{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:5LRTEFDKEA2AVMBC2FMJ3S6VSF","short_pith_number":"pith:5LRTEFDK","canonical_record":{"source":{"id":"1907.04096","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2019-07-09T11:44:40Z","cross_cats_sorted":[],"title_canon_sha256":"e50197774b3a1de6cb668b9d00c5647a7b62623a770c726f9baf2e896b28d8fb","abstract_canon_sha256":"24bfc72a28f8d52781f639bc4b1426681f2ba5dea7d1b81544a3e86c7b6b8949"},"schema_version":"1.0"},"canonical_sha256":"eae332146a20340ab022d1589dcbd59159ebff1f19b8d7667eecadd3ef442585","source":{"kind":"arxiv","id":"1907.04096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.04096","created_at":"2026-05-17T23:40:48Z"},{"alias_kind":"arxiv_version","alias_value":"1907.04096v1","created_at":"2026-05-17T23:40:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.04096","created_at":"2026-05-17T23:40:48Z"},{"alias_kind":"pith_short_12","alias_value":"5LRTEFDKEA2A","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5LRTEFDKEA2AVMBC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5LRTEFDK","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:5LRTEFDKEA2AVMBC2FMJ3S6VSF","target":"record","payload":{"canonical_record":{"source":{"id":"1907.04096","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2019-07-09T11:44:40Z","cross_cats_sorted":[],"title_canon_sha256":"e50197774b3a1de6cb668b9d00c5647a7b62623a770c726f9baf2e896b28d8fb","abstract_canon_sha256":"24bfc72a28f8d52781f639bc4b1426681f2ba5dea7d1b81544a3e86c7b6b8949"},"schema_version":"1.0"},"canonical_sha256":"eae332146a20340ab022d1589dcbd59159ebff1f19b8d7667eecadd3ef442585","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:48.568780Z","signature_b64":"9b6CEdfhDSR0F5tZzjwZYNNwCwiZlyXuUxToGUXk5MGUg9lSaHParDP3qAs3ee/5W4Dg4E6wn/CME1OvzuJUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eae332146a20340ab022d1589dcbd59159ebff1f19b8d7667eecadd3ef442585","last_reissued_at":"2026-05-17T23:40:48.568128Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:48.568128Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.04096","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":"2026-05-17T23:40:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MD9rLr74v2QaPqutZ3lkW3bbK1IqA4j7lff4G5JdIAIJgf2QtXtIE9G7FUGmkDrlbX7miOsOQBARc9BppH1QDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:40:55.584250Z"},"content_sha256":"80f66c5ac84f3d3076aa33da942259a67c64dd68e01f1649f7a8b08a870ecf3d","schema_version":"1.0","event_id":"sha256:80f66c5ac84f3d3076aa33da942259a67c64dd68e01f1649f7a8b08a870ecf3d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:5LRTEFDKEA2AVMBC2FMJ3S6VSF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient Pose Selection for Interactive Camera Calibration","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Arjan Kuijper, Pavel Rojtberg","submitted_at":"2019-07-09T11:44:40Z","abstract_excerpt":"The choice of poses for camera calibration with planar patterns is only rarely considered - yet the calibration precision heavily depends on it. This work presents a pose selection method that finds a compact and robust set of calibration poses and is suitable for interactive calibration. Consequently, singular poses that would lead to an unreliable solution are avoided explicitly, while poses reducing the uncertainty of the calibration are favoured. For this, we use uncertainty propagation.\n  Our method takes advantage of a self-identifying calibration pattern to track the camera pose in real"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.04096","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":"2026-05-17T23:40:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kGlL0rDsKxWzAA1/DI6YQVr9+TjjKu7WBeSswvgFzr0h/2msefqRhXJkr0qSUeVz0AZ7HhuzHBdQZ9sR5I8xBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:40:55.584946Z"},"content_sha256":"3627d2a7e08d40f2c79a5ad531af74a9c3ab142c6e432729f203b0515da3ee49","schema_version":"1.0","event_id":"sha256:3627d2a7e08d40f2c79a5ad531af74a9c3ab142c6e432729f203b0515da3ee49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF/bundle.json","state_url":"https://pith.science