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关掉闭环后的漂移 #1
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你好,想问一下你知道为什么这个误差项里面为什么会这么计算吗?
比较不明白的是这个 T dx = cos ( thr ) *tmp_dx + sin ( thr ) *tmp_dy; |
您好,我想咨询一下您当时运行时有没有出现下面的问题: [dre_slam_node-1] process has died [pid 5690, exit code -6, cmd /home/lemon/dre_ws/devel/lib/dre_slam/dre_slam_node __name:=dre_slam_node __log:=/home/lemon/.ros/log/53f748fa-b410-11ec-a8c3-38fc98c5a1e8/dre_slam_node-1.log]. |
您好:
首先非常感谢您的开源.论文和代码都写的非常棒, 简洁明了. 用您的数据集测试的结果也比较好.
我用我们自己的robot采集的数据集进行测试,走一个大圈,大概60-70米之后,回到初始位置,关闭闭环之后,漂移比较大x:-0.178m, y:0.945m, theta:9.42度. 打开回环之后: x: -0.0118m, y:0.00549m, theta: 2.8度. 而单里程计计算的结果为: x: -0.014675, y: 0.1735, theta: 4.68.
也就是说,如果没有回环, 系统计算的结果没有单里程计计算的结果准确.
想咨询下, 您有没有做过类似的测试,是否也有如此的情况. 我现在怀疑有几个原因, 一是,一路上深度相机的有效部分比较少,因为这一圈是一个走廊,两边很多玻璃,好几处地方的高度有几cm的差别. 二是, rgbd相机与odom的外参标定不够准确.
谢谢,麻烦您了
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