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GeoCue and BayesMap Announce StripAlign for True View EVO

By Eric Van Rees - 2nd November 2021 - 09:27

GeoCue Group and BayesMap Solutions LLC announced the release of our new geometric correction software for the True View series of small Unmanned Aerial Systems (sUAS) 3D Imaging Systems (3DIS).

Historically, geometric correction of LIDAR data has been an arduous process requiring Byzantine parameter adjustments and numerous trial runs. GeoCue has been working with BayesMap for the past several years to develop an add-on to our True View EVO software that allows “one button click” geometric correction of sUAS LIDAR data with no need to adjust algorithm parameters. This effort has culminated in the creation, by BayesMap, of StripAlign for EVO (SAfE).

Geometric errors are introduced into LIDAR data sets by two general mechanisms (assuming one has a good sensor to start with!); poor system calibration and/or GNSS/IMU estimation errors during flight. Calibration can be addressed by being very particular with system rigidity during design and developing exacting calibration procedures. GeoCue does both of these exceedingly well. GNSS and IMU estimation errors cannot be corrected via sensor design since these errors are inherent in the position and attitude sensors during flight. We do mitigate this in the True View sensors by using very high-quality Trimble/Applanix APX series Position and Orientation Systems (POS) but data can exhibit small geometric inconsistence, especially when combining data from multiple flights. BayesMap StripAlign for EVO detects and corrects these errors via an application of sensor-specific mathematical modeling.

SAfE is an optional extension to True View EVO, GeoCue’s post-processing and exploitation software bundled with True View sensors, that integrates directly into the workflow using EVO’s new Job Manager subsystem. The Job Manager allows users to work on other projects within EVO while SAfE is processing. SAfE is a fully automated process with no need for users to set project-specific “tuning” parameters or to move in and out of the EVO processing environment – press a button and it just works.

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