arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.09487cs.CVcs.AIcs.RO

SAGE: SLAM with Appearance and Geometry Prior for Endoscopy

Johns Hopkins University(约翰斯·霍普金斯大学);Johns Hopkins Medical Institutions(约翰斯·霍普金斯医疗机构);Galen Robotics, Inc(盖伦机器人公司)

Xingtong Liu, Zhaoshuo Li, Masaru Ishii, Gregory D. Hager, Russell H. Taylor, Mathias Unberath

英文摘要:

In endoscopy, many applications (e.g., surgical navigation) would benefit from a real-time method that can simultaneously track the endoscope and reconstruct the dense 3D geometry of the observed anatomy from a monocular endoscopic video. To this end, we develop a Simultaneous Localization and Mapping system by combining the learning-based appearance and optimizable geometry priors and factor graph optimization. The appearance and geometry priors are explicitly learned in an end-to-end differentiable training pipeline to master the task of pair-wise image alignment, one of the core components of the SLAM system. In our experiments, the proposed SLAM system is shown to robustly handle the challenges of texture scarceness and illumination variation that are commonly seen in endoscopy. The system generalizes well to unseen endoscopes and subjects and performs favorably compared with a state-of-the-art feature-based SLAM system. The code repository is available at https://github.com/lppllppl920/SAGE-SLAM.git.

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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