{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PVQMHIIGQQJS2T633AV2WNLYVP","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":"f4df58c0a6b900eb6bad36060b5bf4bbb13441a7559640ba8401bcb242394a1e","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-14T03:58:00Z","title_canon_sha256":"2dd1e118c6f85fed0fcbccb3f706c1114d48c38245da1ab99fa5a36182a6215f"},"schema_version":"1.0","source":{"id":"2112.07146","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.07146","created_at":"2026-07-05T03:40:55Z"},{"alias_kind":"arxiv_version","alias_value":"2112.07146v1","created_at":"2026-07-05T03:40:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.07146","created_at":"2026-07-05T03:40:55Z"},{"alias_kind":"pith_short_12","alias_value":"PVQMHIIGQQJS","created_at":"2026-07-05T03:40:55Z"},{"alias_kind":"pith_short_16","alias_value":"PVQMHIIGQQJS2T63","created_at":"2026-07-05T03:40:55Z"},{"alias_kind":"pith_short_8","alias_value":"PVQMHIIG","created_at":"2026-07-05T03:40:55Z"}],"graph_snapshots":[{"event_id":"sha256:9abe69e2f7b10cf77c40462135c6df1081c17341aad845d37e7b4a15aff43642","target":"graph","created_at":"2026-07-05T03:40:55Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2112.07146/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As the COVID-19 pandemic rampages across the world, the demands of video conferencing surge. To this end, real-time portrait segmentation becomes a popular feature to replace backgrounds of conferencing participants. While feature-rich datasets, models and algorithms have been offered for segmentation that extract body postures from life scenes, portrait segmentation has yet not been well covered in a video conferencing context. To facilitate the progress in this field, we introduce an open-source solution named PP-HumanSeg. This work is the first to construct a large-scale video portrait data","authors_text":"Baohua Lai, Guowei Chen, Haoyi Xiong, Juncai Peng, Lutao Chu, Shiyu Tang, Yi Liu, Yuying Hao, Zewu Wu, Zeyu Chen, Zhiliang Yu","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-14T03:58:00Z","title":"PP-HumanSeg: Connectivity-Aware Portrait Segmentation with a Large-Scale Teleconferencing Video Dataset"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.07146","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:c208293c71eb9001c5592af961ec052d20ea2f84df5128d31926fae06d43c32e","target":"record","created_at":"2026-07-05T03:40:55Z","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":"f4df58c0a6b900eb6bad36060b5bf4bbb13441a7559640ba8401bcb242394a1e","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-14T03:58:00Z","title_canon_sha256":"2dd1e118c6f85fed0fcbccb3f706c1114d48c38245da1ab99fa5a36182a6215f"},"schema_version":"1.0","source":{"id":"2112.07146","kind":"arxiv","version":1}},"canonical_sha256":"7d60c3a10684132d4fdbd82bab3578abe4c33af41b478754a90ce09d9d0c6602","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d60c3a10684132d4fdbd82bab3578abe4c33af41b478754a90ce09d9d0c6602","first_computed_at":"2026-07-05T03:40:55.218631Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:40:55.218631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/xkw9kOeZXJKQPXkHGiZ8XRzWHlj7CakdrnD8nSTKV9lk98LcDKXEpW9k7FDPZqLP34hTBRo+yA5jdvb+G5XDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:40:55.219037Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.07146","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c208293c71eb9001c5592af961ec052d20ea2f84df5128d31926fae06d43c32e","sha256:9abe69e2f7b10cf77c40462135c6df1081c17341aad845d37e7b4a15aff43642"],"state_sha256":"a2f57e8283612eb7201195c0789fbef2d47f295be957ffdadc42d5dd13910eb7"}