{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:K7JPLLWBIIFB3T7SMLERB6WQZX","short_pith_number":"pith:K7JPLLWB","canonical_record":{"source":{"id":"1805.04518","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2018-05-11T17:06:11Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"073a1c2a14456674f3fe12395ed192507ca298a5ce9ba11351625fd6059f90b1","abstract_canon_sha256":"1fb64b57e2f450c4983509d8b47c714c5b93300fe876487aa0e9bcb722ab04ab"},"schema_version":"1.0"},"canonical_sha256":"57d2f5aec1420a1dcff262c910fad0cdee33f40f1134b79321a3ba54d5f84b67","source":{"kind":"arxiv","id":"1805.04518","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.04518","created_at":"2026-05-18T00:08:07Z"},{"alias_kind":"arxiv_version","alias_value":"1805.04518v1","created_at":"2026-05-18T00:08:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.04518","created_at":"2026-05-18T00:08:07Z"},{"alias_kind":"pith_short_12","alias_value":"K7JPLLWBIIFB","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K7JPLLWBIIFB3T7S","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K7JPLLWB","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:K7JPLLWBIIFB3T7SMLERB6WQZX","target":"record","payload":{"canonical_record":{"source":{"id":"1805.04518","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2018-05-11T17:06:11Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"073a1c2a14456674f3fe12395ed192507ca298a5ce9ba11351625fd6059f90b1","abstract_canon_sha256":"1fb64b57e2f450c4983509d8b47c714c5b93300fe876487aa0e9bcb722ab04ab"},"schema_version":"1.0"},"canonical_sha256":"57d2f5aec1420a1dcff262c910fad0cdee33f40f1134b79321a3ba54d5f84b67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:07.076747Z","signature_b64":"wOHVBD4Uo0IwMYOijkYJJFIPvS2m1zw5RkqTQ/byJb3neOzjY86i6iU9uGjyl58lSC4hZ+sFC+OiwmMrR4qmDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57d2f5aec1420a1dcff262c910fad0cdee33f40f1134b79321a3ba54d5f84b67","last_reissued_at":"2026-05-18T00:08:07.076243Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:07.076243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.04518","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":"2026-05-18T00:08:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"33gTUafDlzuiwdk+VfNVAhEtKQsjmyItZ6yNnXRdoz5QOJl/58hGzyQJGmJ4PMa2tT1MEjZF86Kns5i9KrJwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:09:58.849354Z"},"content_sha256":"fad49bb97e1d4a0b8593e3860d0e3ba622c1e131a507651c210de87e683e3535","schema_version":"1.0","event_id":"sha256:fad49bb97e1d4a0b8593e3860d0e3ba622c1e131a507651c210de87e683e3535"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:K7JPLLWBIIFB3T7SMLERB6WQZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reconstruction of multiple non-line-of-sight objects using back projection based on ellipsoid mode decomposition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"eess.IV","authors_text":"Chenfei Jin, Jiaheng Xie, Siqi Zhang, Yuan Zhao, Zijing Zhang","submitted_at":"2018-05-11T17:06:11Z","abstract_excerpt":"Non-line-of-sight imaging has attracted more attentions for its wide applications.Even though ultrasensitive cameras or detectors with high time-resolution are available, current back-projection methods are still powerless to acquire a satisfying reconstruction of multiple hidden objects due to severe aliasing artifacts. Here, a novel back-projection method is developed to reconstruct multiple hidden objects. Our method considers decomposing all the ellipsoids in a confidence map into several clusters belonging to different objects (namely ellipsoid mode decomposition), and then reconstructing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.04518","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":"2026-05-18T00:08:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gTwm7p9BlCddSojd2Uy/IVB2MbZN9gnNaK+ZJdbeg/TMvJ2unagd48HTw5ON1pzOqHUBCYXg5i/uj3S9dddyCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:09:58.849850Z"},"content_sha256":"074fd61bfb9f8a78c2c8ff4b09522eed8e252eb89d6484a77ab4275b3d186bcf","schema_version":"1.0","event_id":"sha256:074fd61bfb9f8a78c2c8ff4b09522eed8e252eb89d6484a77ab4275b3d186bcf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K7JPLLWBIIFB3T7SMLERB6WQZX/bundle.json","state_url":"https