{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:J73KHRBMZSXGV7CXQPVALUJ7VR","short_pith_number":"pith:J73KHRBM","canonical_record":{"source":{"id":"1811.00327","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-01T11:51:29Z","cross_cats_sorted":[],"title_canon_sha256":"c6f62b167990aee575f4758033b562f45d429dbe778f5f14e414eb2c60d9e846","abstract_canon_sha256":"201b28e96841c6159962e5237edd0c8a068eb5eb4b5797f824eb2b88c52985a4"},"schema_version":"1.0"},"canonical_sha256":"4ff6a3c42cccae6afc5783ea05d13fac5d135f9fedeb3450847d6d86fd1e272d","source":{"kind":"arxiv","id":"1811.00327","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00327","created_at":"2026-05-18T00:01:46Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00327v1","created_at":"2026-05-18T00:01:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00327","created_at":"2026-05-18T00:01:46Z"},{"alias_kind":"pith_short_12","alias_value":"J73KHRBMZSXG","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"J73KHRBMZSXGV7CX","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"J73KHRBM","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:J73KHRBMZSXGV7CXQPVALUJ7VR","target":"record","payload":{"canonical_record":{"source":{"id":"1811.00327","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-01T11:51:29Z","cross_cats_sorted":[],"title_canon_sha256":"c6f62b167990aee575f4758033b562f45d429dbe778f5f14e414eb2c60d9e846","abstract_canon_sha256":"201b28e96841c6159962e5237edd0c8a068eb5eb4b5797f824eb2b88c52985a4"},"schema_version":"1.0"},"canonical_sha256":"4ff6a3c42cccae6afc5783ea05d13fac5d135f9fedeb3450847d6d86fd1e272d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:46.719149Z","signature_b64":"7JYSTGlgYbovE/9vUn+htKHCqTkruKYUc33ctzQM6EmgkQvABrMijaPpSCY0RMSNX5pgTuZb6GKLNHAArIyACw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ff6a3c42cccae6afc5783ea05d13fac5d135f9fedeb3450847d6d86fd1e272d","last_reissued_at":"2026-05-18T00:01:46.718697Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:46.718697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.00327","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":"2026-05-18T00:01:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AYa54v58fmhbRgmQ6nIATsQHJz3nE4z5D/euwlM2ZO+9lTx9XAKB4rPzfRqj4FcHJoHnoqIu7H+P09pOsYloBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:51:25.843170Z"},"content_sha256":"00dbce51a585df243534e6eb97c086f6c216b45b60ecdc50a0bc3d105843b364","schema_version":"1.0","event_id":"sha256:00dbce51a585df243534e6eb97c086f6c216b45b60ecdc50a0bc3d105843b364"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:J73KHRBMZSXGV7CXQPVALUJ7VR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Asymmetric Bilateral Phase Correlation for Optical Flow Estimation in the Frequency Domain","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Vasileios Argyriou","submitted_at":"2018-11-01T11:51:29Z","abstract_excerpt":"We address the problem of motion estimation in images operating in the frequency domain. A method is presented which extends phase correlation to handle multiple motions present in an area. Our scheme is based on a novel Bilateral-Phase Correlation (BLPC) technique that incorporates the concept and principles of Bilateral Filters retaining the motion boundaries by taking into account the difference both in value and distance in a manner very similar to Gaussian convolution. The optical flow is obtained by applying the proposed method at certain locations selected based on the present motion di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00327","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":"2026-05-18T00:01:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y8MPtG0nKnLWlf2cpN/bFZMlZMb8FbvH0pSr23v0CHjTjtairU9kdbXNpn4+H0tPxKhyCr60FAVxH1tdl4e0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:51:25.843565Z"},"content_sha256":"ae22296f8b1352f21e847c45cbe91309164f9e20879f8ed5ee46159d0dbdb0b0","schema_version":"1.0","event_id":"sha256:ae22296f8b1352f21e847c45cbe91309164f9e20879f8ed5ee46159d0dbdb0b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J73KHRBMZSXGV7CXQPVALUJ7VR/bundle.json","state_url":"https://pith.science