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Wavelet based Marker-Controlled Watershed Segmentation Technique for High Resolution Satellite Images

Published on None 2011 by Imdad Rizvi, B K Mohan
International Conference and Workshop on Emerging Trends in Technology
Foundation of Computer Science USA
ICWET - Number 14
None 2011
Authors: Imdad Rizvi, B K Mohan
fd0bf86f-7b22-483f-8fb6-6cf663599276

Imdad Rizvi, B K Mohan . Wavelet based Marker-Controlled Watershed Segmentation Technique for High Resolution Satellite Images. International Conference and Workshop on Emerging Trends in Technology. ICWET, 14 (None 2011), 61-68.

@article{
author = { Imdad Rizvi, B K Mohan },
title = { Wavelet based Marker-Controlled Watershed Segmentation Technique for High Resolution Satellite Images },
journal = { International Conference and Workshop on Emerging Trends in Technology },
issue_date = { None 2011 },
volume = { ICWET },
number = { 14 },
month = { None },
year = { 2011 },
issn = 0975-8887,
pages = { 61-68 },
numpages = 8,
url = { /proceedings/icwet/number14/2173-is477/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference and Workshop on Emerging Trends in Technology
%A Imdad Rizvi
%A B K Mohan
%T Wavelet based Marker-Controlled Watershed Segmentation Technique for High Resolution Satellite Images
%J International Conference and Workshop on Emerging Trends in Technology
%@ 0975-8887
%V ICWET
%N 14
%P 61-68
%D 2011
%I International Journal of Computer Applications
Abstract

Image analysis requires a segmentation step to distinguish the significant components of the image, i.e., the foreground from the background. As a step prior to image classification the quality of the segmentation is of significant importance. High-resolution satellite image classification using standard per-pixel approaches is difficult because of the high volume of data, as well as high spatial variability within the objects. One approach to deal with this problem is to reduce the image complexity by dividing it into homogenous segments prior to classification. This has the added advantage that segments can not only be classified on basis of spectral information but on a host of other features such as neighborhood, size, texture and so forth. Segmentation of the images is carried out using the region based algorithms such as marker-based watershed transform by taking the advantage of multi-resolution and multi-scale gradient algorithms. This paper presents an efficient method for image segmentation based on a multi-resolution application of a wavelet transform and marker-based watershed segmentation algorithm. It also addresses the issue of excessive fragmentation into regions of watershed segmentation, which is avoided by the multi-resolution analysis fact. The most significant components perceived in the highest resolution image will remain identifiable also at lower resolution. Hence the seeds for watershed segmentation on the lower resolution levels are identified and then used them to identify the significant seeds in the highest resolution image. Experimental result of proposed technique gives promising result on QuickBird images. It can be applied to the segmentation of noisy or degraded images as well as reduce over-segmentation.

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Index Terms

Computer Science
Information Sciences

Keywords

Multi-resolution Analysis Image Segmentation Watershed Transform High resolution satellite image