[oats-sig] new member of mailing list

I really like the idea of the gaze-driven switch. I also, really,

I'd have a go building this... Might need some pretty simple instructions
and a bit of time though...  I've got ubuntu desktop installed...

AT to try:  try GazeTalker, Dasher (! Could be fun!), ClickNType/SAW for on
screen keyboards... 

Nice one Stephen.

Cheers.

Simon

-----Original Message-----
From: oats-sig-bounces at lists.becta.org.uk
[mailto:oats-sig-bounces at lists.becta.org.uk] On Behalf Of stephen emslie
Sent: Monday, October 01, 2007 4:35 PM
To: OATs Project Special Interest Group
Subject: Re: [oats-sig] new member of mailing list

Hi All

I did some work on this over the weekend, mostly building and setting up
opengazer and playing around with some ideas. Its pretty fun once you get it
working.

The next step is to start interpreting the calculated gaze positions into a
switch activation. opengazer outputs everything to a port as it works, which
should make things a bit easier. Any suggestions on good assistive software
I can play around with? I hear there's this great "Jambu" thing... :)

I'll probably start with a simple threshold distance to a corner of the
screen and see how that works out. The accuracy is terrible with this
webcam, but it should do for a basic switch.

What would be really great is if we could get opengazer running with other
webcams to compare accuracy.

Any takers? ;) I can put up some instructions on how to build the whole
thing. I should probably warn in advance that it is a bit of a pain to get
right because vxl needs to be built from scratch, but well worth it! If
anyone is willing to lend a hand I think building some debs would really
help take the pain out of it.

On 9/28/07, Simon Judge <simon.judge at nhs.net> wrote:
> I really like the idea of the gaze-driven switch.  I also, really, 
> really, like the idea of a gesture-driven switch (i.e. choose the 
> movement, system learns, repeat the movement, system switches)...

I really like that idea! It sounds like a similar approach to Andrew
Duchowski's Eye Writing that he showed at COGAIN.

Perhaps a better camera (though still in the cheap off-the-shelf
range) could deliver a good enough accuracy to achieve something like this,
though I dont know for sure that camera resolution is the limiting factor
with opengazer. I would be useful to get Piotr's input on this.

> I look forward to seeing the first betas Stephen! (-;

me too. Now all I need is some free time!

Stephen Emslie

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