Jing Tang
Forskare
Combining hyperspectral UAV and multispectral Formosat-2 imagery for precision agriculture applications
Författare
Summary, in English
Remote sensing is a key tool for precision agriculture applications as it is capable of capturing spatial and temporal variations in crop status. However, satellites often have an inadequate spatial resolution for precision agriculture applications. High-resolution Unmanned Aerial Vehicles (UAV) imagery can be obtained at flexible dates, but operational costs may limit the collection frequency. The current study utilizes data fusion to create a dataset which benefits from the temporal resolution of Formosat-2 imagery and the spatial resolution of UAV imagery with the purpose of monitoring crop growth in a potato field. The correlation of the Weighted Difference Vegetation Index (WDVI) from fused imagery to measured crop indicators at field level and added value of the enhanced spatial and temporal resolution are discussed. The results of the STARFM method were restrained by the requirement of same-day base imagery. However, the unmixing-based method provided a high correlation to the field data and accurately captured the WDVI temporal variation at field level (r=0.969).
Avdelning/ar
- Institutionen för naturgeografi och ekosystemvetenskap
- MERGE: ModElling the Regional and Global Earth system
Publiceringsår
2017-10-19
Språk
Engelska
Publikation/Tidskrift/Serie
2014 6th Workshop on Hyperspectral Image and Signal Processing : Evolution in Remote Sensing, WHISPERS 2014
Volym
2014-June
Dokumenttyp
Konferensbidrag
Förlag
IEEE Computer Society
Ämne
- Other Agricultural Sciences not elsewhere specified
- Other Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- precision agriculture
- STARFM
- UAV
- unmixing-based data fusion
- WDVI
Conference name
6th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2014
Conference date
2014-06-24 - 2014-06-27
Conference place
Lausanne, Switzerland
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 9781467390125