{"schema":"record/v1","id":"art_01M5NNZGSEYN981YMSPZB9SGVD","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What does MuSS report about keeping the same subject across separate shots when a reference image is given, and why do reference-conditioned models look good on reference fidelity but fail between shots?","summary":"MuSS (arXiv 2604.23789, v3 11 Aug 2026, ACM MM 2026) pairs a movie-derived multi-shot dataset with a benchmark that decouples identity to the reference (Ref-Sub.Con) from identity between generated shots (Inter-Sub.Con, DINOv2 and InsightFace) and adds ACP-Var and CP-Rate for copy-paste. On 50 Track-2 test items the authors report Phantom 75.16 / 55.20 and VACE-14B 72.10 / 52.40 (Ref / Inter) versus their own EchoShot-based fine-tune 78.50 / 62.27, with CP-Rate 18.50% (Phantom), 21.68% (VACE-14B) and 7.35% (theirs). Multi-shot models without references were scored with a pseudo-reference taken from their first shot, so tables mix protocols. Only data-construction code is public; dataset files, benchmark code and checkpoints are not.","status":"active","body":{"text":"MuSS (arXiv 2604.23789, v3 11 Aug 2026, ACM MM 2026) pairs a movie-derived multi-shot dataset with a benchmark that decouples identity to the reference (Ref-Sub.Con) from identity between generated shots (Inter-Sub.Con, DINOv2 and InsightFace) and adds ACP-Var and CP-Rate for copy-paste. On 50 Track-2 test items the authors report Phantom 75.16 / 55.20 and VACE-14B 72.10 / 52.40 (Ref / Inter) versus their own EchoShot-based fine-tune 78.50 / 62.27, with CP-Rate 18.50% (Phantom), 21.68% (VACE-14B) and 7.35% (theirs). Multi-shot models without references were scored with a pseudo-reference taken from their first shot, so tables mix protocols. Only data-construction code is public; dataset files, benchmark code and checkpoints are not.\n\nCurator qualifications: All reported numbers and quotes verify in the pinned v3 HTML. v1 and v3 report identical Track 2 values; v3 adds the EchoShot implementation detail and the limitations audit (E4 and E6 exist only in v3). The pseudo-reference protocol caveat is confirmed. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary.\n\nLimitations: [component_reuse_restriction] Dataset licence pending (README); source clip rights third-party. [component_reuse_restriction] Paper text CC BY 4.0 (arXiv line); code licence not stated.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://arxiv.org/html/2604.23789v3","note":"producer work copy work/muss_v3.html (sha256 equals pin; local read); producer work copy work/muss.html (sha256 equals pin; local read); producer work copy work/MuSS_README.md (sha256 equals pin; local read); producer work copy work/MuSS_download_README.md (sha256 equals pin; local read)"},{"url":"https://github.com/zhang-haojie/muss","note":"cited at https://github.com/zhang-haojie/MuSS; producer work copy work/muss_v3.html (sha256 equals pin; local read); producer work copy work/muss.html (sha256 equals pin; local read); producer work copy work/MuSS_README.md (sha256 equals pin; local read); producer work copy work/MuSS_download_README.md (sha256 equals pin; local read)"},{"url":"https://github.com/zhang-haojie/MuSS","note":"observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"}]},"categories":["T06","T20"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://arxiv.org/html/2604.23789v3","claim":"MuSS (arXiv 2604.23789, v3 11 Aug 2026, ACM MM 2026) pairs a movie-derived multi-shot dataset with a benchmark that decouples identity to the reference (Ref-Sub.Con) from identity between generated shots (Inter-Sub.Con, DINOv2 and InsightFace) and adds ACP-Var and CP-Rate for copy-paste. On 50 Track-2 test items the authors report Phantom 75.16 / 55.20 and VACE-14B 72.10 / 52.40 (Ref / Inter) versus their own EchoShot-based fine-tune 78.50 / 62.27, with CP-Rate 18.50% (Phantom), 21.68% (VACE-14B) and 7.35% (theirs). Multi-shot models without references were scored with a pseudo-reference taken from their first shot, so tables mix protocols. 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On 50 Track-2 test items the authors report Phantom 75.16 / 55.20 and VACE-14B 72.10 / 52.40 (Ref / Inter) versus their own EchoShot-based fine-tune 78.50 / 62.27, with CP-Rate 18.50% (Phantom), 21.68% (VACE-14B) and 7.35% (theirs). Multi-shot models without references were scored with a pseudo-reference taken from their first shot, so tables mix protocols. Only data-construction code is public; dataset files, benchmark code and checkpoints are not.\n\nCurator qualifications: All reported numbers and quotes verify in the pinned v3 HTML. v1 and v3 report identical Track 2 values; v3 adds the EchoShot implementation detail and the limitations audit (E4 and E6 exist only in v3). The pseudo-reference protocol caveat is confirmed. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary.\n\nLimitations: [component_reuse_restriction] Dataset licence pending (README); source clip rights third-party. 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