Trajectory Accuracy Estimates

TerraMatch allows for the correction of data that has position errors that vary over time, for example mobile data that was gathered in downtown areas with GPS drop-out. This is accomplished by computing tie line fluctuations that compute a correction curve along the trajectory to account for positional uncertainty. Each discrete position along a trajectory…

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Classify by Flightline Number

Sometimes it is desirable to classify all of the points from one flight line into a particular class. This can be accomplished using the Modify Numbering routine.  This routine is designed to change the line numbers of your points, as well as changing the classification of the points on a per flight line basis. To…

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Analyze Relative accuracy between flight lines with the Seamline Analysis tool

The recently published United States Geological Survey National Geospatial Program’s LIDAR Base Specification Version 1.01 specifies that the “requirements for relative accuracy within overlap between adjacent swaths of data should be less than or equal to 10 cm RMSEz”. In version 2011.1, LP360 introduced a new tool which allows for the ability to check the…

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