{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:PWVPA2NWUUXRQCAZQCOSZU7O5P","short_pith_number":"pith:PWVPA2NW","schema_version":"1.0","canonical_sha256":"7daaf069b6a52f180819809d2cd3eeebc2738629969a1f82d815fbb391a3f11a","source":{"kind":"arxiv","id":"1903.03247","version":1},"attestation_state":"computed","paper":{"title":"HoloCast: Graph Signal Processing for Graceful Point Cloud Delivery","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP"],"primary_cat":"cs.MM","authors_text":"Philip V. Orlik, Takashi Watanabe, Takuya Fujihashi, Toshiaki Koike-Akino","submitted_at":"2019-03-08T02:02:51Z","abstract_excerpt":"In conventional point cloud delivery, a sender uses octree-based digital video compression to stream three-dimensional (3D) points and the corresponding color attributes over band-limited links, e.g., wireless channels, for 3D scene reconstructions. However, the digital-based delivery schemes have an issue called cliff effect, where the 3D reconstruction quality is a step function in terms of wireless channel quality. We propose a novel scheme of point cloud delivery, called HoloCast, to gracefully improve the reconstruction quality with the improvement of wireless channel quality. HoloCast re"},"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":"1903.03247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2019-03-08T02:02:51Z","cross_cats_sorted":["eess.SP"],"title_canon_sha256":"b7502d12ad37a919eba085873f6ea13b5ac2e20a6e1234262a5af966dd5100d4","abstract_canon_sha256":"5be4abf4023f720bb1e62d0f9cb835af52eb4ec0895ac288dd7cf1aa6cc800b5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:46.079668Z","signature_b64":"YAZHJZOdIPvb1wOiJ6c1nXXW+/2vfGfVY/BDl3Ysx5brsrU2pYIkDzk5O4FZCg1VtfrZvjwmFV3kTueRiwpTDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7daaf069b6a52f180819809d2cd3eeebc2738629969a1f82d815fbb391a3f11a","last_reissued_at":"2026-05-17T23:51:46.078967Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:46.078967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"HoloCast: Graph Signal Processing for Graceful Point Cloud Delivery","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP"],"primary_cat":"cs.MM","authors_text":"Philip V. Orlik, Takashi Watanabe, Takuya Fujihashi, Toshiaki Koike-Akino","submitted_at":"2019-03-08T02:02:51Z","abstract_excerpt":"In conventional point cloud delivery, a sender uses octree-based digital video compression to stream three-dimensional (3D) points and the corresponding color attributes over band-limited links, e.g., wireless channels, for 3D scene reconstructions. However, the digital-based delivery schemes have an issue called cliff effect, where the 3D reconstruction quality is a step function in terms of wireless channel quality. We propose a novel scheme of point cloud delivery, called HoloCast, to gracefully improve the reconstruction quality with the improvement of wireless channel quality. HoloCast re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03247","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":"1903.03247","created_at":"2026-05-17T23:51:46.079086+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.03247v1","created_at":"2026-05-17T23:51:46.079086+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03247","created_at":"2026-05-17T23:51:46.079086+00:00"},{"alias_kind":"pith_short_12","alias_value":"PWVPA2NWUUXR","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"PWVPA2NWUUXRQCAZ","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"PWVPA2NW","created_at":"2026-05-18T12:33:24.271573+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/PWVPA2NWUUXRQCAZQCOSZU7O5P","json":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P.json","graph_json":"https://pith.science/api/pith-number/PWVPA2NWUUXRQCAZQCOSZU7O5P/graph.json","events_json":"https://pith.science/api/pith-number/PWVPA2NWUUXRQCAZQCOSZU7O5P/events.json","paper":"https://pith.science/paper/PWVPA2NW"},"agent_actions":{"view_html":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P","download_json":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P.json","view_paper":"https://pith.science/paper/PWVPA2NW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.03247&json=true","fetch_graph":"https://pith.science/api/pith-number/PWVPA2NWUUXRQCAZQCOSZU7O5P/graph.json","fetch_events":"https://pith.science/api/pith-number/PWVPA2NWUUXRQCAZQCOSZU7O5P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P/action/storage_attestation","attest_author":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P/action/author_attestation","sign_citation":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P/action/citation_signature","submit_replication":"https://pith.science/pith/PWVPA2NWUUXRQCAZQCOSZU7O5P/action/replication_record"}},"created_at":"2026-05-17T23:51:46.079086+00:00","updated_at":"2026-05-17T23:51:46.079086+00:00"}