Camera Calibration with Aerial Datasets
With aerial datasets, Individual Pose Correction (Orientation) is typically the most important feature to calibrate. All LiDAR systems are calibrated prior to leaving our production facility, and unless the camera has been physically removed from the system, it's likely that the factory calibration for mounting rotations and receptor intrinsics is still valid.
However, the orientation of each image is determined by the trajectory, and the trajectory always has a degree of error. Individual Pose Correction (Orientation) uses features detected in imagery to adjust the orientation of each image, resulting in improved colorization and more accurate camera poses (which can then be exported and used in third party photogrammetry software).
If colorization errors are apparent after photo pose correction, it may be advisable to calibrate the Sensor Orientation, as factory camera calibrations can be degraded by mishandling, shipping and normal use over time.
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