Self-Calibration and Euclidean Reconstruction Using Motions of a Stereo Rig

Stereo Calibration from Rigid Motions

This paper describes a method to upgrade projective reconstruction to a ne and to metric reconstructions using rigid general or planar motions of a stereo rig. We make clear the algebraic relationships between projective reconstruction, the plane at in nity (a ne reconstruction), camera calibration, and metric reconstruction when a 3-D scene is observed with a moving stereo rig. Based on an in-...

From projective to Euclidean reconstruction

To make a Euclidean reconstruction of the world seen through a stereo rig we can either use a cal ibration grid and the results will rely on the preci sion of the grid and the extracted points of interest or use self calibration Past work on self calibration is focussed on the use of only one camera and gives sometimes very unstable results In this paper we use a stereo rig which is supposed to...

Calibrating a Binocular Stereothrough Projective Reconstruc - Tion Using Both a Calibration Ob - Ject and the Environment

We present a novel technique for calibrating a binocular stereo rig by using the information from both scenes and classical calibration objects. The calibration provided by the calssical methods is only valid for the space near the position of the calibration object. Our technique takes the advantage of the rigidity of the geometry between two cameras. The idea is to rst estimate precisely the ...

Self-calibration of a stereo rig from unknown camera motions and point correspondences

A self-calibration method for a multi stereo-rig system based on robust 3D motion estimation

This paper discusses self-calibration method for a multi stereo-rig passive face recognition system with overlapping views of individual cameras. Two cameras fixed inside a rig can be easily calibrated in a factory environment so each rig will be considered individually calibrated. It is incredibly important to estimate relative positions and orientations of the stereo rigs with respect to each...