Author Topic: Interface for a handicapped person?  (Read 9775 times)

Offline cpetersen

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on: January 23, 2008, 11:54:44 AM
My sister is a recent quadriplegic (car accident). She has arm movement but not the use of her fingers. After seeing the VR demo I though I could lend my software skills and come up with a system (perhaps a head tracker) that would enable her to use a computer effectively.

Basically a head tracker with combined with a mouse button to select. Has anyone considered such an application?



Offline troy59

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Reply #1 on: January 23, 2008, 03:15:35 PM
It wouldn't be terribly difficult, its a good thing she can at least move her arms. You could try head tracking and then make a mouth button for clicks and for a right click you just hold it down for about 3 sec without moving it. It won't be too hard, and good look to you and your sister



Offline ZaPPZion

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Reply #2 on: January 23, 2008, 05:14:17 PM
if she can move her arms, then you can have a button being pressed by some part of the arm i guess.
It's awesome that people are trying to help disabled people out:)



Offline troy59

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Reply #3 on: January 23, 2008, 05:53:36 PM
i was thinking of that two, you could have the left click button in her mouth, then, you can develop a right click that uses her arms. I've been thinking of a mouth idea, so far i've got a vision of a mouth gard(ones that football players use) and a button inside of it, but i'll get back to you on that.



Offline nakoda

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Reply #4 on: January 23, 2008, 07:54:10 PM
a simple switch like the one Denzel Washington uses in The Bone Collector would work well, it is a simple tube with a button on the end that one can bite, or pressure with the tongue. Longer pressure = right click, as someone mentioned earlier.

(yes im aware that the actual device he uses in the movie is slightly different, but the simplicity of the tube i think is more aligned with the aesthetics of the wiimote project than a football mouth guard.. no offense meant, just feedback ^.^)



Offline cpetersen

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Reply #5 on: January 23, 2008, 08:31:41 PM
Thanks for all the comments.

The first order of business would be to convert the head tracker to move the mouse pointer. Hopefully it would have the resolution required. I've ordered my Wii remote, IR LEDs, and LED safety glasses so I'll go have a look at the code while I wait for them to arrive.

Any thoughts feel free to comment. It would be great if this would work.

Carl



Offline troy59

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Reply #6 on: January 24, 2008, 09:25:59 AM
@ nakoda

I didn't meen an actual mouthguard, just something you stick in your mouth that fits into your teeth, nice and snug like. also, the tube idea would be good too.



Offline nakoda

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Reply #7 on: January 24, 2008, 07:04:09 PM
i see what you mean now, though i really did have a helmet mouthpiece emblazoned in my mind when i first read your description. ^.^



Offline troy59

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Reply #8 on: January 29, 2008, 02:04:24 PM
lol.. that would be kinda akward "blue 42, blue 42, set, HIKE!"



Offline wiiaudi

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Reply #9 on: February 21, 2008, 10:31:18 AM
Hi,
Just found this website/forum today and therefore my first post. I'm an occupational therapist and work with assistive technology for computer access but am interested in other apps for the Wii.
There are some options on the market that been developed for accessing computer with head movement only as the input. One is called the "headmouse" see link: http://www.orin.com/access/headmouse/

We use this one where I work. Uses a tool bar on top of the screen that allows you to select right click, left, double etc. by moving your head to that tool bar and then "dwelling" for a second or two. that enables you to perform you next click (ie. double clicking) based on what you chose. So you would then move you head, the mouse would point based on head movement, look at icon on desktop for 1-2 second and it would click and open up that specific app.

The only draw back is the expense (We puchased the software for around $500 and a PC webcame for another $50). I see the company now packages the 2 together but for $1000.

I think if you could come up with a way to access the PC using a Wii for around $250, that's worthwhile. If you need something right away and have $1000 available, then go for the headmouse.

Hope this helps.



Offline cpetersen

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Reply #10 on: February 21, 2008, 11:23:15 AM
There is a new unit on the market and it's a lot cheaper than $1000, more like $500 or less.

Here's a link: http://www.naturalpoint.com/smartnav/

On my work with the Wii for face tracking I'm using voice recognition for the "double click", "left click", "right click", etc. Do you think being able to select the click on screen is better?

Carl



Offline Senate

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Reply #11 on: March 03, 2008, 12:52:19 PM
Wow nice project! I hadn't thought about the voice recognition! I think you should combine the two (Mouse click+ Voice recognition)in the future...I'd start with MouseClick although because it seems easier to code...

Sorry for my english I'm french!

Keep on creating it's nice to read about your stuff!



Offline tmizas

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Reply #12 on: March 05, 2008, 04:01:36 PM
I don't know if you're interested, but I just finished writing an app so if the user has 2 IR emitters on either side of his head and tilts it left, after 2 seconds the mouse starts moving left. Same for the other 3 directions. A tilt left and back to the origin (in under 2 seconds) left clicks, a tilt right and back to the origin right click, a tilt forward and back to the origin double clicks.

I can post the code if you're interested, although it's not terribly difficult to write.



Offline cpetersen

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Reply #13 on: March 05, 2008, 04:12:37 PM
Sure, that's interesting. Post away. The more examples we have to more likely someone will find some use for it.

Do you get enough movement in the vertical direction. I tried that and wound up putting the ir reflector/source on the bill of a cap to make it easier to sense the up down motion.

What did your write it in?

I've been coding on my iMac so I'm using java just to get some level of portability. I'll be posting my code here as well.

Regards



Offline tmizas

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Reply #14 on: March 15, 2008, 03:13:51 PM
I wrote it in C# You can download it at http://files.filefront.com/MouseApp2zip/;9824129;/fileinfo.html It's nothing fancy and could definitely be improved on. But it's a start.