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arXiv 2109.09035cs.RO
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连续时间样条视觉惯性里程计

Continuous-Time Spline Visual-Inertial Odometry

University of Minnesota Twin Cities(明尼苏达大学双城分校);Minnesota Robotics Institute(明尼苏达机器人研究所)

Jiawei Mo, Junaed Sattar

摘要:

我们提出了一个连续时间样条为基础的制定视觉惯性里程计(VIO)。具体来说,我们的姿势作为一个三次样条,其时间导数用于合成线加速度和角速度,这是比较从惯性测量单元(IMU)的最佳状态估计的测量。样条边界条件在摄像机和IMU之间建立约束,我们将VIO表示为约束非线性优化问题。连续时间姿态表示使得解决许多VIO挑战成为可能,例如,卷帘快门失真和传感器可能缺乏同步。我们在两个公开的数据集上进行实验,证明了我们的方法的最先进的准确性和实时计算效率。

英文摘要:

We propose a continuous-time spline-based formulation for visual-inertial odometry (VIO). Specifically, we model the poses as a cubic spline, whose temporal derivatives are used to synthesize linear acceleration and angular velocity, which are compared to the measurements from the inertial measurement unit (IMU) for optimal state estimation. The spline boundary conditions create constraints between the camera and the IMU, with which we formulate VIO as a constrained nonlinear optimization problem. Continuous-time pose representation makes it possible to address many VIO challenges, e.g., rolling shutter distortion and sensors that may lack synchronization. We conduct experiments on two publicly available datasets that demonstrate the state-of-the-art accuracy and real-time computational efficiency of our method.

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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