September 2013 Blog Posts (6)

Ecosynth Flying By the Numbers

We have flown the equivalent of once a week for an entire year over 3 250m x 250m sample sites with the same two copters: an investment of around $5000 in copter and flying gear. 

I ran some quick numbers from our flight logs and came up with a few fun statistics.  We have logged at least 230 mission days, and 315 total flights. I have to expect that some missions were…


Added by Jonathan Dandois on September 29, 2013 at 12:24pm — No Comments

Taking Stephen's concept hexa into full autopilot mode

After dealing with the motor issues (0.5-1 degree off alignment on 3 motors), the hexa is now performing really well.

Here you can first see a little stabilize test. Excellent performance, quick compensation. There was 'some' wind here, about 2-3Bft. 

Then the first fully autopilot flight @ 60m high. Amazingly, the hexa just goes straight up as if there's no wind…


Added by Gerard Toonstra on September 27, 2013 at 6:00pm — 1 Comment

Timing Photoscan with the Python API

I recently starting playing with the Photoscan Python API and adapted a nice little script from the forums for running a job in Photoscan, saving and exporting points and all the while recording time stamps for the entire process.  

Previously we had used a screen capture…


Added by Jonathan Dandois on September 26, 2013 at 5:40pm — 1 Comment

Ecosynth Featured by NSF: A Social Network for 3-D Ecology

Ecosynth popped up on the NSF twitter feed this morning with a link to a short feature on the project at…


Added by Jonathan Dandois on September 21, 2013 at 9:42am — No Comments

Stress test of Stephen's long endurance hexa design (update)

Today I have taken the hexa on a first waypoint mission:

  • 16 waypoints
  • 5m elevation
  • heavy wind (see video)
  • no crash

Setup using droidplanner:


Flight path visualized using Google Earth:…


Added by Thorsten on September 16, 2013 at 6:00am — 2 Comments

Most common species of tree on UMBC campus

This week I've been working on cataloging and checking the data for the trees collected on campus. I used the data to figure out the most common type of tree in the knoll section of the campus. The most common type was Acer Rubrum or the Red Maple. A close second was the Prunus Serotina or the black cherry tree. This isn't surprising as the most common type of deciduous tree in North America is the red maple. The…


Added by Andrea Farace on September 6, 2013 at 7:30pm — No Comments

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