Jack Crossfire's Blog – April 2008 Archive (4)

Text painting using the full frame camera & autopilot

Have beaten the light painting algorithm to death. These are movies of some words being painted by autopilot. The 35mm sensor captures the entire flight from underneath. Then the flight recording is shown in Google Earth.



Painting text in this confined space is the hardest thing the computer does. It requires a third entry in our gain schedule for velocity.



P=1.0 Vmax=2m/s satisfy radius=2m for painting text

P=1.0 Vmax=1m/s satisfy radius=5m for hovering

P=100… Continue

Added by Jack Crossfire on April 24, 2008 at 11:00am — No Comments

The first results using a 35mm sensor to capture an autopilot program from underneith, giving the same view as Google Earth.

The first results using a 35mm sensor to capture an autopilot program from underneith, giving the same view as Google Earth.…









Continue

Added by Jack Crossfire on April 19, 2008 at 4:34pm — No Comments

"affordable motion sensors may be at hand"

http://www.eetimes.com/news/latest/showArticle.jhtml;jsessionid=GW53B4ZAN3QNAQSNDLSCKHA?articleID=207001827



So for UAV booms to become the dot com booms of the future, sensors need to cost under $1. Basically another year, another wave of startups, but no affordable motion sensors. Interestingly, this year they're not making the mistake of attacking gyros like Invensense did. They're focusing on accelerometers, not saying they're accelerometers, and selling the application rather… Continue

Added by Jack Crossfire on April 6, 2008 at 4:30pm — 7 Comments

Hi res daylight

Had enough daylight to get 1/400 ISO 80 out of the A560. It definitely does a better job with those 7 million pixels. 1/400 is probably just below the minimum shutter speed. In dead calm air, the camera was much more stable. With the current yaw program & the instability of 1Hz GPS, only had enough battery power for a 270' turn on… Continue

Added by Jack Crossfire on April 1, 2008 at 11:00am — No Comments

Groups

Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

© 2019   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service