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Belgium


Activity Feed

Dries Raymaekers replied to Jose Barreiros's discussion Meet uSense, an affordable multispectral camera for drones in Agricultural UAVs
"Sure .. like other already mentioned, specifications like sequioa would be great, along with an open library to coregister the spectral bands before the SfM processing!
all the best "
Jun 21, 2016
Dries Raymaekers replied to Jose Barreiros's discussion Meet uSense, an affordable multispectral camera for drones in Agricultural UAVs
"Nice name for a camera.. should perfectly fit in our USENSE UAVs! 
http://usense.be/

send me a PM if you'd like to test it out in a fixed wing!
cheers
Dries"
Jun 20, 2016
Dries Raymaekers commented on Evan Palmer's blog post High School Student Works On Drone That Assists Farmers
"Hi Evan,
Nice to see you are building your own mapping drone and share your experience. I have been flying the X8 for mapping since 2012 and must say it is an excellent plane for stable and long flights. Some tips which might help you:
* Best to…"
Jun 14, 2016
Dries Raymaekers replied to Dries Raymaekers's discussion Navigation problem X8-ArduCopter V3.2.1
"I checked again and all motor mounts look ok... but after such a long transport maybe indeed something is off.
Dataflash logs in attach.
thanks again! 2016-03-31 15-17-42.bin2016-03-31 17-17-47.bin"
Apr 1, 2016
Dries Raymaekers posted a discussion
Hi Guys,I am strungling with my X8 frame (3DR X8+ with ArduCopter V3.2.1 and pre-installed param). It was fine flying in Belgium, but after transportation to Peru I observe some issues during navigation (auto/RTL). I have redone the compass…
Mar 31, 2016
Dries Raymaekers commented on John C.'s blog post Sequoia In The Wild!
"oh yes ..one other question. Can you also share the output of the irradiance sensor? Or do you need PIX4D software to open it? One small advice on that sensor: try to put it as high as possible on your drone. You don't want to have any shade coming…"
Mar 1, 2016
Dries Raymaekers commented on John C.'s blog post Sequoia In The Wild!
"Thanks for this review! I really want to get my hands on one of these sensors to try them out! I have been looking at the images you provided and seems that the images of the individual bands are clear shots without too much blur which is a good…"
Mar 1, 2016
Dries Raymaekers replied to Tersus GNSS'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 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 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 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 just…"
Sep 26, 2015
Dries Raymaekers replied to Thierry YABI's discussion Use of UAVs to calculate with precision areas of cashew farms? in 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 you'll see uav…"
Aug 9, 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
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