So, a set of de-noised process of data pre-processing is developed, including the removal of obviously noise points, smoothing filter process of noise points, and smoothing process of point cloud data, etc.
为此,制定了一套数据预处理去除噪声的流程,包括明显噪声点去除,噪声点滤波平滑处理,点云数据的光顺处理等。
参考来源 - 基于激光扫描点云的数据处理技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
In the smoothing process of image, it is very important for nonlinear filter to reserve fringe detail of image while filtering noise.
图像平滑处理中，如何在去除噪声的同时完整地保留图像边缘细节一直是非线性滤波算法研究的热点问题。
The directional chain code is used to record the contour information data according to the trend of the contour, and this will be very convenient for the smoothing process later on.
采用方向链码记录轮廓信息，它依据轮廓走向的顺序来记录数据，这对以后的光顺处理工作将是十分方便的。
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