Closed-form solution of visual-inertial structure from motion

Agostino Martinelli (1)

1 E-MOTION - Geometry and Probability for Motion and Action

This paper investigates the visual-inertial structure from motion problem. A simple closed form solution to this problem is introduced. Special attention is devoted to identify the conditions under which the problem has a finite number of solutions. Specifically, it is shown that the problem can have a unique solution, two distinct solutions and infinite solutions depending on the trajectory, on the number of point-features and on their layout and on the number of camera images. The investigation is also performed in the case when the inertial data are biased, showing that, in this latter case, more images and more restrictive conditions on the trajectory are required for the problem resolvability.

Domaines: Vision par ordinateur et reconnaissance de formes [cs.CV]; Robotique [cs.RO]

Agostino Martinelli. Closed-form solution of visual-inertial structure from motion. International Journal of Computer Vision, 2013. ⟨hal-00905881⟩