/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF/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":"2026-05-25T12:40:55Z","links":{"resolver":"https://pith.science/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF","bundle":"https://pith.science/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF/bundle.json","state":"https://pith.science/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5LRTEFDKEA2AVMBC2FMJ3S6VSF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5LRTEFDKEA2AVMBC2FMJ3S6VSF","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":"24bfc72a28f8d52781f639bc4b1426681f2ba5dea7d1b81544a3e86c7b6b8949","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2019-07-09T11:44:40Z","title_canon_sha256":"e50197774b3a1de6cb668b9d00c5647a7b62623a770c726f9baf2e896b28d8fb"},"schema_version":"1.0","source":{"id":"1907.04096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.04096","created_at":"2026-05-17T23:40:48Z"},{"alias_kind":"arxiv_version","alias_value":"1907.04096v1","created_at":"2026-05-17T23:40:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.04096","created_at":"2026-05-17T23:40:48Z"},{"alias_kind":"pith_short_12","alias_value":"5LRTEFDKEA2A","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5LRTEFDKEA2AVMBC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5LRTEFDK","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:3627d2a7e08d40f2c79a5ad531af74a9c3ab142c6e432729f203b0515da3ee49","target":"graph","created_at":"2026-05-17T23:40:48Z","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":"The choice of poses for camera calibration with planar patterns is only rarely considered - yet the calibration precision heavily depends on it. This work presents a pose selection method that finds a compact and robust set of calibration poses and is suitable for interactive calibration. Consequently, singular poses that would lead to an unreliable solution are avoided explicitly, while poses reducing the uncertainty of the calibration are favoured. For this, we use uncertainty propagation.\n  Our method takes advantage of a self-identifying calibration pattern to track the camera pose in real","authors_text":"Arjan Kuijper, Pavel Rojtberg","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2019-07-09T11:44:40Z","title":"Efficient Pose Selection for Interactive Camera Calibration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.04096","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":"sha256:80f66c5ac84f3d3076aa33da942259a67c64dd68e01f1649f7a8b08a870ecf3d","target":"record","created_at":"2026-05-17T23:40:48Z","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":"24bfc72a28f8d52781f639bc4b1426681f2ba5dea7d1b81544a3e86c7b6b8949","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2019-07-09T11:44:40Z","title_canon_sha256":"e50197774b3a1de6cb668b9d00c5647a7b62623a770c726f9baf2e896b28d8fb"},"schema_version":"1.0","source":{"id":"1907.04096","kind":"arxiv","version":1}},"canonical_sha256":"eae332146a20340ab022d1589dcbd59159ebff1f19b8d7667eecadd3ef442585","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eae332146a20340ab022d1589dcbd59159ebff1f19b8d7667eecadd3ef442585","first_computed_at":"2026-05-17T23:40:48.568128Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:48.568128Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9b6CEdfhDSR0F5tZzjwZYNNwCwiZlyXuUxToGUXk5MGUg9lSaHParDP3qAs3ee/5W4Dg4E6wn/CME1OvzuJUCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:48.568780Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.04096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80f66c5ac84f3d3076aa33da942259a67c64dd68e01f1649f7a8b08a870ecf3d","sha256:3627d2a7e08d40f2c79a5ad531af74a9c3ab142c6e432729f203b0515da3ee49"],"state_sha256":"4b642ce398d3349505983d7e152b6c08b31e074db6d3baffa0a0ee4a3f95354b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XxQ4uRyxfWZ3xYpqrV+gnmE4a4rEOCh+lYVvOuKFNm5Go8DD7kL2Pu2GjBV47W2SAeC/BuQfOnfJSU7WNVCWAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T12:40:55.587862Z","bundle_sha256":"a30855a1a44957b462402b1468293b9b5c6e3d1088c244bf986ee879d11a7340"}}