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[discuss] 关于位置融合的问题 #5

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Wu-ZW opened this issue Aug 9, 2024 · 4 comments
Closed

[discuss] 关于位置融合的问题 #5

Wu-ZW opened this issue Aug 9, 2024 · 4 comments

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@Wu-ZW
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Wu-ZW commented Aug 9, 2024

感谢作者代码的开源工作。有以下几个疑问未能解决:

  1. VO只融合了绝对位置信息(x,y)吗?在浏览代码时,发现其中利用了uav文件夹中的gt.txt真值信息?
  2. VO的提供的6自由度信息包含尺度信息吗?还是利用真值进行了尺度的恢复?
    image
@Wu-ZW Wu-ZW changed the title 疑问 [discuss] 关于位置融合的问题 Aug 9, 2024
@LuoXubo
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LuoXubo commented Aug 19, 2024

您好,感谢您的提醒,已修改错误。VO只是融合了绝对位姿,即图中的resX和resY以及置信度conf。其他的参数,如高度z和四元数并未参与位姿融合。
VO提供的6自由度位姿不包含尺度信息,需要通过后端提供的RT矩阵进行对齐。

@Wu-ZW
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Wu-ZW commented Aug 19, 2024

感谢回复!
1 另外align函数的s,R,t 变换是固定值,是如何计算得到的?
2 AbsLoc中的slam.txt slam_gt.txt gt.txt 分别是起什么作用? 可以去掉吗?

@LuoXubo
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LuoXubo commented Aug 20, 2024

您好,

  1. 仿真引擎生成数据的同时,会生成以米为单位的轨迹文件,这里的s,R,t是像素坐标系到仿真引擎坐标系的转换矩阵,通过evo工具可以估算得出。
  2. 这些是开发过程中用到的中间文件,如果不进行量化评估的话,可以删除。

@Wu-ZW
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Wu-ZW commented Aug 22, 2024

Thanks a lot~

@LuoXubo LuoXubo closed this as completed Nov 16, 2024
@LuoXubo LuoXubo pinned this issue Nov 16, 2024
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