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Visualization
LiDAR point clouds most commonly saved into LAS or more compressed LAZ format. That is the ASPRS standard. LAS format contained the following information: X,Y,Z, Uncorrected intensity, Return Number, Number of return (given pulse), Classification flags, scanner channel, Scan direction Flag, Edge of flight line, Classification (based on ASPRS standard), User data, Scan angle, Point source ID, GPS Time, Red, Green, Blue (RGB is coming from the fusion of simultaneously measured imagery data), NIR. LAS/LAZ file format is not capable of saving a large number of point cloud related attributes.
- FugroViewer General point cloud visualization tool, without export and edit opportunities. However capable for 2D, 3D and cross-plot visualization based on the different attributes (only las file defined attributes).
-Cloud Compare It is capable of visualizing several numbers of defined extra attributes (from ASCII txt, csv file) and even random colorization for segmentation result visualization. In this software was implemented a large number of different LiDAR file format like pcd (PCL library), ply, obj (CAD formats), etc.