{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2K3SNTAKW4GPTWXSAO5VWG46S2","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":"5842be2590e6a22560d895f8f498e103de1c92cbecd11313fae7229685eaad61","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2019-04-02T19:58:23Z","title_canon_sha256":"823b733bfdc527327b2253980e0f9e9f061ee48b81337467d622a0c69a19b1f5"},"schema_version":"1.0","source":{"id":"1904.08493","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.08493","created_at":"2026-05-17T23:48:14Z"},{"alias_kind":"arxiv_version","alias_value":"1904.08493v1","created_at":"2026-05-17T23:48:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.08493","created_at":"2026-05-17T23:48:14Z"},{"alias_kind":"pith_short_12","alias_value":"2K3SNTAKW4GP","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"2K3SNTAKW4GPTWXS","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"2K3SNTAK","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:b6f64452b09ad23d8513b58ce7c4249b7bc736ef4b03e16f82d01c9293140edb","target":"graph","created_at":"2026-05-17T23:48:14Z","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":"Plant Phenomics based on imaging based techniques can be used to monitor the health and the diseases of plants and crops. The use of 3D data for plant phenomics is a recent phenomenon. However, since 3D point cloud contains more information than plant images, in this paper, we compare the performance of different keypoint detectors and local feature descriptors combinations for the plant growth stage and it's growth condition classification based on 3D point clouds of the plants. We have also implemented a modified form of 3D SIFT descriptor, that is invariant to rotation and is computationall","authors_text":"Brejesh Lall, Shiva Azimi, Tapan K. Gandhi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2019-04-02T19:58:23Z","title":"Performance Evalution of 3D Keypoint Detectors and Descriptors for Plants Health Classification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.08493","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":"sha256:6d14cdb7513a3650ab59b4048eff59571429a5aa5f0c5f0add1f3ed52c32dd23","target":"record","created_at":"2026-05-17T23:48:14Z","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":"5842be2590e6a22560d895f8f498e103de1c92cbecd11313fae7229685eaad61","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2019-04-02T19:58:23Z","title_canon_sha256":"823b733bfdc527327b2253980e0f9e9f061ee48b81337467d622a0c69a19b1f5"},"schema_version":"1.0","source":{"id":"1904.08493","kind":"arxiv","version":1}},"canonical_sha256":"d2b726cc0ab70cf9daf203bb5b1b9e968fcbae4cc30303d2fbeaf941f44b95ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2b726cc0ab70cf9daf203bb5b1b9e968fcbae4cc30303d2fbeaf941f44b95ae","first_computed_at":"2026-05-17T23:48:14.002128Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:14.002128Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FrMqo+ycjC4Oh/J0lrB0E4rJ4azDkB4WKKAXXmPIIU6NHyN4Kxlb/nKLc+yNfUMQs/vPzMQhryr+LRgVU7BzCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:14.002581Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.08493","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d14cdb7513a3650ab59b4048eff59571429a5aa5f0c5f0add1f3ed52c32dd23","sha256:b6f64452b09ad23d8513b58ce7c4249b7bc736ef4b03e16f82d01c9293140edb"],"state_sha256":"84179a402d5c08b01bbf37b484fb9e84e63de83dcf1c08093b94e6fb5c7ac35f"}