{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:KLV5FQS5NVSGHSUO6HMFCJ4ENO","short_pith_number":"pith:KLV5FQS5","canonical_record":{"source":{"id":"1704.07528","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2017-04-25T03:44:29Z","cross_cats_sorted":[],"title_canon_sha256":"9a0ccb6595eeb478bdb3513a839cb95b80cc8f462fe0ac7ac5ff0c8f770569e4","abstract_canon_sha256":"8bb7347aad4e65cb60d8bc1831070e82eb8c8d10b046bbaca7a862affc195798"},"schema_version":"1.0"},"canonical_sha256":"52ebd2c25d6d6463ca8ef1d85127846b885cedf60e4fa66d2f2631da35113d99","source":{"kind":"arxiv","id":"1704.07528","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.07528","created_at":"2026-05-18T00:35:41Z"},{"alias_kind":"arxiv_version","alias_value":"1704.07528v2","created_at":"2026-05-18T00:35:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.07528","created_at":"2026-05-18T00:35:41Z"},{"alias_kind":"pith_short_12","alias_value":"KLV5FQS5NVSG","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KLV5FQS5NVSGHSUO","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KLV5FQS5","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:KLV5FQS5NVSGHSUO6HMFCJ4ENO","target":"record","payload":{"canonical_record":{"source":{"id":"1704.07528","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2017-04-25T03:44:29Z","cross_cats_sorted":[],"title_canon_sha256":"9a0ccb6595eeb478bdb3513a839cb95b80cc8f462fe0ac7ac5ff0c8f770569e4","abstract_canon_sha256":"8bb7347aad4e65cb60d8bc1831070e82eb8c8d10b046bbaca7a862affc195798"},"schema_version":"1.0"},"canonical_sha256":"52ebd2c25d6d6463ca8ef1d85127846b885cedf60e4fa66d2f2631da35113d99","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:41.415537Z","signature_b64":"QbzuCdEVu7XenX2YmxpCz81MTqQfbMsqq6DZrGm0qENqL/9POCGfOayerW0udNEAPuLASyB0xHS5CMBaMApjAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52ebd2c25d6d6463ca8ef1d85127846b885cedf60e4fa66d2f2631da35113d99","last_reissued_at":"2026-05-18T00:35:41.415029Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:41.415029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.07528","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:35:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xj8f9rMjIs4piZCRmeIjEI+TrKoYqSTclfamP/T7JttRjumSUh4KKSPQcW9nJzipM2ZlAbTSpfK5jf/K+QYjDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:33:41.408608Z"},"content_sha256":"6e0926bde82b912892e13fddd981e74e82efc4f82ac9d6876c6389935af32a05","schema_version":"1.0","event_id":"sha256:6e0926bde82b912892e13fddd981e74e82efc4f82ac9d6876c6389935af32a05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:KLV5FQS5NVSGHSUO6HMFCJ4ENO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Automatic Content-aware Projection for 360{\\deg} Videos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Chang-Ryeol Lee, Dae-Yong Jo, Hyeok-Jae Choi, Kuk-Jin Yoon, Yeong Won Kim, Yong Hoon Kwon","submitted_at":"2017-04-25T03:44:29Z","abstract_excerpt":"To watch 360{\\deg} videos on normal 2D displays, we need to project the selected part of the 360{\\deg} image onto the 2D display plane. In this paper, we propose a fully-automated framework for generating content-aware 2D normal-view perspective videos from 360{\\deg} videos. Especially, we focus on the projection step preserving important image contents and reducing image distortion. Basically, our projection method is based on Pannini projection model. At first, the salient contents such as linear structures and salient regions in the image are preserved by optimizing the single Panini projec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.07528","kind":"arxiv","version":2},"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":"2026-05-18T00:35:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KHHnZAlPrVd7Ghcq27v9wGoiL5YQB0ck/3PjAG14b35tG3B9Ris6SHqZn6+Srraytn57Xb8nbQchJU3+crqABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:33:41.409026Z"},"content_sha256":"8ea693ed3eedfccf4a68caef0dcd3f69efa19b0b5ae889923f04b6108a569d66","schema_version":"1.0","event_id":"sha256:8ea693ed3eedfccf4a68caef0dcd3f69efa19b0b5ae889923f04b6108a569d66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO/bundle.json","state_url":"https://pith.science/