Dries Raymaekers
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Dries Raymaekers's Groups

Dries Raymaekers's Discussions

Mapping with the X8 wing

Started this discussion. Last reply by Plinio Augusto Jul 20, 2015. 8 Replies

Hi all,I want to share some of the latest results I achieved with using ardupilot and my X8-wing for aerial mapping. Below you can see a picture of the X8-wing with the ardupilot and camera (canon…Continue

Aerial mapping: first results

Started this discussion. Last reply by brakar Jun 1, 2012. 4 Replies

Hi all,I want to share with you the first results obtained with my Bixler-UAV. I had never flown a RC plane before but must say that this little hobby quite gets into your skin once you get familiar…Continue

Newbie - GPS question

Started this discussion. Last reply by Dries Raymaekers Sep 14, 2011. 2 Replies

Hi there! After scrolling around for a couple of days on this site, it’s time for a first post. I am looking into building my own UAV, and this site along with RCgroups is a great source of…Continue

 

Dries Raymaekers's Page

Latest Activity

Dries Raymaekers replied to TersusAdmin's discussion L1/L2 RTK trial user wanted
"Interested for photogrammetry applications! info@usense.be"
Dec 28, 2015
Dries Raymaekers commented on Chris Anderson's blog post 3DR Aero and X8 now $350 off
"X8+ is really great value/money! Here you see an example of last August where I integrated a thermal camera to map diseases in oil palm trees. Will these product be discontinued soon? And more important, will 3DR offer a similar octocopter in the…"
Dec 13, 2015
Dries Raymaekers replied to Ned Horning's discussion The right tool for the job in the group Agricultural UAVs
"Great discussion! The article I was referring to indeed is aimed to calibrate expensive airborne and satellite imagery but general idea (measurement of the reflected light normalized for changing illumination and viewing conditions) also applies to…"
Sep 29, 2015
Dries Raymaekers replied to Ned Horning's discussion The right tool for the job in the group Agricultural UAVs
"Yes .. I agree. I also would at least take 5-6 pixels on your target as margin. Some nice literature on this type of vicarious airborne image calibration: http://www.mdpi.com/2072-4292/7/5/6196 I guess this one would be large enough for any job…"
Sep 27, 2015
Dries Raymaekers replied to Ned Horning's discussion The right tool for the job in the group Agricultural UAVs
"Ned, Great write-up on difficult theme. I have some additional points on calibration: John Sulik, you mention a few lines back “Teflon works well up to 1000nm if it is elevated far enough above ground to allow light underneath it to diffuse. I…"
Sep 26, 2015
Dries Raymaekers replied to Thierry YABI's discussion Use of UAVs to calculate with precision areas of cashew farms? in the group Agricultural UAVs
"Wauw.. A radius of 250km.. That's almost 200000 km2 which is the size of a small country. We do around 2-4 km2 per flight with our fixed wings. Even if you can increase to lets say 20km2 if allowed to fly above 500m, just do the math…"
Aug 9, 2015
Plinio Augusto replied to Dries Raymaekers's discussion Mapping with the X8 wing
"++ Feedback CAM ArduCopter: added support for simple digital…"
Jul 20, 2015
Plinio Augusto replied to Dries Raymaekers's discussion Mapping with the X8 wing
"Adding: Brian Christal replied to Dave Williams's discussion "Using AUX pins as relays for CHDK" on DIY Drones------------Chasing the camera delay from CAM trigger message to shutter open is futile. Feedback from…"
Jul 20, 2015
Plinio Augusto replied to Dries Raymaekers's discussion Mapping with the X8 wing
"Hello Dries, I'm building a model like yours. What is the speed of this model? Do you have problems between the trigger signal and the opening of the shutter? I use a quadricopter for mapping. Flying to 5 m / s I have delay between the trigger…"
Jul 20, 2015
Dries Raymaekers commented on PIRIYEV AERO's blog post SMARTPLANE Drone Plane with Application and Hardware Platform
"Looks like the Ebee ... does it also have the servos of the elevons inside the fuselage?"
May 13, 2015
Dries Raymaekers commented on Yan Ma's blog post Vision based upgrade for Aerial filmmakers
"@Yan Ma, When do you expect to have the instructions for integration with 3DR X8+? Weeks, months, .. ? Nice demo!"
Feb 25, 2015
Dries Raymaekers commented on Dries Raymaekers's blog post UAV mapping in Ethiopia - Looking for Malaria Hotspots
"I will do both.. thanks for the suggestion! "
Feb 14, 2015
Patrick Egan commented on Dries Raymaekers's blog post UAV mapping in Ethiopia - Looking for Malaria Hotspots
"Great! We need pilots like you. Pls make sure to sign up at air-vid.com"
Feb 12, 2015
Patrick Meier commented on Dries Raymaekers's blog post UAV mapping in Ethiopia - Looking for Malaria Hotspots
"Nice job, Dries, you should shared this with the UAViators-Core Team."
Feb 12, 2015
Dries Raymaekers posted a blog post

UAV mapping in Ethiopia - Looking for Malaria Hotspots

During our latest mission, we went to Ethiopia to map malaria hotspots. The idea is to look for small water bodies which in the dry season are a source for mosquitos and their larvae. From these hotspots, the mosquitos spread in the rainy season all over the region, and if infected by the malaria parasite can do a lot of damage to the local community. I have done several demonstration flights and trained local students on how to operate the UAV.  During one mission we can map an area of 2km2 on…See More
Feb 10, 2015
Dries Raymaekers commented on MultiSpek's blog post The MultiSpek opens a new horizon in aerial survey
"Can you provide us with the spectral response of the 3(?) bands? I am guessing you removed the NIR filter and added a blue or red filter in front of the CCD? Or did you use a specific filter? Do you have some example pictures? Good idea about the…"
Jan 18, 2015

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Dries Raymaekers's Blog

UAV mapping in Ethiopia - Looking for Malaria Hotspots

Posted on February 10, 2015 at 11:30am 3 Comments

During our latest mission, we went to Ethiopia to map malaria hotspots. The idea is to look for small water bodies which in the dry season are a source for mosquitos and their larvae. From these hotspots, the mosquitos spread in the rainy season all over the region, and if infected by the malaria parasite can do a lot of damage to the local community. I have…

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Workshop on UAV-mapping technology in Lima, Peru

Posted on March 23, 2014 at 9:30pm 10 Comments

In the framework of the VlIR-UOS-North-South-South initiative aimed at capacity building for developing countries, Latin-American and African Universities participate in a 7 day workshop on UAV-technology, currently being held in Lima, Peru. In this workshop organized by University Nacional la Molina,…

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Drone mapping in Peru

Posted on May 26, 2013 at 11:30am 1 Comment

University grounds: Above

Below you can find some results of a 4 week mapping campaign I did in Peru along with people from KU Leuven, Belgium and University La Molina, Peru. Images were processed with PIX4D and dronemapper. Special thanks to JP from Dronemapper for the good support and tips&tricks. I hope you like the videos!

Archeological site…

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ArduPlane flies at 4500m altitude

Posted on April 7, 2013 at 1:30pm 17 Comments

 

During a 4 weeks mission to Peru we have done several UAV flights for mapping purposes. These included flights at high altitude over the Andes. The highest one was over the scenic “Bosque de Piedras”, at 4500m altitude, where we have mapped a 1km2 area in a matrix flight pattern.

 …

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