Lab 1: LAS Ground and Water Classification
Goals and Background: The main objective for this lab is to classify LAS preprocessed points into water and ground points which could then be used in many different applications. To do this the ground filtering algorithm is used to classify ground points and remove low outliers, manual cleanup is employed to complete classification, and water body feature breaklines are used to identify water points. Methodology: Part 1: All LAS files from a flight over Lake County, Illinois were brought into LP360 64-bit for Windows with read and write abilities along with a raster NAIP image of the study area for contextual information. The data was then displayed by classification to see the initial state of the data: all points had not been classified ( Figure 1 ). Figure 1: All points unclassified The live view window was then opened, and after filtering by all points the autoselect all classes being used on active LAS layer button was selected to show the classes the points displaye...