:06.198257Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dense Reconstruction of Transparent Objects by Altering Incident Light Paths Through Refraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Kai Han, Kwan-Yee K. Wong, Miaomiao Liu","submitted_at":"2021-05-20T19:01:12Z","abstract_excerpt":"This paper addresses the problem of reconstructing the surface shape of transparent objects. The difficulty of this problem originates from the viewpoint dependent appearance of a transparent object, which quickly makes reconstruction methods tailored for diffuse surfaces fail disgracefully. In this paper, we introduce a fixed viewpoint approach to dense surface reconstruction of transparent objects based on refraction of light. We present a simple setup that allows us to alter the incident light paths before light rays enter the object by immersing the object partially in a liquid, and develo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.09993","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/2105.09993/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":"2105.09993","created_at":"2026-07-05T02:42:06.198309+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.09993v1","created_at":"2026-07-05T02:42:06.198309+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.09993","created_at":"2026-07-05T02:42:06.198309+00:00"},{"alias_kind":"pith_short_12","alias_value":"L7A6U4DIMF67","created_at":"2026-07-05T02:42:06.198309+00:00"},{"alias_kind":"pith_short_16","alias_value":"L7A6U4DIMF67LXVD","created_at":"2026-07-05T02:42:06.198309+00:00"},{"alias_kind":"pith_short_8","alias_value":"L7A6U4DI","created_at":"2026-07-05T02:42:06.198309+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/L7A6U4DIMF67LXVDS5OI2BBQEE","json":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE.json","graph_json":"https://pith.science/api/pith-number/L7A6U4DIMF67LXVDS5OI2BBQEE/graph.json","events_json":"https://pith.science/api/pith-number/L7A6U4DIMF67LXVDS5OI2BBQEE/events.json","paper":"https://pith.science/paper/L7A6U4DI"},"agent_actions":{"view_html":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE","download_json":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE.json","view_paper":"https://pith.science/paper/L7A6U4DI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.09993&json=true","fetch_graph":"https://pith.science/api/pith-number/L7A6U4DIMF67LXVDS5OI2BBQEE/graph.json","fetch_events":"https://pith.science/api/pith-number/L7A6U4DIMF67LXVDS5OI2BBQEE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE/action/storage_attestation","attest_author":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE/action/author_attestation","sign_citation":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE/action/citation_signature","submit_replication":"https://pith.science/pith/L7A6U4DIMF67LXVDS5OI2BBQEE/action/replication_record"}},"created_at":"2026-07-05T02:42:06.198309+00:00","updated_at":"2026-07-05T02:42:06.198309+00:00"}