Jack Crossfire's Blog – February 2012 Archive (5)

Marcy 2 parts

So after another $75, all of Marcy 2's brain finally arrived.  To be sure, Marcy 2 has gone through a lot of failed iterations & airframes.  This time, she's a Wifi monocopter.

As bad as it is for business, the cheapest…


Added by Jack Crossfire on February 28, 2012 at 6:00pm — 4 Comments

Monocopter cam dreams

This video was the 1st time we saw a camera on a monocopter getting useful images.  Indeed, it was the 1st video anyone ever made from a high speed camera.  Now we knew the shutter speed in daylight was fast enough & the image could be stabilized. 

If a flash is timed with the rotation, the camera could work in the dark.  The…


Added by Jack Crossfire on February 19, 2012 at 10:07pm — 7 Comments

OpenCV aspirations

In the quest for daylight flying, it's our 1st attempt at detecting the position of an aircraft using the SURF implementation in OpenCV. It's a long way from detecting something flying in a room with lots of background detail & even with a noise free background it has a hard time with accuracy. The single 3.7Ghz core does 8fps.…


Added by Jack Crossfire on February 11, 2012 at 7:24pm — 9 Comments

Ground based autopilot notes

We never stop debating the intelligence of sticking with a ground based autopilot.  People make money on chip autopilots.  They just need an RC transmitter & their plane.  We need a 3rd gadget, the ground based computer & have much shorter radio…


Added by Jack Crossfire on February 7, 2012 at 9:49pm — 7 Comments

Monocopter POV Choreography

The mane requirement for Marcy 1 was always the most advanced flying thing known to man, hovering autonomously, showing POV synchronized to Evans Blue: The Darkness That Follows. 2 years after envisioning it, we finally got it working. It doesn't come out as well with the slow RPM as hoped.

Getting the full POV image requires lying…


Added by Jack Crossfire on February 6, 2012 at 4:00am — 6 Comments

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