Staff View: Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique

Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique

Visibility of a new crescent moon is crucial for Muslims when declaring the beginning of the Islamic calendar. For many years, astronomers had observed the visibility of the new crescent moon using various techniques, such as the naked eye and optical instruments. In line with technological developm...

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Main Authors:	Zulkeflee, A. N., Yussof, W. N. J. H. W., Umar, R., Ahmad, Nazhatulshima, Mohamad, F. S., Man, M., Awalludin, E. A.
Format:	Article
Published:	Elsevier 2022
Subjects:	QA75 Electronic computers. Computer science QB Astronomy QC Physics
Online Access:	http://eprints.um.edu.my/41081/
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spelling	my.um.eprints.410812023-08-17T08:28:28Z http://eprints.um.edu.my/41081/ Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique Zulkeflee, A. N. Yussof, W. N. J. H. W. Umar, R. Ahmad, Nazhatulshima Mohamad, F. S. Man, M. Awalludin, E. A. QA75 Electronic computers. Computer science QB Astronomy QC Physics Visibility of a new crescent moon is crucial for Muslims when declaring the beginning of the Islamic calendar. For many years, astronomers had observed the visibility of the new crescent moon using various techniques, such as the naked eye and optical instruments. In line with technological developments, astronomers have changed their observation technique to using astronomical imaging with the aid of a digital camera attached to a telescope. This helps to capture and save the images of the new crescent moon. However, the new crescent moon image has presented difficulties to astronomers as it visibility in the image is difficult to detect due to a low contrast with the sky. Hence, the captured image could not be presented as evidence of its visibility. This study proposes the use of Contrast Limited Adaptive Histogram Equalization (CLAHE) for contrast enhancement. Then, the bilateral filter for image denoising was applied and lastly, the Maximally Stable Extremal Regions (MSER) detector was used to detect the new crescent moon region in the image. The result shows that this proposed method has acceptable practical results. The new crescent moon images can be enhanced successfully using CLAHE and the bilateral filter technique even when the new crescent moon is not visible to the naked eye. The new crescent moon region can be well detected with the MSER detector although MSER does not perform well on the blurry region of new crescent moon corner. This technique can help astronomers detect the new crescent moon's visibility for declaring the beginning month of the Islamic calendar.(c) 2022 Elsevier B.V. All rights reserved. Elsevier 2022-10 Article PeerReviewed Zulkeflee, A. N. and Yussof, W. N. J. H. W. and Umar, R. and Ahmad, Nazhatulshima and Mohamad, F. S. and Man, M. and Awalludin, E. A. (2022) Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique. Astronomy and Computing, 41. ISSN 2213-1337, DOI https://doi.org/10.1016/j.ascom.2022.100651 <https://doi.org/10.1016/j.ascom.2022.100651>. 10.1016/j.ascom.2022.100651
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QA75 Electronic computers. Computer science QB Astronomy QC Physics
spellingShingle	QA75 Electronic computers. Computer science QB Astronomy QC Physics Zulkeflee, A. N. Yussof, W. N. J. H. W. Umar, R. Ahmad, Nazhatulshima Mohamad, F. S. Man, M. Awalludin, E. A. Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique
description	Visibility of a new crescent moon is crucial for Muslims when declaring the beginning of the Islamic calendar. For many years, astronomers had observed the visibility of the new crescent moon using various techniques, such as the naked eye and optical instruments. In line with technological developments, astronomers have changed their observation technique to using astronomical imaging with the aid of a digital camera attached to a telescope. This helps to capture and save the images of the new crescent moon. However, the new crescent moon image has presented difficulties to astronomers as it visibility in the image is difficult to detect due to a low contrast with the sky. Hence, the captured image could not be presented as evidence of its visibility. This study proposes the use of Contrast Limited Adaptive Histogram Equalization (CLAHE) for contrast enhancement. Then, the bilateral filter for image denoising was applied and lastly, the Maximally Stable Extremal Regions (MSER) detector was used to detect the new crescent moon region in the image. The result shows that this proposed method has acceptable practical results. The new crescent moon images can be enhanced successfully using CLAHE and the bilateral filter technique even when the new crescent moon is not visible to the naked eye. The new crescent moon region can be well detected with the MSER detector although MSER does not perform well on the blurry region of new crescent moon corner. This technique can help astronomers detect the new crescent moon's visibility for declaring the beginning month of the Islamic calendar.(c) 2022 Elsevier B.V. All rights reserved.
format	Article
author	Zulkeflee, A. N. Yussof, W. N. J. H. W. Umar, R. Ahmad, Nazhatulshima Mohamad, F. S. Man, M. Awalludin, E. A.
author_facet	Zulkeflee, A. N. Yussof, W. N. J. H. W. Umar, R. Ahmad, Nazhatulshima Mohamad, F. S. Man, M. Awalludin, E. A.
author_sort	Zulkeflee, A. N.
title	Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique
title_short	Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique
title_full	Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique
title_fullStr	Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique
title_full_unstemmed	Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique
title_sort	detection of a new crescent moon using the maximally stable extremal regions (mser) technique
publisher	Elsevier
publishDate	2022
url	http://eprints.um.edu.my/41081/
_version_	1775622747847655424
score	13.211869

Detection of a new crescent moon using the maximally stable extremal regions (MSER) technique

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