3D geometry reconstruction from a stereoscopic video sequence

Authors:
A. Salgado;J. Sánchez
Affiliations:
Departamento de Informática y Sistemas, Universidad de Las Palmas de G.C., Las Palmas de G.C., Spain;Departamento de Informática y Sistemas, Universidad de Las Palmas de G.C., Las Palmas de G.C., Spain
Venue:
ICIAR'05 Proceedings of the Second international conference on Image Analysis and Recognition
Year:
2005

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Abstract

The aim of this work is to propose a method for recovering the 3D geometry of a video sequence taken from a pair of stereo cameras. The cameras are rigidly situated in a fixed position and there are some objects which are moving in front of them. Our method estimates the displacements of objects and the 3D structure of the scene. We establish a temporal constraint that relates the computation of the optical flow and the estimation of disparity maps. We use an energy minimisation approach that yields a system of partial differential equations (PDE) which is solved by means of a gradient descent technique.