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arXiv 2411.04923cs.CV

VideoGLaMM:一种用于视频像素级视觉定位的大型多模态模型

VideoGLaMM: A Large Multimodal Model for Pixel-Level Visual Grounding in Videos

Mohamed bin Zayed University of AI(穆罕默德·本·扎耶德人工智能大学);Tianjin University(天津大学);Carnegie Mellon University(卡内基梅隆大学);Linköping University(林雪平大学);Australian National University(澳大利亚国立大学)

Shehan Munasinghe, Hanan Gani, Wenqi Zhu, Jiale Cao, Eric Xing, Fahad Shahbaz Khan, Salman Khan

AI总结:

VideoGLaMM通过双视觉编码器和时空解码器实现视频像素级定位,在三个任务上均超越现有方法。

摘要:

视频与文本之间的细粒度对齐因视频中复杂的空间和时间动态而具有挑战性。现有的基于视频的大型多模态模型(LMMs)能够处理基本对话,但在视频中进行精确的像素级定位方面存在困难。为解决这一问题,我们引入了VideoGLaMM,这是一种基于用户提供的文本输入,专为视频中细粒度像素级定位而设计的LMM。我们的设计无缝连接了三个关键组件:一个大型语言模型、一个强调空间和时间细节的双视觉编码器,以及一个用于精确掩码生成的时空解码器。这种连接通过可调的V-L和L-V适配器实现,这些适配器能够实现紧密的视觉-语言(VL)对齐。该架构经过训练,能够将视频内容的空间和时间元素与文本指令同步。为了实现细粒度的定位,我们策划了一个多模态数据集,其中包含使用半自动注释流程生成的详细视觉定位对话,最终产生了38k个视频问答三元组,以及83k个对象和671k个掩码。我们在三个具有挑战性的任务上评估了VideoGLaMM:定位对话生成、视觉定位和指涉视频分割。实验结果表明,我们的模型在所有三个任务上均持续优于现有方法。

英文摘要:

Fine-grained alignment between videos and text is challenging due to complex spatial and temporal dynamics in videos. Existing video-based Large Multimodal Models (LMMs) handle basic conversations but struggle with precise pixel-level grounding in videos. To address this, we introduce VideoGLaMM, a LMM designed for fine-grained pixel-level grounding in videos based on user-provided textual inputs. Our design seamlessly connects three key components: a Large Language Model, a dual vision encoder that emphasizes both spatial and temporal details, and a spatio-temporal decoder for accurate mask generation. This connection is facilitated via tunable V-L and L-V adapters that enable close Vision-Language (VL) alignment. The architecture is trained to synchronize both spatial and temporal elements of video content with textual instructions. To enable fine-grained grounding, we curate a multimodal dataset featuring detailed visually-grounded conversations using a semiautomatic annotation pipeline, resulting in a diverse set of 38k video-QA triplets along with 83k objects and 671k masks. We evaluate VideoGLaMM on three challenging tasks: Grounded Conversation Generation, Visual Grounding, and Referring Video Segmentation. Experimental results show that our model consistently outperforms existing approaches across all three tasks.

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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