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Subject: 
Re: Surveillance Robot
Newsgroups: 
lugnet.robotics
Date: 
Wed, 25 Nov 1998 19:56:41 GMT
Original-From: 
John Donaldson <JDONALDSON@GHG.spamlessNET>
Viewed: 
2041 times
  
  Try looking at http://www.clarc.org
  We have a ATV Specail Interest Group with links to ATV suppliers. atv
equitment is getting real small.

John A. Donaldson


Jim Thomson wrote:

I'm an Engineering student at Cambridge University.  My final year project
is 'Design and Construction of a Visually Guided Mobile Robot'.  I bought
the mindstorms kit to prototype with, but I've found it's range is good
enough, so I'm using it unaltered.

The aim is to have a surveillance camera (currently a Connectix Quickcam - a
paralell port camera) surveying an area of floor with the robot in it.  A
ball will then be put into the playing area and the robot should fetch the
ball and bring it back.  My project is inteneded as an investigation into
what can be done with a view to introducing a computer vision practical
module to the teaching course.  This is great because it gives me a very
good excuse to try other things along the way.

I'm using Visual C++ for my project - and the Microsoft Vision Software
Developers Kit to interface with the camera.

I've got a demo at the moment (for a presentation I'm doing tommorow - must
get on and actually write the presentation) which has a camera mounted on a
turntable.  The software takes two pictures, then uses image differencing to
detect where most motion has occured.  It the either turns left, right, or
stays where it is.  It then repeats this sequence.

If it senses motion straight ahead three times in a row, it launches a ping
pong ball (quite fast).

The demo is just to demontrate that I've got the camera and lego interfacing
with the computer, but I'm hoping to get onto some more complicated computer
vision stuff soon. - If there's a demand I could put the source code on the
web, as far as I can tell (having tried it with two different cameras the
quickcam and an intel USB camera) the code is reasonably portable, but it
does require some tweaking depending on the frame rate of the camera and
speed of turntable.

Oh well, I'd best get on with writing this presentation now - any comments
appreciated.

Jim

Web Page : http://www2.eng.cam.ac.uk/~95jmt2/ - It doesn't have anything to
do with lego on it yet.



Message is in Reply To:
  Re: Surveillance Robot
 
I'm an Engineering student at Cambridge University. My final year project is 'Design and Construction of a Visually Guided Mobile Robot'. I bought the mindstorms kit to prototype with, but I've found it's range is good enough, so I'm using it (...) (26 years ago, 25-Nov-98, to lugnet.robotics)

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