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Córdova-Esparza, Diana-Margarita; Terven, Juan R.; Jiménez-Hernández, Hugo; Vázquez-Cervantes, Alberto; Herrera-Navarro, Ana-Marcela; Ramírez-Pedraza, Alfonso
Automatika, 01/2016, Volume: 57, Issue: 3Journal Article
In this paper, we propose a method to easily calibrate multiple Kinect V2 sensors. It requires the cameras to simultaneously observe a 1D object shown at different orientations (three at least) or a 2D object for at least one acquisition. This is possible due to the built-in coordinate mapping capabilities of the Kinect. Our method follows five steps: image acquisition, pre-calibration, point cloud matching, intrinsic parameters initialization, and final calibration. We modeled radial and distortion parameters of all the cameras, obtaining a root mean square re-projection error of 0.2 pixels on the depth cameras and 0.4 pixels on the color cameras. To validate the calibration results we performed point cloud fusion with color and 3D reconstruction using the depth and color information from four Kinect sensors.
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