Structural Engineers Association of New York

EERI-NYNE Special Lecture Structure-from-Motion & LIDAR: Computational Imaging Tools for Engineers

16 May 2019 5:30 PM | Anonymous

EERI-NYNE Special Lecture

Structure-from-Motion & LIDAR: Computational Imaging Tools for Engineers


May 16, 2019

5:30 PM - 7:00 PM

WSP, 1 Penn Plaza, New York, NY 10119

The Civil Engineering community is advancing the use of LIDAR and structure-from-motion (SFM) 3D topographic models for understanding the geometry of complex structural and earth deformations and has greatly benefited from these tools. For civil engineering deformation research, LIDAR & SFM are particularly useful for characterizing the dimensions of failures and for monitoring subtle deformation through time. This presentation will present the two technologies and an evaluation of the accuracy, bias, and dispersion of 3D data under controlled experimental conditions. Examples are given from recent field studies using LIDAR and SFM visualization and analysis from some recent extreme-events investigated by the National Science Foundation-funded GEER association. Ultra-high resolution imagery of complex surfaces allows the exploration and visualization of damage in orientations and scales not previously possible. Detailed understanding of the surface morphology allows for better numerical modeling of potential failure modes, deformation patterns, and morphologies. Finally, LIDAR and SFM technology provides for the permanent archiving of 3-D terrain.

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