Comparative analysis in satellite image Registration

Abstract

This paper proposes a comparative study and analysis in satellite image Registration. Image registration techniques are aimed to improve the geometrical consistency of satellite images. This technique can be employed for the detection of changes in images. We are analyzing Point based, Edge based and Contour based image registration techniques. In the first method control points are selected manually and registration is performed using cross correlation. Edge based image registration emphasized on corner features. Two pairs of optimal matching corners were selected from matched corners as control points and transformation is applied. In contour based approach contour points are extracted from image and based on the contour points image registration is performed. Finally localization error and matching error is calculated and analyzed.