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- W4387362261 abstract "The monitoring of structural displacements is crucial because displacements can reveal critical information about the health of civil structures. Despite this, accurate measurements of structural displacements remain a difficult task. The fusion of a vision camera and an accelerometer has previously been explored to estimate structural displacements, but only in-plane displacements can be estimated. This chapter describes a three-dimensional structural displacement estimation method that fuses measurements from a consumer-grade camera and a triaxial accelerometer mounted on a target structure. An accelerometer-aided computer vision algorithm and an adaptive multirate Kalman filter are integrated to efficiently estimate high-sampling three-dimensional displacements from low-sampling vision measurements and high-sampling acceleration measurements. All parameters associated with the computer vision algorithm are automatically calibrated without any prior knowledge or ad-hoc thresholding. Experimental validation of the proposed method is performed on a four-story building model under varying excitations. Displacements were accurately estimated with a root mean square error of less than 2 mm." @default.
- W4387362261 created "2023-10-06" @default.
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- W4387362261 date "2023-10-06" @default.
- W4387362261 modified "2023-10-06" @default.
- W4387362261 title "Three-Dimensional Structural Displacement Estimation Using a Low-Cost Sensing System Combining a Consumer-Grade Camera and an Accelerometer" @default.
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- W4387362261 doi "https://doi.org/10.1007/978-3-031-36663-5_20" @default.
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