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In the semantics mapping construction of Simultaneous Localization And Mapping (SLAM) algorithm, to solve the problem that the semantics information extracted by using deep learning technology contains noise, this paper proposes a representation method for semantic observation by probabilistic grid. The influence of noise is reduced by grid matching and probability updating, in this way, a clear map can be incrementally constructed without auxiliary means like features matching. The effectiveness of the proposed method is verified by experiments in which clear zebra crossings and lane lines are contained in the constructed map.
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在同步定位与地图构建(SLAM)算法构建语义地图的过程中,为解决使用深度学习技术提取的语义信息中含有噪声的问题,提出通过网格的概率表征语义观测的语义匹配法,结合网格匹配和概率更新降低噪声的影响,无需特征点匹配等辅助手段即可增量地构建清晰的地图。基于实车数据构建的地图所包含的斑马线和车道线均清晰准确,证明了该方法的有效性。
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里程计、NDT及概率网格建图轨迹, figureFileSmall=e9SHsqwj41yJbLbm2jqeng==, figureFileBig=eJ0tpQHb+mqtPPcdz+4qNw==, tableContent=null), ArticleFig(id=1200066390318215760, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200066379102646315, language=EN, label=null, caption=null, figureFileSmall=jJ/YDz/Ths5M0u8o4pc04w==, figureFileBig=TKM80L21Ymv24yIEsjcagg==, tableContent=null), ArticleFig(id=1200066390481793628, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200066379102646315, language=CN, label=图10, caption=
NDT与概率网格建图RPE曲线, figureFileSmall=jJ/YDz/Ths5M0u8o4pc04w==, figureFileBig=TKM80L21Ymv24yIEsjcagg==, tableContent=null), ArticleFig(id=1200066390595039843, tenantId=1146029695717560320, journalId=1189918454225211397, articleId=1200066379102646315, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| RPE参数 | 基于NDT法 构建的地图 | 基于概率网格法构建的地图 |
| 最大误差 | 1.983 701 | 0.676 627 |
| 平均误差 | 0.039 666 | 0.071 272 2 |
| 中值误差 | 0.021 386 | 0.031 323 5 |
| 最小误差 | 0.002 756 | 0.002 144 71 |
| 均方根误差 | 0.120 422 | 0.127 398 |
| 和方差 | 5.061 011 | 5.35 598 |
| 标准差 | 0.113 702 | 0.105 596 |
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相对位姿误差比较 m
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| RPE参数 | 基于NDT法 构建的地图 | 基于概率网格法构建的地图 |
| 最大误差 | 1.983 701 | 0.676 627 |
| 平均误差 | 0.039 666 | 0.071 272 2 |
| 中值误差 | 0.021 386 | 0.031 323 5 |
| 最小误差 | 0.002 756 | 0.002 144 71 |
| 均方根误差 | 0.120 422 | 0.127 398 |
| 和方差 | 5.061 011 | 5.35 598 |
| 标准差 | 0.113 702 | 0.105 596 |
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