Performance of Point Similarity Measure in Multitemporal Satellite Images

Bejo, Siti Khairunniza and Ibrahim, Haidi and Mohammed Shariff, Abdul Rashid (2008) Performance of Point Similarity Measure in Multitemporal Satellite Images. In: The Eight IASTED International Conference on Visualization, Imaging & Image Processing, VIIP 2008, 1-3 September 2008, Spain.

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Abstract

In this paper, the performance of point similarity measure in multitemporal data of satellite images will be presented. Mutual information will be used as a measure of similarity. Therefore, every pixel will be assigned to its own value of mutual information. These pixels are then grouped into four different groups of similarity. Sequence of local mutual information images will be produced. Image thresholding is then applied to the local mutual information image taken from the longest duration of gap. Overlapping part between the thresholded image and other local mutual information images are then analyzed. Combination of the other local mutual information images at the overlapping part is used to produce another version of thresholded image. This image is produced by referring to the change and unchanged conditions. Both thresholded images are then compared. From the experiment, it has been shown that pixel with high value of local mutual information give more consistent result.

Item Type:Conference or Workshop Item (Paper)
Keyword:Local similarity measure, change detection, image classification and image thresholding
Subject:Satellite
Faculty or Institute:Faculty of Engineering
ID Code:10713
Deposited By: Erni Suraya Abdul Aziz
Deposited On:15 Mar 2011 13:20
Last Modified:15 Mar 2011 13:23

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