OmniV-Med: Scaling Medical Vision-Language Model for Universal Visual Understanding

Fuente: arXiv
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Main Authors: Jiang, Songtao, Wang, Yuan, Song, Sibo, Zhang, Yan, Meng, Zijie, Lei, Bohan, Wu, Jian, Sun, Jimeng, Liu, Zuozhu
Format: Preprint
Published: 2025
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author Jiang, Songtao
Wang, Yuan
Song, Sibo
Zhang, Yan
Meng, Zijie
Lei, Bohan
Wu, Jian
Sun, Jimeng
Liu, Zuozhu
author_facet Jiang, Songtao
Wang, Yuan
Song, Sibo
Zhang, Yan
Meng, Zijie
Lei, Bohan
Wu, Jian
Sun, Jimeng
Liu, Zuozhu
contents The practical deployment of medical vision-language models (Med-VLMs) necessitates seamless integration of textual data with diverse visual modalities, including 2D/3D images and videos, yet existing models typically employ separate encoders for different modalities. To address this limitation, we present OmniV-Med, a unified framework for multimodal medical understanding. Our technical contributions are threefold: First, we construct OmniV-Med-Instruct, a comprehensive multimodal medical dataset containing 252K instructional samples spanning 14 medical image modalities and 11 clinical tasks. Second, we devise a rotary position-adaptive encoder that processes multi-resolution 2D/3D images and videos within a unified architecture, diverging from conventional modality-specific encoders. Third, we introduce a medical-aware token pruning mechanism that exploits spatial-temporal redundancy in volumetric data (e.g., consecutive CT slices) and medical videos, effectively reducing 60\% of visual tokens without performance degradation. Empirical evaluations demonstrate that OmniV-Med-7B achieves state-of-the-art performance on 7 benchmarks spanning 2D/3D medical imaging and video understanding tasks. Notably, our lightweight variant (OmniV-Med-1.5B) attains comparable performance while requiring only 8 RTX3090 GPUs for training and supporting efficient long-video inference. Data, code and model will be released.
format Preprint
id arxiv_https___arxiv_org_abs_2504_14692
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle OmniV-Med: Scaling Medical Vision-Language Model for Universal Visual Understanding
Jiang, Songtao
Wang, Yuan
Song, Sibo
Zhang, Yan
Meng, Zijie
Lei, Bohan
Wu, Jian
Sun, Jimeng
Liu, Zuozhu
Computation and Language
The practical deployment of medical vision-language models (Med-VLMs) necessitates seamless integration of textual data with diverse visual modalities, including 2D/3D images and videos, yet existing models typically employ separate encoders for different modalities. To address this limitation, we present OmniV-Med, a unified framework for multimodal medical understanding. Our technical contributions are threefold: First, we construct OmniV-Med-Instruct, a comprehensive multimodal medical dataset containing 252K instructional samples spanning 14 medical image modalities and 11 clinical tasks. Second, we devise a rotary position-adaptive encoder that processes multi-resolution 2D/3D images and videos within a unified architecture, diverging from conventional modality-specific encoders. Third, we introduce a medical-aware token pruning mechanism that exploits spatial-temporal redundancy in volumetric data (e.g., consecutive CT slices) and medical videos, effectively reducing 60\% of visual tokens without performance degradation. Empirical evaluations demonstrate that OmniV-Med-7B achieves state-of-the-art performance on 7 benchmarks spanning 2D/3D medical imaging and video understanding tasks. Notably, our lightweight variant (OmniV-Med-1.5B) attains comparable performance while requiring only 8 RTX3090 GPUs for training and supporting efficient long-video inference. Data, code and model will be released.
title OmniV-Med: Scaling Medical Vision-Language Model for Universal Visual Understanding
topic Computation and Language
url https://arxiv.org/abs/2504.14692