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Machine Translation for Sign Languages
Ozge Mercanoglu Sincan, Anton Pelykh, Edward Fish +7
Sign language machine translation has progressed substantially over the past decade, evolving from isolated sign recognition to end-to-end translation systems. Advances in pose est…
SignRefine: Adapting Foundational Video Models for Sign Language Generation
Anton Pelykh, Edward Fish, Ozge Mercanoglu Sincan +1
Sign language video generation demands precise hand and facial articulation, yet modern video diffusion models, trained predominantly on spoken-language video, produce artifacts th…
Beyond BLEU: A Case for Redefining Sign Language Translation Benchmarks
Oline Ranum, Edward Fish, Simon Hadfield +1
BLEU-4 is the standard metric for evaluating sign language translation (SLT), but spoken-language metrics may not adequately reflect sign language proficiency. The multimodal, low-…
BackTranslation2.0 -- A Linguistically Motivated Metric to Assess Sign Language Production
Oliver Cory, Maksym Ivashechkin, Karahan Sahin +6
Sign Languages (SLs) are the primary means of communication for millions of deaf individuals, yet existing evaluation metrics for generated SL remain simplistic and poorly aligned…
What's the Point? Spatial Grammar & Index Resolution for Sign Language Processing
Oline Ranum, Simon Hadfield, Richard Bowden
Sign language models are predominantly trained with gloss-sequence or text supervision, thereby under-modeling non-lexical and productive constructions. One comparatively tractable…
SignAgent: Agentic LLMs for Linguistically-Grounded Sign Language Annotation and Dataset Curation
Oliver Cory, Ozge Mercanoglu Sincan, Richard Bowden
This paper introduces SignAgent, a novel agentic framework that utilises Large Language Models (LLMs) for scalable, linguistically-grounded Sign Language (SL) annotation and datase…
M3T: Discrete Multi-Modal Motion Tokens for Sign Language Production
Alexandre Symeonidis-Herzig, Jianhe Low, Ozge Mercanoglu Sincan +1
Sign language production requires more than hand motion generation. Non-manual features, including mouthings, eyebrow raises, gaze, and head movements, are grammatically obligatory…
SignSparK: Efficient Multilingual Sign Language Production via Sparse Keyframe Learning
Jianhe Low, Alexandre Symeonidis-Herzig, Maksym Ivashechkin +2
Sign Language Production (SLP) faces a fundamental trade-off: direct text-to-pose models suffer from regression-to-the-mean effects, while dictionary-retrieval methods produce disj…