Share Email Print
cover

Proceedings Paper

Unmanned Aerial Vehicle (UAV) operated spectral camera system for forest and agriculture applications
Author(s): Heikki Saari; Ismo Pellikka; Liisa Pesonen; Sakari Tuominen; Jan Heikkilä; Christer Holmlund; Jussi Mäkynen; Kai Ojala; Tapani Antila
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

VTT Technical Research Centre of Finland has developed a Fabry-Perot Interferometer (FPI) based hyperspectral imager compatible with the light weight UAV platforms. The concept of the hyperspectral imager has been published in the SPIE Proc. 7474 and 7668. In forest and agriculture applications the recording of multispectral images at a few wavelength bands is in most cases adequate. The possibility to calculate a digital elevation model of the forest area and crop fields provides means to estimate the biomass and perform forest inventory. The full UAS multispectral imaging system will consist of a high resolution false color imager and a FPI based hyperspectral imager which can be used at resolutions from VGA (480 x 640 pixels) up to 5 Mpix at wavelength range 500 - 900 nm at user selectable spectral resolutions in the range 10...40 nm @ FWHM. The resolution is determined by the order at which the Fabry- Perot interferometer is used. The overlap between successive images of the false color camera is 70...80% which makes it possible to calculate the digital elevation model of the target area. The field of view of the false color camera is typically 80 degrees and the ground pixel size at 150 m flying altitude is around 5 cm. The field of view of the hyperspectral imager is presently is 26 x 36 degrees and ground pixel size at 150 m flying altitude is around 3.5 cm. The UAS system has been tried in summer 2011 in Southern Finland for the forest and agricultural areas. During the first test campaigns the false color camera and hyperspectral imager were flown over the target areas at separate flights. The design and calibration of the hyperspectral imager will be shortly explained. The test flight campaigns on forest and crop fields and their preliminary results are also presented in this paper.

Paper Details

Date Published: 6 October 2011
PDF: 15 pages
Proc. SPIE 8174, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII, 81740H (6 October 2011); doi: 10.1117/12.897585
Show Author Affiliations
Heikki Saari, VTT Technical Research Ctr. of Finland (Finland)
Ismo Pellikka, Univ. of Jyväskylä (Finland)
Liisa Pesonen, MTT Agrifood Research Finland (Finland)
Sakari Tuominen, Finnish Forest Research Institute (Finland)
Jan Heikkilä, Pieneering Ltd. (Finland)
Christer Holmlund, VTT Technical Research Ctr. of Finland (Finland)
Jussi Mäkynen, VTT Technical Research Ctr. of Finland (Finland)
Kai Ojala, VTT Technical Research Ctr. of Finland (Finland)
Tapani Antila, VTT Technical Research Ctr. of Finland (Finland)


Published in SPIE Proceedings Vol. 8174:
Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII
Christopher M. U. Neale; Antonino Maltese, Editor(s)

© SPIE. Terms of Use
Back to Top