{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XBES4IZ7LZTQ5TS6VWSAUQKJOW","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":"ae22fa8fcdf3fe731e669ea5e7b9a18fe0fb2fa45ea777dd72e0a080afa6cf98","cross_cats_sorted":["cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-07-23T08:04:25Z","title_canon_sha256":"d55a8637078602926995c11d350bd82c2888b80c8c79e58d6560d7912ae497d8"},"schema_version":"1.0","source":{"id":"1907.09741","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09741","created_at":"2026-05-17T23:39:50Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09741v1","created_at":"2026-05-17T23:39:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09741","created_at":"2026-05-17T23:39:50Z"},{"alias_kind":"pith_short_12","alias_value":"XBES4IZ7LZTQ","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XBES4IZ7LZTQ5TS6","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XBES4IZ7","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:be6ed14fbddb6d45c2edd493f3cb97cb57e9afd991f683ccec0ef3151e386ae2","target":"graph","created_at":"2026-05-17T23:39:50Z","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":"Quantification of image similarity is a common problem in image processing. For pairs of two images, a variety of options is available and well-understood. However, some applications such as dynamic imaging or serial sectioning involve the analysis of image sequences and thus require a simultaneous and unbiased comparison of many images. This paper proposes a new similarity measure, that takes a global perspective and involves all images at the same time. The key idea is to look at Schatten-q-norms of a matrix assembled from normalized gradient fields of the image sequence. In particular, for ","authors_text":"Benjamin Wacker, Jan Modersitzki, Kai Brehmer","cross_cats":["cs.NA","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-07-23T08:04:25Z","title":"A Novel Similarity Measure for Image Sequences"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09741","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:b38f9432969ea73d7a8ee6e9bb1e6ec393e7339814dd625208633455a8c21017","target":"record","created_at":"2026-05-17T23:39:50Z","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":"ae22fa8fcdf3fe731e669ea5e7b9a18fe0fb2fa45ea777dd72e0a080afa6cf98","cross_cats_sorted":["cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-07-23T08:04:25Z","title_canon_sha256":"d55a8637078602926995c11d350bd82c2888b80c8c79e58d6560d7912ae497d8"},"schema_version":"1.0","source":{"id":"1907.09741","kind":"arxiv","version":1}},"canonical_sha256":"b8492e233f5e670ece5eada40a414975ae0b7428dbd61e21b50dd1cb8ca8e441","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8492e233f5e670ece5eada40a414975ae0b7428dbd61e21b50dd1cb8ca8e441","first_computed_at":"2026-05-17T23:39:50.218749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:50.218749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ipiCUSzreIQ+viGAAv+zdG3dzR2uKZwTmvkd4JkCQK/nFxL+mSa85qrmmIFTKfMlj7I3Kopt2BmPmiTCTgncAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:50.219447Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.09741","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b38f9432969ea73d7a8ee6e9bb1e6ec393e7339814dd625208633455a8c21017","sha256:be6ed14fbddb6d45c2edd493f3cb97cb57e9afd991f683ccec0ef3151e386ae2"],"state_sha256":"1d84e87dc45321da96ebe8fe4d4b57befa95333b2a886b4b341f4104ba824f40"}