/pith/J73KHRBMZSXGV7CXQPVALUJ7VR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J73KHRBMZSXGV7CXQPVALUJ7VR/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":"2026-06-01T06:51:25Z","links":{"resolver":"https://pith.science/pith/J73KHRBMZSXGV7CXQPVALUJ7VR","bundle":"https://pith.science/pith/J73KHRBMZSXGV7CXQPVALUJ7VR/bundle.json","state":"https://pith.science/pith/J73KHRBMZSXGV7CXQPVALUJ7VR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J73KHRBMZSXGV7CXQPVALUJ7VR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:J73KHRBMZSXGV7CXQPVALUJ7VR","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":"201b28e96841c6159962e5237edd0c8a068eb5eb4b5797f824eb2b88c52985a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-01T11:51:29Z","title_canon_sha256":"c6f62b167990aee575f4758033b562f45d429dbe778f5f14e414eb2c60d9e846"},"schema_version":"1.0","source":{"id":"1811.00327","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00327","created_at":"2026-05-18T00:01:46Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00327v1","created_at":"2026-05-18T00:01:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00327","created_at":"2026-05-18T00:01:46Z"},{"alias_kind":"pith_short_12","alias_value":"J73KHRBMZSXG","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"J73KHRBMZSXGV7CX","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"J73KHRBM","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:ae22296f8b1352f21e847c45cbe91309164f9e20879f8ed5ee46159d0dbdb0b0","target":"graph","created_at":"2026-05-18T00:01:46Z","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":"We address the problem of motion estimation in images operating in the frequency domain. A method is presented which extends phase correlation to handle multiple motions present in an area. Our scheme is based on a novel Bilateral-Phase Correlation (BLPC) technique that incorporates the concept and principles of Bilateral Filters retaining the motion boundaries by taking into account the difference both in value and distance in a manner very similar to Gaussian convolution. The optical flow is obtained by applying the proposed method at certain locations selected based on the present motion di","authors_text":"Vasileios Argyriou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-01T11:51:29Z","title":"Asymmetric Bilateral Phase Correlation for Optical Flow Estimation in the Frequency Domain"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00327","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":"sha256:00dbce51a585df243534e6eb97c086f6c216b45b60ecdc50a0bc3d105843b364","target":"record","created_at":"2026-05-18T00:01:46Z","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":"201b28e96841c6159962e5237edd0c8a068eb5eb4b5797f824eb2b88c52985a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-01T11:51:29Z","title_canon_sha256":"c6f62b167990aee575f4758033b562f45d429dbe778f5f14e414eb2c60d9e846"},"schema_version":"1.0","source":{"id":"1811.00327","kind":"arxiv","version":1}},"canonical_sha256":"4ff6a3c42cccae6afc5783ea05d13fac5d135f9fedeb3450847d6d86fd1e272d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ff6a3c42cccae6afc5783ea05d13fac5d135f9fedeb3450847d6d86fd1e272d","first_computed_at":"2026-05-18T00:01:46.718697Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:46.718697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7JYSTGlgYbovE/9vUn+htKHCqTkruKYUc33ctzQM6EmgkQvABrMijaPpSCY0RMSNX5pgTuZb6GKLNHAArIyACw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:46.719149Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.00327","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00dbce51a585df243534e6eb97c086f6c216b45b60ecdc50a0bc3d105843b364","sha256:ae22296f8b1352f21e847c45cbe91309164f9e20879f8ed5ee46159d0dbdb0b0"],"state_sha256":"a6fefccf0e0ade917eb8519670f428ee40c5abdbc5df07761079f9d58d48cc3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VdgcEcXZwpxUdP6UamqTXLb7c4tZfERISd3xE/TRcaM3N+GH49tFJzBwdWKQXsGySBPy2Fii9BgNhOLkIhrOBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:51:25.845770Z","bundle_sha256":"954255522f97c31b138cb587da6763da220bf3d05a3bb657cbae1fa38cdc3e34"}}