Real-time Quadrifocal Visual Odometry

A.I. Comport, E. Malis, P. Rives
2010 The international journal of robotics research  
This paper describes a new image-based approach to tracking the 6 degrees of freedom trajectory of a stereo camera pair using a corresponding reference image pair whilst simultaneously determining pixel matching between consecutive images in a sequence. A dense minimisation approach is employed which directly uses all grey-scale information available within the stereo pair (or stereo region) leading to very robust and precise results. Metric 3d structure constraints are imposed by consistently
more » ... arping corresponding stereo images to generate novel viewpoints at each stereo acquisition. An iterative non-linear trajectory estimation approach is formulated based on a quadrifocal relationship between the image intensities within adjacent views of the stereo pair. A robust Mestimation technique is used to reject outliers corresponding to moving objects within the scene or other outliers such as occlusions and illumination changes. The technique is applied to recovering the trajectory of a moving vehicle in long and difficult sequences of images. * The first author is with the CNRS and carried this work between LASMEA, Clermont-Ferrand and INRIA Sophia-Antipolis. † The second two authors are with INRIA,
doi:10.1177/0278364909356601 fatcat:s5uhb7524ndnflr7rxawz7vov4