UAV-based Imaging for Multi-Temporal, very high Resolution Crop Surface Models to monitor Crop Growth Variability

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Title:Main Title: UAV-based Imaging for Multi-Temporal, very high Resolution Crop Surface Models to monitor Crop Growth Variability
Description:Abstract: This paper describes the generation of multi-temporal crop surface models (CSMs) with very high resolution of < 0.05 m. Data collection was carried out with a low-cost and low-weight UAV-system with a weight of less than 5 kg and the possibility of mounting different sensors. Key focus is the detection of crop growth variability and its dependency on cultivar, crop treatment and stress. The study area is a barley experiment field in Bonn in the west of Germany. Four replications of four cultivars of barley were investigated of which half of them where treated with a fungicide. Five UAV-campaigns were carried out during the growing season between early May and late July 2012. Ground control points (GCPs) measured with a Hi-Per Pro Topcon DGPS allowed for appropriate ground truth (< 0.02 m). Ground based infield control surveys on three dates served as validation of the method. Additionally, various destructive and non-destructive ground data were collected. The stereo images captured were processed into CSMs by using the structure-from-motion (SfM) software Agisoft PhotoScan. Generated plant heights ranged between 0.16 m and 0.983 m. R (n = 32) for the correlation between plant heights in the CSM and infield control surveys is 0.69. Lower plant heights were detected in those plots of the field where no fungicide was applied. Height differences between cultivars were observed and increased during growing season. The accuracy assessment of DEMs generated with the proposed UAV-based imaging showed a correlation coefficient of 0.99 (n = 10) between the DGPS GCPs and the DEMs with a mean difference of 0.01 m in z-direction.
Identifier:10.1127/1432-8364/2013/0200 (DOI)
Citation Advice:Bendig, Juliane; Bolten, Andreas; Bareth, Georg (2013): UAV-based Imaging for Multi-Temporal, very high Resolution Crop Surface Models to monitor Crop Growth Variability. PFG 2013 (6), pp.551-562. http://dx.doi.org/10.1127/1432-8364/2013/0200
Responsible Party
Creators:Juliane Bendig (Author), Andreas Bolten (Author), Georg Bareth (Author)
Publisher:E. Schweizerbart'sche Verlagsbuchhandlung
Publication Year:2014
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Filename:Bendig_et_al_UAV_CSM_PFG_2013.pdf
Data Type:Text - Article
File Size:16.1 MB
Date:Created: 14.05.2014
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Free
Download Information:PFG Open Access Publication: http://www.ingentaconnect.com/content/schweiz/pfg/2013/00002013/00000006/art00001
General Access and Use Conditions:no conditions apply
Access Limitations:no limitations
Licence:[TR32DB] Data policy agreement
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Publication Status:Published
Review Status:Not peer reviewed
Publication Type:Article
Article Type:Journal
Source:PFG (Photogrammetrie - Fernerkundung - Geoinformation)
Source Website:http://www.ingentaconnect.com/content/schweiz/pfg/2013/00002013/00000006/art00001
Issue:6
Volume:2013
Number of Pages:12 (551 - 562)
Metadata Details
Metadata Creator:Georg Bareth
Metadata Created:14.05.2014
Metadata Last Updated:14.05.2014
Subproject:Z1
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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