{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ","short_pith_number":"pith:VK4OZ3Q6","canonical_record":{"source":{"id":"1606.02288","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-06-07T07:25:56Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"b75f8c8863d8ae3d09d4a435858199545ad2725163e759e54e9dedc2cf2b6df0","abstract_canon_sha256":"06dfe30b6abff9750e12fbf22a0be4d67d421e5c4f7a651b9e8d4fa539b07f2a"},"schema_version":"1.0"},"canonical_sha256":"aab8ecee1e6d909ccd4d84506a353a7e587f2f08e55d2823d4988c063f3e4f06","source":{"kind":"arxiv","id":"1606.02288","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.02288","created_at":"2026-05-18T00:57:30Z"},{"alias_kind":"arxiv_version","alias_value":"1606.02288v1","created_at":"2026-05-18T00:57:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.02288","created_at":"2026-05-18T00:57:30Z"},{"alias_kind":"pith_short_12","alias_value":"VK4OZ3Q6NWIJ","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VK4OZ3Q6NWIJZTKN","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VK4OZ3Q6","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ","target":"record","payload":{"canonical_record":{"source":{"id":"1606.02288","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-06-07T07:25:56Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"b75f8c8863d8ae3d09d4a435858199545ad2725163e759e54e9dedc2cf2b6df0","abstract_canon_sha256":"06dfe30b6abff9750e12fbf22a0be4d67d421e5c4f7a651b9e8d4fa539b07f2a"},"schema_version":"1.0"},"canonical_sha256":"aab8ecee1e6d909ccd4d84506a353a7e587f2f08e55d2823d4988c063f3e4f06","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:30.764289Z","signature_b64":"7DhNOYF3vE2YyDomXDeS223CBks8nl0guT59lfU0lI7j8yP/ORzy3ijmpLE7ZucbQTHB1M7qbPdhW5OiWmClBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aab8ecee1e6d909ccd4d84506a353a7e587f2f08e55d2823d4988c063f3e4f06","last_reissued_at":"2026-05-18T00:57:30.763706Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:30.763706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.02288","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:57:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kpttNDJx0ourjquLc/vV+900mvIiB4fiQpYAvEsbZRLrIF1EowM9L8TZJIQGMF/KeO9034TeJxHUbBwjeToCBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:32:39.579851Z"},"content_sha256":"39c07ed8c7e6fc3aa23400b4716a05c8773629637c8fe3dfc081357e2ec834fc","schema_version":"1.0","event_id":"sha256:39c07ed8c7e6fc3aa23400b4716a05c8773629637c8fe3dfc081357e2ec834fc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhanced high dynamic range 3D shape measurement based on generalized phase-shifting algorithm","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"cs.CV","authors_text":"Canlin Zhou, Chaorui Zhang, Guangliang Du, Hui Li, Minmin Wang, Shuchun Si, Yanjie Li, Zhenkun Lei","submitted_at":"2016-06-07T07:25:56Z","abstract_excerpt":"It is a challenge for Phase Measurement Profilometry (PMP) to measure objects with a large range of reflectivity variation across the surface. Saturated or dark pixels in the deformed fringe patterns captured by the camera will lead to phase fluctuations and errors. Jiang et al. proposed a high dynamic range real-time 3D shape measurement method without changing camera exposures. Three inverted phase-shifted fringe patterns are used to complement three regular phase-shifted fringe patterns for phase retrieval when any of the regular fringe patterns are saturated. But Jiang's method still has s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.02288","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:57:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mcqyan7ebKW2l05zy47EqSi78IqOiYm29d9ECAQ8nNE8PTwlstB3eAoe1HBaCe8jxJMOy2wPwauRWbZskU+3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:32:39.580272Z"},"content_sha256":"4f2234e4382949290e89af051e69ae2bca868f3229adec998eba19bdfa0f99e1","schema_version":"1.0","event_id":"sha256:4f2234e4382949290e89af051e69ae2bca868f3229adec998eba19bdfa0f99e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ/bundle.json","state_url":"https://pith.science/