[Pix4d boutique tutorial] Pix4d empty three post-processing: point cloud classification and filtering, DSM fine editing to generate DEM, detailed contour generation case

DEM result preview:
contour result preview:

After the end of Pix4d's internal business, it will generate point cloud, DOM and DSM products. Generally, if the DOM accuracy is not up to standard (such as noise on the edge of the house), you can directly edit the DOM in the mosaic editor. The main work of processing is point cloud classification and DSM fine editing to generate DEM, and then accurate contour lines can be generated and feature elevation points can be extracted. So how to classify point clouds and how to compile DEM? This article will explain in the form of case.