3D geological modeling data can only be measured rarely or indirectly, as it is necessary to interpolate the sparse and uneven geological data in the study area. Given the problems in the interpolation of data from different sources, we have introduced stratum interpolation and visualization technology based on the moving least squares (MLS) method and Poisson surface reconstruction method. The MLS method can not only obtain a smooth stratum surface by adjusting the relevant parameters of its interpolation, but it can also ensure the similarity of the stratum in space and the difference when far part. At the same time, it combines the Poisson reconstruction method and improves it, so that it can reconstruct the open surface by using a virtual outer frame from the original closed figure reconstruction theory. This paper takes the exploration line profile and geological boreholes in Xiushan County, Chongqing as an example, and visualizes them by fusion and the interpolation of data from different sources. The resulting stratum surface is smooth, continuous, accurate, and highly portable.

3D地质建模数据只能进行很少或间接的测量，因为有必要对研究区域中稀疏且不均匀的地质数据进行插值。鉴于来自不同来源的数据插值中存在的问题，我们引入了基于移动最小二乘法（MLS）和泊松曲面重构方法的地层插值和可视化技术。MLS方法不仅可以通过调整其插值的相关参数来获得光滑的地层表面，而且还可以确保空间中地层的相似性以及远处部分的差异。同时，它结合了Poisson重建方法并对其进行了改进，从而可以使用原始闭合图形重建理论中的虚拟外部框架来重建开放曲面。本文以重庆市秀山县的勘探线剖面和地质钻孔为例，并通过融合和插值不同来源的数据将其可视化。所得的地层表面光滑，连续，准确且高度可移植。