{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:TPPTD5D3LNNILSBB2A6P5ACMSP","short_pith_number":"pith:TPPTD5D3","schema_version":"1.0","canonical_sha256":"9bdf31f47b5b5a85c821d03cfe804c93c4d186a0463a450af56af8d413fcf56f","source":{"kind":"arxiv","id":"1810.07122","version":1},"attestation_state":"computed","paper":{"title":"Robust Gesture-Based Communication for Underwater Human-Robot Interaction in the context of Search and Rescue Diver Missions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"cs.RO","authors_text":"Andreas Birk, Arturo Gomez Chavez, Christian A. Mueller, Davide Chiarella, Tobias Doernbach","submitted_at":"2018-10-16T16:32:30Z","abstract_excerpt":"We propose a robust gesture-based communication pipeline for divers to instruct an Autonomous Underwater Vehicle (AUV) to assist them in performing high-risk tasks and helping in case of emergency. A gesture communication language (CADDIAN) is developed, based on consolidated and standardized diver gestures, including an alphabet, syntax and semantics, ensuring a logical consistency. A hierarchical classification approach is introduced for hand gesture recognition based on stereo imagery and multi-descriptor aggregation to specifically cope with underwater image artifacts, e.g. light backscatt"},"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":"1810.07122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-10-16T16:32:30Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"819ce1cdf7487ca6934aed50ece7811bfbb217f47112fd574c564d8c233851ff","abstract_canon_sha256":"20959a5b0409414bc3883f67c084d32fb4cfd30cec8b37f486e18c89350bd5b9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:28.213798Z","signature_b64":"JJ2wgoZWgwOo48rB0kPD52DggRTCGvxun0VLvzLiUC3wK5fVldo+cC8jMk9NVjU97qxeZOo+/FZTLUBzj8wkBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bdf31f47b5b5a85c821d03cfe804c93c4d186a0463a450af56af8d413fcf56f","last_reissued_at":"2026-05-17T23:43:28.213137Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:28.213137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Robust Gesture-Based Communication for Underwater Human-Robot Interaction in the context of Search and Rescue Diver Missions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"cs.RO","authors_text":"Andreas Birk, Arturo Gomez Chavez, Christian A. Mueller, Davide Chiarella, Tobias Doernbach","submitted_at":"2018-10-16T16:32:30Z","abstract_excerpt":"We propose a robust gesture-based communication pipeline for divers to instruct an Autonomous Underwater Vehicle (AUV) to assist them in performing high-risk tasks and helping in case of emergency. A gesture communication language (CADDIAN) is developed, based on consolidated and standardized diver gestures, including an alphabet, syntax and semantics, ensuring a logical consistency. A hierarchical classification approach is introduced for hand gesture recognition based on stereo imagery and multi-descriptor aggregation to specifically cope with underwater image artifacts, e.g. light backscatt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07122","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1810.07122","created_at":"2026-05-17T23:43:28.213242+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.07122v1","created_at":"2026-05-17T23:43:28.213242+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07122","created_at":"2026-05-17T23:43:28.213242+00:00"},{"alias_kind":"pith_short_12","alias_value":"TPPTD5D3LNNI","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_16","alias_value":"TPPTD5D3LNNILSBB","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_8","alias_value":"TPPTD5D3","created_at":"2026-05-18T12:32:56.356000+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/TPPTD5D3LNNILSBB2A6P5ACMSP","json":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP.json","graph_json":"https://pith.science/api/pith-number/TPPTD5D3LNNILSBB2A6P5ACMSP/graph.json","events_json":"https://pith.science/api/pith-number/TPPTD5D3LNNILSBB2A6P5ACMSP/events.json","paper":"https://pith.science/paper/TPPTD5D3"},"agent_actions":{"view_html":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP","download_json":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP.json","view_paper":"https://pith.science/paper/TPPTD5D3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.07122&json=true","fetch_graph":"https://pith.science/api/pith-number/TPPTD5D3LNNILSBB2A6P5ACMSP/graph.json","fetch_events":"https://pith.science/api/pith-number/TPPTD5D3LNNILSBB2A6P5ACMSP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP/action/storage_attestation","attest_author":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP/action/author_attestation","sign_citation":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP/action/citation_signature","submit_replication":"https://pith.science/pith/TPPTD5D3LNNILSBB2A6P5ACMSP/action/replication_record"}},"created_at":"2026-05-17T23:43:28.213242+00:00","updated_at":"2026-05-17T23:43:28.213242+00:00"}