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arXiv 2407.09648cs.CV
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3x2:通过2D语义对应实现3D物体部件分割

3x2: 3D Object Part Segmentation by 2D Semantic Correspondences

Georgia Institute of Technology(佐治亚理工学院);Meta AI, FAIR(Meta AI FAIR);University of Illinois Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校)

Anh Thai, Weiyao Wang, Hao Tang, Stefan Stojanov, Matt Feiszli, James M. Rehg

AI总结:

针对3D部件分割标注数据稀缺的问题,提出3-By-2方法,借助预训练模型特征与2D-3D语义几何对应,利用少量3D标注或丰富2D标注实现SOTA性能,还支持跨类别标签迁移。

摘要:

3D物体部件分割在计算机视觉应用中至关重要。尽管2D物体部件分割已取得长足进展,但3D方向的相关研究受关注较少,部分原因在于带标注的3D数据集稀缺且采集成本高昂。本研究提出利用少量带标注的3D形状或标注丰富的2D数据集来完成3D物体部件分割,推出名为3-By-2的新方法,在不同粒度级别的多个基准测试上取得了SOTA(当前最优)性能。该方法借助预训练基础模型的特征,利用语义与几何对应关系,克服了3D标注有限的难题,还能利用现有2D标签实现高效的3D物体部件分割。3-By-2方法可适配多种部件分类体系与粒度,展现出跨不同物体类别的部件标签迁移能力。项目主页:https://ngailapdi.github.io/projects/3by2/

英文摘要:

3D object part segmentation is essential in computer vision applications. While substantial progress has been made in 2D object part segmentation, the 3D counterpart has received less attention, in part due to the scarcity of annotated 3D datasets, which are expensive to collect. In this work, we propose to leverage a few annotated 3D shapes or richly annotated 2D datasets to perform 3D object part segmentation. We present our novel approach, termed 3-By-2 that achieves SOTA performance on different benchmarks with various granularity levels. By using features from pretrained foundation models and exploiting semantic and geometric correspondences, we are able to overcome the challenges of limited 3D annotations. Our approach leverages available 2D labels, enabling effective 3D object part segmentation. Our method 3-By-2 can accommodate various part taxonomies and granularities, demonstrating interesting part label transfer ability across different object categories. Project website: \url{https://ngailapdi.github.io/projects/3by2/}.

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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