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Structure from Motion with variable focal length: Interconnected fuzzy observer
2021 60th IEEE Conference on Decision and Control (CDC)
In this paper, a 3D point feature depth and camera focal length estimation is proposed, using a partially calibrated low cost monocular camera. The camera intrinsic parameters are known, except for the focal length, which may vary across different views. The camera perspective projection model is augmented using dynamic extension approach, then decomposed into two interconnected subsystems. The subsystems are described as quasi-Linear Parameter Varying (qLPV) systems with unmeasured premisedoi:10.1109/cdc45484.2021.9683139 fatcat:jcxebhda6rhfxpcyp2hej7irg4