Personalized Korean Lipreading as Visual Speech Recognition: Transfer, Census and Adaptation on OLKAVS
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Electrical Engineering and Systems Science > Audio and Speech Processing
arXiv:2609.28988 (eess)
[Submitted on 24 Sep 2026]
Title:Personalized Korean Lipreading as Visual Speech Recognition: Transfer, Census and Adaptation on OLKAVS
View a PDF of the paper titled Personalized Korean Lipreading as Visual Speech Recognition: Transfer, Census and Adaptation on OLKAVS, by Se Un Park and 3 other authors
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Abstract:We present a personalized Korean visual speech recognition (VSR) system and quantify, on the nine-camera OLKAVS corpus, the gap between the population-level benchmark score and an individual user's error. A video-only Conformer initialized from English-trained weights attains 9.95 - 12.19% character error rate (CER) under the corpus protocol against the published 26.64, and 19.00 - 21.52 on unseen wording. Per speaker, CER spans 1.0 to 52.2%, with seen wording lowering CER by 7.0 - 9.0 points and professional delivery and spontaneous speech raising it by 8.5 - 10.5 and 12.7 points. A low-rank adapter with 4.6% of the parameters, trained on 4 to 29 minutes of the user's frontal video, lowers the CER of twelve high-error speakers by 2.13 to 3.58 points, transfers to every camera without loss, and keeps 85% of the full fine-tuning gain at 12% of its cost to other speakers. Cameras above the mouth plane add about six CER points as a constant offset that training on all views keeps small.
| Comments: | Submitted to ICASSP 2027. 4 pages plus references |
| Subjects: | Audio and Speech Processing (eess.AS); Computation and Language (cs.CL); Computer Vision and Pattern Recognition (cs.CV) |
| Cite as: | arXiv:2609.28988 [eess.AS] |
| (or arXiv:2609.28988v1 [eess.AS] for this version) | |
| https://doi.org/10.48550/arXiv.2609.28988
arXiv-issued DOI via DataCite (pending registration)
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View a PDF of the paper titled Personalized Korean Lipreading as Visual Speech Recognition: Transfer, Census and Adaptation on OLKAVS, by Se Un Park and 3 other authors
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