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Leonid Sigal

2 papers indexed

arxivcs.CV2026-07-17

When Can Test-Time Adaptation Help Zero-Shot CT Vision-Language Models?

Ailar Mahdizadeh, Puria Azadi Moghadam, Xiangteng He, Leonid Sigal

3D CT vision-language models (VLMs) classify abnormalities from text prompts in a zero-shot manner, enabling cross-institution deployment where labels are scarce and clinical tasks shift faster than supervised models can be retrained. A real CT scan, however, typically contains s…

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arxivcs.CVcs.AI2026-07-04

ViPo-MLLM: Visual-Pose Multimodal LLM for Gloss-Free Sign Language Translation

Ahmed Abul Hasanaath, Bicheng Xu, Mir Rayat Imtiaz Hossain, Leonid Sigal, Hamzah Luqman

Gloss-free Sign Language Translation (SLT) translates sign language videos into spoken-language sentences without gloss annotations, avoiding costly labeling but requiring fine-grained modeling of hands, body, and facial cues. Existing methods often use single-modality or weakly…

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