基于3D邻域激光扫描数据随机噪声滤波

Noise Filtering of Laser Scanned Data by Use of 3D Neighbors

在分析激光扫描数据及其随机噪声的特点基础上,提出了激光扫描数据的3D邻域随机噪声滤波的新方法。实例结果表明:有效滤除了激光扫描数据中的随机噪声,在扫描线方向和扫描方向,数据的曲率分布更合理,数据平滑效果较好。

The noise filtering method has limitation on processing laser scanned data along the scan way. On the basis of analyzing the characteristic of laser - scanned data and its impulse noise, a new noise filter method was proposed on the basis of the new concept, 3D neighbors of laser scanned data. Example indicated that the proposed filter method outperforms other filters in noise smoothing along the scan - line way. The proposed filter method can also achieve good result in noise smoothing along the scan way.