Factorization-based calibration method for MEMS inertial measurement unit

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Factorization-based calibration method for MEMS inertial measurement unit
— We present an easy-to-use calibration method for MEMS inertial sensor units based on the Factorization method which was originally invented for shape-and-motion recovery in computer vision. Our method requires no explicit knowledge of individual motions applied during calibration procedure. Instead a set of motion constraints in the form of an innerproduct is used to factorize sensor measurements into a calibration matrix (that represents intrinsic sensor parameters) and a motion matrix (that represents acceleration or angular velocity). These motion constraints can be collected quickly from a lowcost calibration apparatus. Our method is not limited to just triad configurations but also applicable to any coordination of more than three sensor elements. A redundant configuration has the benefit that all the calibration parameters including biases are estimated at once. Simulation and experiments are provided to verify the proposed method.
Myung Hwangbo, Takeo Kanade
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Where ICRA
Authors Myung Hwangbo, Takeo Kanade
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