Image registration by means of 3D octree correlation

Abstract

With no calibrated camera setup at hand, careful inspection of the imagery is needed to guarantee a feasible 3D reconstruction result based upon the images. We propose a new approach for image registration based on reconstructed 3D octrees by voxel carving. Correlation of these models gives rise to a translation offset for a maximum intersection between different models from different images. Projecting the resulting three-dimensional translation offsets back into the image plane results in two two-dimensional image offsets that are used for the image registration.