The Dynamic Displacement Monitoring Method Using Unmanned Aerial Vehicles Based on Digital Close-Range Photogrammetry

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left"></td><td class="align_center">Digital cameras</td><td class="align_center">UAVs</td></tr><tr><td class="align_left" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="3">Error sources</td><td class="align_center">Lens distortion</td><td class="align_center">Lens distortion measuring error hover error<sup>1</sup> Windage<sup>2</sup></td></tr><tr><td class="align_center">Measuring error</td><td class="align_center"> </td></tr><tr><td class="align_center">Shutter jitter in manual mode</td><td class="align_center"> </td></tr><tr><td class="align_left" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="2">Flexibility</td><td class="align_center" rowspan="2">Install on stable ground</td><td class="align_center">High flexibility</td></tr><tr><td class="align_center">Avoid crowds</td></tr><tr><td class="align_left" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="2">Expansibility</td><td class="align_center" rowspan="2">Change lenses non-replaceable sensor hot shoe: GPS (global positioning system), flashlight</td><td class="align_center">Change lenses</td></tr><tr><td class="align_center">Sensors<sup>3</sup> [<a href="/journals/mpe/2022/1949213/#B11" target="_blank">11</a>]: RGB image/Video capturing device, LiDAR (light detection and ranging), NIR (near infrared), GPS, INS (inertial navigation system), geomagnetic sensors.</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Performance comparison of digital cameras and UAVs.</div>

Mathematical Problems in Engineering

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Table 3: The Dynamic Displacement Monitoring Method Using Unmanned Aerial Vehicles Based on Digital Close-Range Photogrammetry 