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-08T21:32:39Z","links":{"resolver":"https://pith.science/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ","bundle":"https://pith.science/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ/bundle.json","state":"https://pith.science/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VK4OZ3Q6NWIJZTKNQRIGUNJ2PZ","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":"06dfe30b6abff9750e12fbf22a0be4d67d421e5c4f7a651b9e8d4fa539b07f2a","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-06-07T07:25:56Z","title_canon_sha256":"b75f8c8863d8ae3d09d4a435858199545ad2725163e759e54e9dedc2cf2b6df0"},"schema_version":"1.0","source":{"id":"1606.02288","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.02288","created_at":"2026-05-18T00:57:30Z"},{"alias_kind":"arxiv_version","alias_value":"1606.02288v1","created_at":"2026-05-18T00:57:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.02288","created_at":"2026-05-18T00:57:30Z"},{"alias_kind":"pith_short_12","alias_value":"VK4OZ3Q6NWIJ","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VK4OZ3Q6NWIJZTKN","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VK4OZ3Q6","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:4f2234e4382949290e89af051e69ae2bca868f3229adec998eba19bdfa0f99e1","target":"graph","created_at":"2026-05-18T00:57:30Z","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"},"paper":{"abstract_excerpt":"It is a challenge for Phase Measurement Profilometry (PMP) to measure objects with a large range of reflectivity variation across the surface. Saturated or dark pixels in the deformed fringe patterns captured by the camera will lead to phase fluctuations and errors. Jiang et al. proposed a high dynamic range real-time 3D shape measurement method without changing camera exposures. Three inverted phase-shifted fringe patterns are used to complement three regular phase-shifted fringe patterns for phase retrieval when any of the regular fringe patterns are saturated. But Jiang's method still has s","authors_text":"Canlin Zhou, Chaorui Zhang, Guangliang Du, Hui Li, Minmin Wang, Shuchun Si, Yanjie Li, Zhenkun Lei","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-06-07T07:25:56Z","title":"Enhanced high dynamic range 3D shape measurement based on generalized phase-shifting algorithm"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.02288","kind":"arxiv","version":1},"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":"sha256:39c07ed8c7e6fc3aa23400b4716a05c8773629637c8fe3dfc081357e2ec834fc","target":"record","created_at":"2026-05-18T00:57:30Z","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":"06dfe30b6abff9750e12fbf22a0be4d67d421e5c4f7a651b9e8d4fa539b07f2a","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-06-07T07:25:56Z","title_canon_sha256":"b75f8c8863d8ae3d09d4a435858199545ad2725163e759e54e9dedc2cf2b6df0"},"schema_version":"1.0","source":{"id":"1606.02288","kind":"arxiv","version":1}},"canonical_sha256":"aab8ecee1e6d909ccd4d84506a353a7e587f2f08e55d2823d4988c063f3e4f06","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aab8ecee1e6d909ccd4d84506a353a7e587f2f08e55d2823d4988c063f3e4f06","first_computed_at":"2026-05-18T00:57:30.763706Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:30.763706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7DhNOYF3vE2YyDomXDeS223CBks8nl0guT59lfU0lI7j8yP/ORzy3ijmpLE7ZucbQTHB1M7qbPdhW5OiWmClBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:30.764289Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.02288","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:39c07ed8c7e6fc3aa23400b4716a05c8773629637c8fe3dfc081357e2ec834fc","sha256:4f2234e4382949290e89af051e69ae2bca868f3229adec998eba19bdfa0f99e1"],"state_sha256":"60063e463b5265ad7bad56122c9ff641600c35a7d73e2bbd47b8997c35ec34f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a/kxx9Vj4GLeYw5HIpxpfhG1oU4Qn2R5ASfWk8pgPqBgBxopiaAHjxnUQXJGsP+pDpeZyttl2zJqis/GUCKwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:32:39.582805Z","bundle_sha256":"11fe9db68c02dc6239270844da33ce59a1cbabe770d5bcc0eaea351fb190f846"}}