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO/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":"2026-05-26T07:33:41Z","links":{"resolver":"https://pith.science/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO","bundle":"https://pith.science/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO/bundle.json","state":"https://pith.science/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KLV5FQS5NVSGHSUO6HMFCJ4ENO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KLV5FQS5NVSGHSUO6HMFCJ4ENO","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":"8bb7347aad4e65cb60d8bc1831070e82eb8c8d10b046bbaca7a862affc195798","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2017-04-25T03:44:29Z","title_canon_sha256":"9a0ccb6595eeb478bdb3513a839cb95b80cc8f462fe0ac7ac5ff0c8f770569e4"},"schema_version":"1.0","source":{"id":"1704.07528","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.07528","created_at":"2026-05-18T00:35:41Z"},{"alias_kind":"arxiv_version","alias_value":"1704.07528v2","created_at":"2026-05-18T00:35:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.07528","created_at":"2026-05-18T00:35:41Z"},{"alias_kind":"pith_short_12","alias_value":"KLV5FQS5NVSG","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KLV5FQS5NVSGHSUO","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KLV5FQS5","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:8ea693ed3eedfccf4a68caef0dcd3f69efa19b0b5ae889923f04b6108a569d66","target":"graph","created_at":"2026-05-18T00:35:41Z","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":"To watch 360{\\deg} videos on normal 2D displays, we need to project the selected part of the 360{\\deg} image onto the 2D display plane. In this paper, we propose a fully-automated framework for generating content-aware 2D normal-view perspective videos from 360{\\deg} videos. Especially, we focus on the projection step preserving important image contents and reducing image distortion. Basically, our projection method is based on Pannini projection model. At first, the salient contents such as linear structures and salient regions in the image are preserved by optimizing the single Panini projec","authors_text":"Chang-Ryeol Lee, Dae-Yong Jo, Hyeok-Jae Choi, Kuk-Jin Yoon, Yeong Won Kim, Yong Hoon Kwon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2017-04-25T03:44:29Z","title":"Automatic Content-aware Projection for 360{\\deg} Videos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.07528","kind":"arxiv","version":2},"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":"sha256:6e0926bde82b912892e13fddd981e74e82efc4f82ac9d6876c6389935af32a05","target":"record","created_at":"2026-05-18T00:35:41Z","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":"8bb7347aad4e65cb60d8bc1831070e82eb8c8d10b046bbaca7a862affc195798","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2017-04-25T03:44:29Z","title_canon_sha256":"9a0ccb6595eeb478bdb3513a839cb95b80cc8f462fe0ac7ac5ff0c8f770569e4"},"schema_version":"1.0","source":{"id":"1704.07528","kind":"arxiv","version":2}},"canonical_sha256":"52ebd2c25d6d6463ca8ef1d85127846b885cedf60e4fa66d2f2631da35113d99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52ebd2c25d6d6463ca8ef1d85127846b885cedf60e4fa66d2f2631da35113d99","first_computed_at":"2026-05-18T00:35:41.415029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:41.415029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QbzuCdEVu7XenX2YmxpCz81MTqQfbMsqq6DZrGm0qENqL/9POCGfOayerW0udNEAPuLASyB0xHS5CMBaMApjAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:41.415537Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.07528","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e0926bde82b912892e13fddd981e74e82efc4f82ac9d6876c6389935af32a05","sha256:8ea693ed3eedfccf4a68caef0dcd3f69efa19b0b5ae889923f04b6108a569d66"],"state_sha256":"ccab0aa1242d9be921204bb25748c1957f29c41a256c5aaa2e05568fff629025"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4/ntXQYc6iw6dlZIN4kHRbXF9QvaV3CZzLxFoQjtdzYVbsV3y5R5jv40g8VEZ2en3kWlNpiOsITujqnKoFPdDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:33:41.412059Z","bundle_sha256":"dc0f67f16e36ed316172b160890bbb471342ec75059937a5f2c283f7258b603b"}}