arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2407.13337cs.CV
收藏

长期三维点跟踪通过代价体积融合

Long-Term 3D Point Tracking By Cost Volume Fusion

Oregon State University(俄勒冈州立大学)

Hung Nguyen, Chanho Kim, Rigved Naukarkar, Li Fuxin

AI总结:

本文提出首个无需测试时微调的三维长期点跟踪深度学习框架,通过代价体积融合模块整合外观与运动信息,显著优于场景流链式及二维点跟踪方法。

摘要:

长期点跟踪对于更好地理解物理世界中的非刚性运动至关重要。近年来,深度学习方法已被引入长期点跟踪领域,但大多数先前的工作主要在二维空间中运行。尽管这些方法受益于成熟的骨干网络和匹配框架,但它们产生的运动在三维物理世界中并不总是合理的。在本文中,我们提出了首个用于三维长期点跟踪的深度学习框架,该框架能够泛化到新的点和视频,而无需在测试时进行微调。我们的模型包含一个代价体积融合模块,通过变换器架构有效整合多个过去的外观和运动信息,显著提升了整体跟踪性能。在三维跟踪性能方面,我们的模型显著优于简单的场景流链式方法和先前的二维点跟踪方法,即使在合成场景中使用真实深度和相机位姿将二维点轨迹反投影到三维空间也是如此。

英文摘要:

Long-term point tracking is essential to understand non-rigid motion in the physical world better. Deep learning approaches have recently been incorporated into long-term point tracking, but most prior work predominantly functions in 2D. Although these methods benefit from the well-established backbones and matching frameworks, the motions they produce do not always make sense in the 3D physical world. In this paper, we propose the first deep learning framework for long-term point tracking in 3D that generalizes to new points and videos without requiring test-time fine-tuning. Our model contains a cost volume fusion module that effectively integrates multiple past appearances and motion information via a transformer architecture, significantly enhancing overall tracking performance. In terms of 3D tracking performance, our model significantly outperforms simple scene flow chaining and previous 2D point tracking methods, even if one uses ground truth depth and camera pose to backproject 2D point tracks in a synthetic scenario.

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。

↑