Improving obstacle boundary representations in predictive occupancy mapping
Improving obstacle boundary representations in predictive occupancy mapping
复制标题
改进预测占用映射中的障碍物边界表示
DOI:
10.1016/j.robot.2022.104077
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发表时间:
2022
影响因子:
4.3
通讯作者:
Englot, Brendan
中科院分区:
文献类型:
--
作者:
Pearson, Erik;Doherty, Kevin;Englot, Brendan
Predictive, inference-based occupancy mapping has been used successfully in many instances to create accurate and descriptive maps from sparse data, defining occupied space in a manner suitable to support autonomous navigation. However, one key drawback of inferring occupancy based largely on the proximity of range sensor observations is inaccuracy at the boundary between occupied and free space, where sparse coverage by the sensor data can be misinterpreted. To obtain a more accurate representation of the boundary between free and occupied space, we propose several modifications to a recently published occupancy mapping algorithm that uses Bayesian generalized kernel inference. In particular, our proposed algorithm distinguishes betweenunknownmap cells with insufficient observations, and those which areuncertaindue to disagreement among numerous observations, in a predictive, inference-based occupancy map. This distinction is key to our improved ability to capture ambiguities arising at the boundary between free and occupied space. We validate our approach using synthetic range data from a simulated environment and demonstrate real-time mapping performance using range data acquired by a ground robot operating in an underground mine.
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影响因子:
5.2
作者:
Lu Gan;Ray Zhang;J. Grizzle;R. Eustice;Maani Ghaffari
通讯作者:
Lu Gan;Ray Zhang;J. Grizzle;R. Eustice;Maani Ghaffari
影响因子:
3.5
作者:
Hornung, Armin;Wurm, Kai M.;Burgard, Wolfram
通讯作者:
Burgard, Wolfram
影响因子:
5.2
作者:
Duberg, Daniel;Jensfelt, Patric
通讯作者:
Jensfelt, Patric
DOI:
10.1177/1729881420910530
发表时间:
2020-03-01
影响因子:
2.3
作者:
Macenski, Steve;Tsai, David;Feinberg, Max
通讯作者:
Feinberg, Max
影响因子:
9.2
作者:
O'Callaghan, Simon T.;Ramos, Fabio T.
通讯作者:
Ramos, Fabio T.