The drone optimized multispectral camera, Parrot Sequoia, just arrived to the lab today! The camera collect images in four defined wavelength bands as well as a normal RGB sensor. More information about the camera.
In contrast to many other users, we plan to use the camera to capture data of forest. As soon as we have some footage to show, we will publish here on rslab.se.
The camera captures images (1.2 Mpx) in the following wavelength bands:
Green 550 nm (40 nm bandwidth)
Red 660 nm (40 nm bandwidth)
Red edge (10 nm bandwidth)
Near infrared (40 nm bandwidth)
In addition to the four narrow wavelength bands, the Sequoia has a RGB camera with 16 Mpx resolution.
The scientists at the Ljungberg Lab at the Swedish University of agricultural Sciences in Umeå went for a two day field excursion to test thermal cameras and new drones. Joining the students at the Fire Management course at the Forest faculty, who were going to make a prescribed burning of a 20 ha clear-cut. We wanted to test our new Solo helicopter drone from 3Drobotics and to capture thermal video and images from our Flir Vue camera. We also wanted to test the thermal camera in our fixed wing Smartplane drone.
We started by capturing RGB images from 200 meters above ground with the Smartplane before the fire was started. From this imagery we created a 7 cm Ground Sampling Distance (GSD) orthorectified image mosaic. Which could be used for describing the pre-fire state of the area.
Under the duration of the controlled burning we flew the thermal camera multiple times, with the purpose of acquiring aerial thermal and visual (RGB) images to describe the burn process and to test the usefulness of having a thermal camera to find hotspots or ground fire hours after the fire front have passed an area.
This will be evaluated later, when all data sets had been processed to orthorectified imagery and also to 3D point clouds.
Mattias visited the UASForum Conference in Linköping, Sweden, on Tuesday and Wednesday (24-25 May). Mattias presented how drones can be used in forestry as well as how the SLU in Umeå have implemented drones in the education.
On Thursday (21st April), Heather Reese, Head of Remote sensing division at SLU in Umeå, will give a seminar about “Removing the topographic effect from satellite data with the new 2m DEM”. It is scheduled to 14:30 in Ljungbergslaboratoriet (1st floor in the SLU building).
Adrian Straker will tomorrow, Friday, present his master thesis “Comparison of forest fire severity classification models based on aerial images and Landsat 8 OLI/TIRS images of a forest fire area in central Sweden”.
Room: Årsringen, next to the Ljungberg lab
Time: Friday 8th April, 9.00 am
Next week, Edward and André will present their thesis.
At the Ljungberg laboratory, we have started a project where we combine the traditional dowsing rod with latest drone technology. The goal is to improve the existing and important Depth to Water Map available online. At the Ljungberg lab, a teaching lab for advanced 3D remote sensing, we always aim to make a wide range of sensors available for our students – this project is a bold step in that direction.
[Swedish] I Ljungberglaboratoriet har vi startat ett projekt där vi kombinerar den traditionella och länge använda slagrutan med senaste drönar-teknik. Målet är att förbättra den befintliga och viktiga fuktighetskartan som finns på nätet. I Ljungberglabbet, ett undervisninglaboratorium för avancerad 3D fjärranalys, strävar vi alltid efter att ha ett stort antal sensorer tillgängliga för våra studenter och det här projektet är i linje med detta.
You probably understood that this was not a real project due to the publication date (April 1st)… but please contact us if you have ideas for possible use of drones and collaboration suggestions.
[Swedish] Förhoppningsvis förstod alla att detta inte var ett riktigt projekt då det publicerades 1 april… men vi tar gärna emot nya idéer på drönaranvändning och möjliga samarbeten.
The title might not tell you much about what this seminar is about… However, if you come to Ljungbergslaboratoriet on Thursday 17th March 14:30, Sebastian Schnell will tell you more about his work in the Advanced SAR-project.
On Thursday (18th Feb), Håkan Olsson, Professor in Remote sensing at SLU in Umeå, will give a seminar about remote sensing from 1930 until today. It is scheduled to 14:30 in Ljungbergslaboratoriet (1st floor in the SLU building).