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arXiv 2404.13400cs.CV

HiVG:面向视觉定位的层级多模态细粒度调制

HiVG: Hierarchical Multimodal Fine-grained Modulation for Visual Grounding

Institute of Automation, Chinese Academy of Sciences(中国科学院自动化研究所);Pengcheng Laboratory(鹏城实验室);School of Artificial Intelligence, University of Chinese Academy of Sciences(中国科学院大学人工智能学院);Harbin Institute of Technology (Shenzhen)(哈尔滨工业大学(深圳))

Linhui Xiao, Xiaoshan Yang, Fang Peng, Yaowei Wang, Changsheng Xu

AI总结:

HiVG提出多层自适应跨模态桥和层级多模态低秩适应范式,通过层级细粒度调制解决多模态预训练与视觉定位之间的任务差距,在五个数据集上验证了有效性。

摘要:

视觉定位旨在通过自然语言定位视觉区域,是一项高度依赖跨模态对齐的任务。现有工作分别利用单模态预训练模型迁移视觉或语言知识,而忽略了多模态对应信息。受对比语言-图像预训练和低秩适应(LoRA)方法近期进展的启发,我们旨在基于多模态预训练解决定位任务。然而,预训练与定位之间存在显著的任务差距。因此,为解决这些差距,我们提出了一种简洁高效的层级多模态细粒度调制框架,即HiVG。具体而言,HiVG由多层自适应跨模态桥和层级多模态低秩适应(HiLoRA)范式组成。跨模态桥可以解决视觉特征与定位所需特征之间的不一致性,并在多层级视觉和文本特征之间建立连接。HiLoRA通过以层级方式从浅层到深层适应跨模态特征,防止感知误差的累积。在五个数据集上的实验结果证明了我们方法的有效性,并展示了显著的定位能力以及良好的能效优势。项目页面:https://github.com/linhuixiao/HiVG。

英文摘要:

Visual grounding, which aims to ground a visual region via natural language, is a task that heavily relies on cross-modal alignment. Existing works utilized uni-modal pre-trained models to transfer visual or linguistic knowledge separately while ignoring the multimodal corresponding information. Motivated by recent advancements in contrastive language-image pre-training and low-rank adaptation (LoRA) methods, we aim to solve the grounding task based on multimodal pre-training. However, there exists significant task gaps between pre-training and grounding. Therefore, to address these gaps, we propose a concise and efficient hierarchical multimodal fine-grained modulation framework, namely HiVG. Specifically, HiVG consists of a multi-layer adaptive cross-modal bridge and a hierarchical multimodal low-rank adaptation (HiLoRA) paradigm. The cross-modal bridge can address the inconsistency between visual features and those required for grounding, and establish a connection between multi-level visual and text features. HiLoRA prevents the accumulation of perceptual errors by adapting the cross-modal features from shallow to deep layers in a hierarchical manner. Experimental results on five datasets demonstrate the effectiveness of our approach and showcase the significant grounding capabilities as well as promising energy efficiency advantages. The project page: https://github.com/linhuixiao/HiVG.

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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