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Open3D 计算点云的均值(质心)与协方差
2022-08-09 02:10:00 【BigFish_Galaxy】
一、简介
如果数据量较小,其实点云的质心与协方差的求解一般不会有什么问题,但如果数据量很大,那么求解点云质心以及协方差就变得不那么容易了。这主要是因为计算机的精度有限,非常大的数值计算机存储上也存在困难,因此也就出现了渐进式求取这些值的方法,有兴趣的同学可以参看文章:https://marvinsblog.net/post/2018-06-26-running-variance/以及https://blog.csdn.net/trailbrazer/article/details/108839088。不过这些Open3D中已经提供了相关的函数,可以让我们很容易就获得这些值。
二、代码实现
相关配置可以参看:Open3D C++文章目录汇总中的基础配置部分,相关代码如下所示:
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