WiiLi.org

[gnireot]

Hello!


I've just typed a whole story, but it got erased because I couldn't post an URL yet ..... (please get rid of that function!!!!!!!)


however: the short version again:


I have worked on a piece of software that allows for gesture recognition with accelerometers a few month ago.

It allows you to 'teach' the software a set of gestures and then you can use those gestures for example in a flash movie to activate some events or whatever you want. If you are skilled enough you could even use it for handwriting recognition in the air.

screenshot of software : http://www.student.tue.nl/P/e.b.toering/gesture20analyse206.JPG
(remove the dashes)

It is currently made for a custom piece of hardware to work with a tagging system, but the underlying software is generic enough to use with the WiiMote

So

if anyone is interested I could rework it a little and everybody can use gestures in their projects,
I only have a WiiMote for a short while, I'm borrowing it from a friend and the Nintendo Factories are still working with retarded monkeys, so I don't have my own yet...

I'm interested if you have some suggestions or if this topic should be in another forum (probably) or if you think this already exists (it didnt 6 months ago)... please reply. I'd like to see others to use this really cool way of interacting with stuff.

e

[para]

I'm interested. What language is it written in and what license is the code?

Would it be possible to integrate it into a GPLv3 project (either as a plugin or directly into the existing librarys source) or are you looking to make it an independent package?

edit: My project link is in my profile if you're interested.

[para]

On second thought I think it would be best to keep a wiimote library as minimal as possible in regard to extended functionality beyond calculations that can be made directly from the data reports (angles, IR cursor position, etc).

I think this type of functionality would best suit the community if it were built into its own library that utilizes a lower level wiimote API. I'm still interested though

[gnireot]

Its written in C++ (and uses HMM (hidden markov models) to analyze the gestures)

Currently the algorithm to analyze the gestures is pretty optimized (though still not perfect) but the part from getting the data from bluetooth into the algorithm can use some (a lot) improvement...

There is currently no licence... Actually I wouldn't know what or how to licence it, I'm just a designer with some luck in programming... and I think it is valuable for the community to share it

I'll look up your project and then see if there is a combination or so...

[DarkRellik]

Hi Gnireot
I am interested in using some motion analysis for a small homebrew game project.

Can you indicate the different papers (on HMM or others) you read for developing your application?
The code would of course be also appreciable, but I like to understand new concept before applying them

Thanks

[gnireot]

I read various papers, but the academic stuff that is published on HMM's is often very technical, while is could be explained quite simple actually. However, if you want to know everything about it than look at this:

http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=18626

I think googling for Hidden markov models could do a lot. If you email me, i could send you some code

[DarkRellik]

Thank you

I read a few paper on HMM, I am now investigating how to clusterise the inputs, k-mean along with normal distribution seems the way to go.