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arXiv 2201.11608cs.CVcs.AI
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一种基于连续地面估计的三维动态目标识别方法

A Probabilistic Framework for Dynamic Object Recognition in 3D Environment With A Novel Continuous Ground Estimation Method

K.N. Toosi University of Technology(图西理工大学)

Pouria Mehrabi

摘要:

在这篇论文中,我们提出了一个概率性的框架,用于三维环境中的动态目标识别。在ROS中使用C++和Python开发了一个软件包,用于执行检测和跟踪任务。在此基础上,提出了一种新的基于高斯过程回归(GPR)的地面点检测方法。假设地面行为仅表现出局部输入相关的平滑性。得到了籽粒的长度尺度。贝叶斯推理是用\textit{Maximum a Posteriori}准则实现的。对数边际似然函数被假定为多任务目标函数,以表示在每个帧处的地面的全帧无偏视图,因为相邻段在具有共享超参数值的同时在不平坦场景中可能不具有相似的地面结构。仿真结果表明,该方法在不平坦和粗糙的场景中的有效性,优于基于类高斯过程的地面分割方法。

英文摘要:

In this thesis a probabilistic framework is developed and proposed for Dynamic Object Recognition in 3D Environments. A software package is developed using C++ and Python in ROS that performs the detection and tracking task. Furthermore, a novel Gaussian Process Regression (GPR) based method is developed to detect ground points in different urban scenarios of regular, sloped and rough. The ground surface behavior is assumed to only demonstrate local input-dependent smoothness. kernel's length-scales are obtained. Bayesian inference is implemented sing \textit{Maximum a Posteriori} criterion. The log-marginal likelihood function is assumed to be a multi-task objective function, to represent a whole-frame unbiased view of the ground at each frame because adjacent segments may not have similar ground structure in an uneven scene while having shared hyper-parameter values. Simulation results shows the effectiveness of the proposed method in uneven and rough scenes which outperforms similar Gaussian process based ground segmentation methods.

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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