{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LGPU7UCPTCM5SS4IQZXWC6NP37","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":"64623bb9ca445fb0d83f1581efdf81d9e9c4fef51032e7430ba9798f0d9b87ad","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2016-12-18T10:30:58Z","title_canon_sha256":"4771b73f89aaa294b1a3ee0cf4ca5bb851907f8f81d5eb043560d21d669976a9"},"schema_version":"1.0","source":{"id":"1612.05890","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05890","created_at":"2026-05-18T00:54:46Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05890v1","created_at":"2026-05-18T00:54:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05890","created_at":"2026-05-18T00:54:46Z"},{"alias_kind":"pith_short_12","alias_value":"LGPU7UCPTCM5","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LGPU7UCPTCM5SS4I","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LGPU7UCP","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:faa9a7605aca9c01a3f76d6942157d9dbe3db2b84bcb33daa0fe4202fee9da29","target":"graph","created_at":"2026-05-18T00:54:46Z","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":"Numerous single-image super-resolution algorithms have been proposed in the literature, but few studies address the problem of performance evaluation based on visual perception. While most super-resolution images are evaluated by fullreference metrics, the effectiveness is not clear and the required ground-truth images are not always available in practice. To address these problems, we conduct human subject studies using a large set of super-resolution images and propose a no-reference metric learned from visual perceptual scores. Specifically, we design three types of low-level statistical fe","authors_text":"Chao Ma, Chih-Yuan Yang, Ming-Hsuan Yang, Xiaokang Yang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2016-12-18T10:30:58Z","title":"Learning a No-Reference Quality Metric for Single-Image Super-Resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05890","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":"sha256:982f50fd838605efcb9de95306a44e0285193f7da4a0800355e2f519dc199963","target":"record","created_at":"2026-05-18T00:54:46Z","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":"64623bb9ca445fb0d83f1581efdf81d9e9c4fef51032e7430ba9798f0d9b87ad","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2016-12-18T10:30:58Z","title_canon_sha256":"4771b73f89aaa294b1a3ee0cf4ca5bb851907f8f81d5eb043560d21d669976a9"},"schema_version":"1.0","source":{"id":"1612.05890","kind":"arxiv","version":1}},"canonical_sha256":"599f4fd04f9899d94b88866f6179afdfc852f9f8e35f2eda6c00d3a7d1a2c432","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"599f4fd04f9899d94b88866f6179afdfc852f9f8e35f2eda6c00d3a7d1a2c432","first_computed_at":"2026-05-18T00:54:46.393790Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:46.393790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tBwEjQlahaJQwEKp+lPS1Dm9w1xhud6pH8OldHKu4IF9pmLidydO5nSbmqZgaHjoy3+GsT3qntI+RKmBN9w1Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:46.394163Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.05890","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:982f50fd838605efcb9de95306a44e0285193f7da4a0800355e2f519dc199963","sha256:faa9a7605aca9c01a3f76d6942157d9dbe3db2b84bcb33daa0fe4202fee9da29"],"state_sha256":"d71a6a75eb78188b56e9562356bbebf3ad2b5c171c984a77f38ed31712666cb5"}