Title :
Estimation of camera calibration uncertainty using LIDAR data
Author :
Ortega, Antonio ; Galego, Ricardo ; Ferreira, Ricardo ; Bernardino, Alexandre ; Gaspar, Jose ; Andrade-Cetto, Juan
Author_Institution :
Inst. de Robot. i Inf. Ind., UPC, Barcelona, Spain
Abstract :
This paper presents an analysis of uncertainty in the calibration of a network of cameras. A global 3D scene model, acquired with a LIDAR scanner, allows calibrating cameras with non overlapping fields of view by means of the DLT-Lines algorithm. Once the projection matrix is computed for each camera, error sources are propagated to compute estimates of each camera position uncertainty. We validate the consistency of the uncertainty analysis with Monte-Carlo simulations, and apply the technique in a real camera network. This allows to evaluate the accuracy of DLT-Lines in real settings.
Keywords :
Monte Carlo methods; calibration; cameras; matrix algebra; natural scenes; optical radar; pose estimation; robot vision; DLT-Lines algorithm; LIDAR data; LIDAR scanner; Monte Carlo simulation; camera calibration uncertainty estimation; camera network calibration; camera position uncertainty; direct linear transformation algorithm; error source propagation; global 3D scene model; projection matrix; real camera network; uncertainty analysis; Calibration; Cameras; Monte Carlo methods; Noise; Robot vision systems; Three-dimensional displays; Uncertainty;
Conference_Titel :
Mobile Robots (ECMR), 2013 European Conference on
Conference_Location :
Barcelona
DOI :
10.1109/ECMR.2013.6698868