A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm

This study proposes a new simple procedure for extracting coastline from Synthetic Aperture Radar (SAR) images by utilizing a low-pass filter and edge detection algorithm. The low-pass filter is used to improve the histogram of the pixel value of the SAR image. It provides better distribution of pix...

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Autores principales:	Ni Nyoman Pujianiki, I Nyoman Sudi Parwata, Takahiro Osawa
Formato:	article
Lenguaje:	ID
Publicado:	Universitas Udayana 2021
Materias:	Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/e5f807504b0a4fe7949c3a16c0542679
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spelling	oai:doaj.org-article:e5f807504b0a4fe7949c3a16c05426792021-12-01T04:18:06ZA New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm2088-15412541-583210.24843/LKJITI.2021.v12.i03.p05https://doaj.org/article/e5f807504b0a4fe7949c3a16c05426792021-11-01T00:00:00Zhttps://ojs.unud.ac.id/index.php/lontar/article/view/78801https://doaj.org/toc/2088-1541https://doaj.org/toc/2541-5832This study proposes a new simple procedure for extracting coastline from Synthetic Aperture Radar (SAR) images by utilizing a low-pass filter and edge detection algorithm. The low-pass filter is used to improve the histogram of the pixel value of the SAR image. It provides better distribution of pixel value and makes it easy to separate between sea and land surfaces. This study provides the processing steps using open-source software, i.e., SNAP SAR processor and QGIS application. This procedure has been tested using dual polarization Sentinel-1 (10x10 meters resolution) and single polarization ALOS-2 (3x3 meters resolution) dataset. The results show that using Sentinel-1 with dual polarization (VH) provides a better result than single polarization (VV). In the ALOS-2 case, only single polarization (HH) is available. However, even using only HH polarization, ALOS-2 provides a good result. In terms of resolution, ALOS-2 provides a better coastline than Sentinel-1 data due to ALOS-2 has better resolution. This procedure is expected to be helpful to detect coastline changes and for coastal area management.Ni Nyoman PujianikiI Nyoman Sudi ParwataTakahiro OsawaUniversitas UdayanaarticleElectronic computers. Computer scienceQA75.5-76.95IDLontar Komputer, Vol 12, Iss 3, Pp 175-185 (2021)
institution	DOAJ
collection	DOAJ
language	ID
topic	Electronic computers. Computer science QA75.5-76.95
spellingShingle	Electronic computers. Computer science QA75.5-76.95 Ni Nyoman Pujianiki I Nyoman Sudi Parwata Takahiro Osawa A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm
description	This study proposes a new simple procedure for extracting coastline from Synthetic Aperture Radar (SAR) images by utilizing a low-pass filter and edge detection algorithm. The low-pass filter is used to improve the histogram of the pixel value of the SAR image. It provides better distribution of pixel value and makes it easy to separate between sea and land surfaces. This study provides the processing steps using open-source software, i.e., SNAP SAR processor and QGIS application. This procedure has been tested using dual polarization Sentinel-1 (10x10 meters resolution) and single polarization ALOS-2 (3x3 meters resolution) dataset. The results show that using Sentinel-1 with dual polarization (VH) provides a better result than single polarization (VV). In the ALOS-2 case, only single polarization (HH) is available. However, even using only HH polarization, ALOS-2 provides a good result. In terms of resolution, ALOS-2 provides a better coastline than Sentinel-1 data due to ALOS-2 has better resolution. This procedure is expected to be helpful to detect coastline changes and for coastal area management.
format	article
author	Ni Nyoman Pujianiki I Nyoman Sudi Parwata Takahiro Osawa
author_facet	Ni Nyoman Pujianiki I Nyoman Sudi Parwata Takahiro Osawa
author_sort	Ni Nyoman Pujianiki
title	A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm
title_short	A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm
title_full	A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm
title_fullStr	A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm
title_full_unstemmed	A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm
title_sort	new simple procedure for extracting coastline from sar image based on low pass filter and edge detection algorithm
publisher	Universitas Udayana
publishDate	2021
url	https://doaj.org/article/e5f807504b0a4fe7949c3a16c0542679
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A New Simple Procedure for Extracting Coastline from SAR Image Based on Low Pass Filter and Edge Detection Algorithm

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