Iterative Corner Extraction and Matching for Mosaic Construction

A rapid and automatic iterative corner extraction

and matching for 2D mosaic construction is presented.

This new system progressively estimates the geometric

transformation parameters between two misaligned

images. It combines corner extraction, matching, and

transformation parameters estimation into an iterative

scheme. By aligning the images in successive iterations,

accuracy improves significantly. The accurately

aligned images are used to re-extract new features,

which are subsequently matched to select

correspondences used to estimate a transformation with

n-degrees of freedom. The false correspondences are

suppressed progressively to achieve an accurate

transformation estimate. The system is used to construct

a mosaic from two misaligned images. The

performance of the system is demonstrated

experimentally using various images of differing

complexity.