{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BYCGUKHK5ASZMWSNJ2V6PX7A3X","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":"64b75b1c8d65a339ad6542e7bb4d6ba2a1ff8bfcaee25ef7bc31218d854139be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-04-13T13:38:36Z","title_canon_sha256":"5cc560013946f582e581d89beeb9663402da695221561c088b707efec52afd79"},"schema_version":"1.0","source":{"id":"1704.04126","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04126","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04126v3","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04126","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"pith_short_12","alias_value":"BYCGUKHK5ASZ","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BYCGUKHK5ASZMWSN","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BYCGUKHK","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:22134a03cf339a9a9c34592de1d6c052d04b276cb67ce591a6b230bdcf8bd2fd","target":"graph","created_at":"2026-05-18T00:28:15Z","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":"Single image super resolution (SISR) is an ill-posed problem aiming at estimating a plausible high resolution (HR) image from a single low resolution (LR) image. Current state-of-the-art SISR methods are patch-based. They use either external data or internal self-similarity to learn a prior for a HR image. External data based methods utilize large number of patches from the training data, while self-similarity based approaches leverage one or more similar patches from the input image. In this paper we propose a self-similarity based approach that is able to use large groups of similar patches ","authors_text":"Crist\\'ov\\~ao Cruz, Karen Egiazarian, Rakesh Mehta, Vladimir Katkovnik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-04-13T13:38:36Z","title":"Single Image Super-Resolution based on Wiener Filter in Similarity Domain"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04126","kind":"arxiv","version":3},"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":"sha256:956a63345760ddb1fdc50eaf8a6950c55061d81bb31fff8119595137ebed73a9","target":"record","created_at":"2026-05-18T00:28:15Z","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":"64b75b1c8d65a339ad6542e7bb4d6ba2a1ff8bfcaee25ef7bc31218d854139be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-04-13T13:38:36Z","title_canon_sha256":"5cc560013946f582e581d89beeb9663402da695221561c088b707efec52afd79"},"schema_version":"1.0","source":{"id":"1704.04126","kind":"arxiv","version":3}},"canonical_sha256":"0e046a28eae825965a4d4eabe7dfe0ddd45974ce0017fdceadeb611ca54a2542","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e046a28eae825965a4d4eabe7dfe0ddd45974ce0017fdceadeb611ca54a2542","first_computed_at":"2026-05-18T00:28:15.977133Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:15.977133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JFeajZz705QxvUNH1vpnuwGMl7k/cgdKUN/d6i/tI6SVgTOxWvtPFkfcAg72AESscrdJaq3oBVWsBm1eMn1cDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:15.977782Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.04126","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:956a63345760ddb1fdc50eaf8a6950c55061d81bb31fff8119595137ebed73a9","sha256:22134a03cf339a9a9c34592de1d6c052d04b276cb67ce591a6b230bdcf8bd2fd"],"state_sha256":"66ed11e553e5407d69f557b72a8b457a4b735965ecad7981623cccb22bd3c018"}