Title :
Dynamic pose-estimation from the epipolar geometry for visual servoing of mobile robots
Author :
Becerra, H.M. ; Sagues, C.
Author_Institution :
Inst. de Investig. en Inge nieria de Aragon, Univ. de Zaragoza, Zaragoza, Spain
Abstract :
In this paper, we propose to exploit the epipolar geometry for dynamic pose-estimation of mobile robots. This is performed using a filtering approach with measurements given by the epipoles. The contribution of the paper is a novel observability analysis using nonlinear and linear tools that leads to achieve an efficient position-based visual servoing (PBVS) approach. Additionally, the visibility constraint problem is solved for this type of approach by using any visual sensor obeying a central projection model. This scheme does not need a target model neither scene reconstruction nor the 3D structure. The effectiveness of the proposed estimation scheme is evaluated via simulations in servoing tasks including obstacles and using omnidirectional vision.
Keywords :
collision avoidance; linear systems; mobile robots; nonlinear control systems; observability; pose estimation; robot kinematics; robot vision; visual servoing; central projection model; dynamic pose estimation; epipolar geometry; filtering approach; linear tool; mobile robot; nonlinear tool; observability analysis; omnidirectional vision; position-based visual servoing; visibility constraint problem; visual sensor; Cameras; Estimation; Mobile robots; Observability; Robot kinematics; Three dimensional displays;
Conference_Titel :
Robotics and Automation (ICRA), 2011 IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-386-5
DOI :
10.1109/ICRA.2011.5979737