arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2604.03224eess.IVcs.CV
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HyperCT:用于统一胸部CT分析的低秩超网络

HyperCT: Low-Rank Hypernet for Unified Chest CT Analysis

Cornell Tech and Cornell University(康奈尔科技校区与康奈尔大学);Columbia University Irving Medical Center(哥伦比亚大学欧文医学中心);Weill Cornell Medicine(威尔康奈尔医学院)

Fengbei Liu, Sunwoo Kwak, Hao Phung, Nusrat Binta Nizam, Ilan Richter, Nir Uriel, Hadar Averbuch-Elor, Daborah Estrin, Mert R. Sabuncu

AI总结:

HyperCT通过动态调整视觉Transformer骨干网络,结合低秩适应技术,实现高效的多任务统一分析,优于现有基线方法。

摘要:

非对比胸部CT为传统肺部和机会性非肺部筛查提供了丰富的机会。虽然多任务学习(MTL)可以统一这些多样化任务,但标准硬参数共享方法在建模不同病理学时往往效果不佳。我们提出了HyperCT框架,通过超网络动态调整视觉Transformer骨干网络。为确保计算效率,我们整合了低秩适应(LoRA),使模型能够回归任务特定的低秩权重更新,而不是完整参数。在大规模放射学和心血管学任务数据集上验证,方法在性能上优于各种强基线,提供了一种统一且参数高效的患者评估解决方案。我们的代码可在https://github.com/lfb-1/HyperCT获取。

英文摘要:

Non-contrast chest CTs offer a rich opportunity for both conventional pulmonary and opportunistic extra-pulmonary screening. While Multi-Task Learning (MTL) can unify these diverse tasks, standard hard-parameter sharing approaches are often suboptimal for modeling distinct pathologies. We propose HyperCT, a framework that dynamically adapts a Vision Transformer backbone via a Hypernetwork. To ensure computational efficiency, we integrate Low-Rank Adaptation (LoRA), allowing the model to regress task-specific low-rank weight updates rather than full parameters. Validated on a large-scale dataset of radiological and cardiological tasks, \method{} outperforms various strong baselines, offering a unified, parameter-efficient solution for holistic patient assessment. Our code is available at https://github.com/lfb-1/HyperCT.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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