Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm
To improve the efficiency and effectiveness of mosaicking unmanned aerial vehicle (UAV) images, we propose in this paper a rapid mosaicking method based on scale-invariant feature transform (SIFT) for mosaicking UAV images used for crop growth monitoring. The proposed method dynamically sets the app...
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Format: | Article |
Language: | English |
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MDPI AG
2019-05-01
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Series: | Remote Sensing |
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Online Access: | https://www.mdpi.com/2072-4292/11/10/1226 |
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doaj-bebfa82bcd814cf0a42256433f57228f |
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record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jianqing Zhao Xiaohu Zhang Chenxi Gao Xiaolei Qiu Yongchao Tian Yan Zhu Weixing Cao |
spellingShingle |
Jianqing Zhao Xiaohu Zhang Chenxi Gao Xiaolei Qiu Yongchao Tian Yan Zhu Weixing Cao Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm Remote Sensing Unmanned aerial vehicle crop growth monitoring image mosaicking feature matching SIFT |
author_facet |
Jianqing Zhao Xiaohu Zhang Chenxi Gao Xiaolei Qiu Yongchao Tian Yan Zhu Weixing Cao |
author_sort |
Jianqing Zhao |
title |
Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm |
title_short |
Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm |
title_full |
Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm |
title_fullStr |
Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm |
title_full_unstemmed |
Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT Algorithm |
title_sort |
rapid mosaicking of unmanned aerial vehicle (uav) images for crop growth monitoring using the sift algorithm |
publisher |
MDPI AG |
series |
Remote Sensing |
issn |
2072-4292 |
publishDate |
2019-05-01 |
description |
To improve the efficiency and effectiveness of mosaicking unmanned aerial vehicle (UAV) images, we propose in this paper a rapid mosaicking method based on scale-invariant feature transform (SIFT) for mosaicking UAV images used for crop growth monitoring. The proposed method dynamically sets the appropriate contrast threshold in the difference of Gaussian (DOG) scale-space according to the contrast characteristics of UAV images used for crop growth monitoring. Therefore, this method adjusts and optimizes the number of matched feature point pairs in UAV images and increases the mosaicking efficiency. Meanwhile, based on the relative location relationship of UAV images used for crop growth monitoring, the random sample consensus (RANSAC) algorithm is integrated to eliminate the influence of mismatched point pairs in UAV images on mosaicking and to keep the accuracy and quality of mosaicking. Mosaicking experiments were conducted by setting three types of UAV images in crop growth monitoring: visible, near-infrared, and thermal infrared. The results indicate that compared to the standard SIFT algorithm and frequently used commercial mosaicking software, the method proposed here significantly improves the applicability, efficiency, and accuracy of mosaicking UAV images in crop growth monitoring. In comparison with image mosaicking based on the standard SIFT algorithm, the time efficiency of the proposed method is higher by 30%, and its structural similarity index of mosaicking accuracy is about 0.9. Meanwhile, the approach successfully mosaics low-resolution UAV images used for crop growth monitoring and improves the applicability of the SIFT algorithm, providing a technical reference for UAV application used for crop growth and phenotypic monitoring. |
topic |
Unmanned aerial vehicle crop growth monitoring image mosaicking feature matching SIFT |
url |
https://www.mdpi.com/2072-4292/11/10/1226 |
work_keys_str_mv |
AT jianqingzhao rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm AT xiaohuzhang rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm AT chenxigao rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm AT xiaoleiqiu rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm AT yongchaotian rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm AT yanzhu rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm AT weixingcao rapidmosaickingofunmannedaerialvehicleuavimagesforcropgrowthmonitoringusingthesiftalgorithm |
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1724728809416032256 |
spelling |
doaj-bebfa82bcd814cf0a42256433f57228f2020-11-25T02:52:36ZengMDPI AGRemote Sensing2072-42922019-05-011110122610.3390/rs11101226rs11101226Rapid Mosaicking of Unmanned Aerial Vehicle (UAV) Images for Crop Growth Monitoring Using the SIFT AlgorithmJianqing Zhao0Xiaohu Zhang1Chenxi Gao2Xiaolei Qiu3Yongchao Tian4Yan Zhu5Weixing Cao6National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaNational Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaNational Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaNational Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaNational Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaNational Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaNational Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs, PRC, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University,1 Weigang Road Nanjing, Jiangsu 210095, ChinaTo improve the efficiency and effectiveness of mosaicking unmanned aerial vehicle (UAV) images, we propose in this paper a rapid mosaicking method based on scale-invariant feature transform (SIFT) for mosaicking UAV images used for crop growth monitoring. The proposed method dynamically sets the appropriate contrast threshold in the difference of Gaussian (DOG) scale-space according to the contrast characteristics of UAV images used for crop growth monitoring. Therefore, this method adjusts and optimizes the number of matched feature point pairs in UAV images and increases the mosaicking efficiency. Meanwhile, based on the relative location relationship of UAV images used for crop growth monitoring, the random sample consensus (RANSAC) algorithm is integrated to eliminate the influence of mismatched point pairs in UAV images on mosaicking and to keep the accuracy and quality of mosaicking. Mosaicking experiments were conducted by setting three types of UAV images in crop growth monitoring: visible, near-infrared, and thermal infrared. The results indicate that compared to the standard SIFT algorithm and frequently used commercial mosaicking software, the method proposed here significantly improves the applicability, efficiency, and accuracy of mosaicking UAV images in crop growth monitoring. In comparison with image mosaicking based on the standard SIFT algorithm, the time efficiency of the proposed method is higher by 30%, and its structural similarity index of mosaicking accuracy is about 0.9. Meanwhile, the approach successfully mosaics low-resolution UAV images used for crop growth monitoring and improves the applicability of the SIFT algorithm, providing a technical reference for UAV application used for crop growth and phenotypic monitoring.https://www.mdpi.com/2072-4292/11/10/1226Unmanned aerial vehiclecrop growth monitoringimage mosaickingfeature matchingSIFT |