://pith.science/pith/K7JPLLWBIIFB3T7SMLERB6WQZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K7JPLLWBIIFB3T7SMLERB6WQZX/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":"2026-05-25T23:09:58Z","links":{"resolver":"https://pith.science/pith/K7JPLLWBIIFB3T7SMLERB6WQZX","bundle":"https://pith.science/pith/K7JPLLWBIIFB3T7SMLERB6WQZX/bundle.json","state":"https://pith.science/pith/K7JPLLWBIIFB3T7SMLERB6WQZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K7JPLLWBIIFB3T7SMLERB6WQZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:K7JPLLWBIIFB3T7SMLERB6WQZX","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":"1fb64b57e2f450c4983509d8b47c714c5b93300fe876487aa0e9bcb722ab04ab","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2018-05-11T17:06:11Z","title_canon_sha256":"073a1c2a14456674f3fe12395ed192507ca298a5ce9ba11351625fd6059f90b1"},"schema_version":"1.0","source":{"id":"1805.04518","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.04518","created_at":"2026-05-18T00:08:07Z"},{"alias_kind":"arxiv_version","alias_value":"1805.04518v1","created_at":"2026-05-18T00:08:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.04518","created_at":"2026-05-18T00:08:07Z"},{"alias_kind":"pith_short_12","alias_value":"K7JPLLWBIIFB","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K7JPLLWBIIFB3T7S","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K7JPLLWB","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:074fd61bfb9f8a78c2c8ff4b09522eed8e252eb89d6484a77ab4275b3d186bcf","target":"graph","created_at":"2026-05-18T00:08:07Z","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":"Non-line-of-sight imaging has attracted more attentions for its wide applications.Even though ultrasensitive cameras or detectors with high time-resolution are available, current back-projection methods are still powerless to acquire a satisfying reconstruction of multiple hidden objects due to severe aliasing artifacts. Here, a novel back-projection method is developed to reconstruct multiple hidden objects. Our method considers decomposing all the ellipsoids in a confidence map into several clusters belonging to different objects (namely ellipsoid mode decomposition), and then reconstructing","authors_text":"Chenfei Jin, Jiaheng Xie, Siqi Zhang, Yuan Zhao, Zijing Zhang","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2018-05-11T17:06:11Z","title":"Reconstruction of multiple non-line-of-sight objects using back projection based on ellipsoid mode decomposition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.04518","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:fad49bb97e1d4a0b8593e3860d0e3ba622c1e131a507651c210de87e683e3535","target":"record","created_at":"2026-05-18T00:08:07Z","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":"1fb64b57e2f450c4983509d8b47c714c5b93300fe876487aa0e9bcb722ab04ab","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2018-05-11T17:06:11Z","title_canon_sha256":"073a1c2a14456674f3fe12395ed192507ca298a5ce9ba11351625fd6059f90b1"},"schema_version":"1.0","source":{"id":"1805.04518","kind":"arxiv","version":1}},"canonical_sha256":"57d2f5aec1420a1dcff262c910fad0cdee33f40f1134b79321a3ba54d5f84b67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57d2f5aec1420a1dcff262c910fad0cdee33f40f1134b79321a3ba54d5f84b67","first_computed_at":"2026-05-18T00:08:07.076243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:07.076243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wOHVBD4Uo0IwMYOijkYJJFIPvS2m1zw5RkqTQ/byJb3neOzjY86i6iU9uGjyl58lSC4hZ+sFC+OiwmMrR4qmDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:07.076747Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.04518","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fad49bb97e1d4a0b8593e3860d0e3ba622c1e131a507651c210de87e683e3535","sha256:074fd61bfb9f8a78c2c8ff4b09522eed8e252eb89d6484a77ab4275b3d186bcf"],"state_sha256":"ea49502a126b601c2396ded914d2e38ff2408f307874e488e33f28ad6e2bcfba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NTqYwbGqD43N5ft0t4NdLMqZbRnTt9nKO1ETuUbBw2LaOxAi4iKt7lOOpjiUXhE1eTPA5L6rO+SgIiQjBEJ7Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:09:58.853160Z","bundle_sha256":"d9742d7526d68fc0284414e68d532a9729a5ac5b517439a753915ef3cb0077f3"}}