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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:9.0pt'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center;page-break-after:avoid'><b><span style='font-size:16.0pt;font-family:"Tahoma","sans-serif"'>MS Thesis Defense<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center;page-break-after:avoid'><b><span style='font-size:16.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center;page-break-after:avoid'><b><span style='font-size:16.0pt;font-family:"Tahoma","sans-serif"'>THREE-DIMENSIONAL ACCURACY ANALYSIS OF A MAPPING-GRADE MOBILE LASER SCANNING SYSTEM<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'>Darren Hauser<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'>Date: Monday, July 22<sup>nd, </sup>2013<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'>Location:</span></b> <span style='font-size:12.0pt'>Civil & Environmental Engineering Conference Room<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'>Time: 11:00 AM<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt'>Committee Chair: <o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt'>Dr. Craig Glennie<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt'>This thesis investigates the accuracy of a low-cost, mapping-grade mobile laser scanning system. The instruments, development, and inherent and expected errors of the system are discussed, along with the data collection techniques. The processing procedures are detailed, including the reported reliability of the post-processed results estimated by the processing algorithms.<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt'>The resulting geo-referenced pointclouds, collected in backpack mode, are compared to high-accuracy terrestrial laser scanning data. Several analysis methods are used, including planar investigations and feature extraction approaches. These techniques provide multiple perspectives on the potential accuracy of the mapping-grade system. Additionally, a high-end, survey-grade mobile laser scanning system is also utilized as a comparison standard, since the performance ability of these types of systems are well established. The final analysis showed a 6-8 cm horizontal accuracy and 4-6 cm vertical accuracy at 1</span><span style='font-size:12.0pt'>ó for the mapping-grade system. It can be confidently stated that the system is able to reliably collect pointcloud data with a three-dimensional accuracy of better than ± 10 cm. </span><span style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>