Changes between Version 10 and Version 11 of Processing/TerrascanTips


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Timestamp:
Oct 22, 2008 11:10:16 AM (11 years ago)
Author:
mark1
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  • Processing/TerrascanTips

    v10 v11  
    1616=== Point classification ===
    1717This is an important part of the QC procedure to remove noisy points. You can make a macro and save it to use again. See the LIDAR notes on how to classify the points. Once classified we may want to strip the points of a certain classification off the LAS file. (Example - low points). This can be done by selecting "Point -> Delete -> By point class". Then select the class you want to delete. You can use "Classify -> Add point to ground" to add individual/groups of points to a certain class by selecting them. This is important because your classification routine will most likely misclassify some points.
     18
     19To remove haze layers, you can classify by elevation selecting points, say, >200m off the ground and classifying them as low points. It is suggested that all points to be removed be classified as low points (even if they are high).