In practice, rigid objects often move on a plane. The object then rotates around a fixed axis and translates in a plane orthogonal to this axis. For a concrete example, think of a car moving on a street. Given multiple static affine cameras which observe such a rigidly moving object and track feature points located on this object, what can be said about the resulting feature point trajectories ...

4 Method Stages 6 4.1 Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1.1 ITMDepthTracker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1.2 ITMColorTracker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1.3 ITMExtendedTracker . . . . . . . . . . . . . . . . . . . . . . . . . . ....

This paper presents a simple method for the 3D reconstruction of a scene with a single translating camera and without calibration. The self-calibration method is based on lines and requires three images of the scene. The reconstruction also includes error bounds on the reconstructed lines.

.............................................................................................................................. ii Acknowledgements ............................................................................................................ iv Dedication .......................................................................................................................... ix T...

Elena Logdacheva St.-Petersburg State University 49, 10 Line V.O. St. Petersburg 199178 Russia [email protected] Yuri Vinogradov Institute for the History of Material Culture of RAS 18, Palace emb. St. Petersburg 191186, Russia [email protected] Sergei Shvemberger St.-Petersburg State University 49, 10 Line V.O. St. Petersburg 199178 Russia [email protected] Nikolay Borisov St.-Peter...

This paper presents a 3D reconstruction method without calibration. The reconstruction is affine and based on line correspondences between three images delivered by a camera observing a scene under translation.

We seek to extract the three-dimensional motion of articulated objects by passive sensing. We first developed a multi-view system that segments objects from the background before their subsequent analysis by a motion model. To reduce the effects of noise, we also performed 3D reconstruction prior to motion analysis to improve the extraction of the (static) background. The 3D extraction and moti...

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