Image Fusion Techniques for Spatial Resolution Enhancement of AWiFS Sensor Data

Abstract

Different characteristics of two or more images can be combined to achieve the merits of both in the resultant image. In proposed work image fusion is performed on pair of images, LISS-III and AWiFS of Resourcesat-I satellite (ISRO) LISS-III sensor data have high-spatial resolution, whereas AWiFS sensor data has high temporal resolution and larger swath. Different techniques namely regression, support vector machines (SVM), non-subsampled contourlet transform (NSCT) are used for acquiring images with high temporal, finer spatial and larger swath. The results of the resultant images with high resolutions are found to be satisfactory.