Gesture recognition
Posted: 31 January 2007 02:56 PM   [ Ignore ]
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I could’ve put this in the interface controlling project but I think it deserved his own thread.

It has already been done, but I haven’t seen any sources for me available yet. If you know please reply.

http://www.gskinner.com/blog/assets/GRalgorithm.html

The link I provided is a flash file of a gesture recognition algorithm used in flash.

I also saw it in the Tangent project, if someone could get hold of their thesis document it should be described there somewhere.

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Posted: 31 January 2007 03:50 PM   [ Ignore ]   [ # 1 ]
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hah hype you think just like me.. I am currently looking hard for their thesis :/ need to crack a login to get at it, I did find a nice high res photo of their installation. Still looking for more info on their project, they purposefully left a lot out on their zima site.

The old guy is flicking you off

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Posted: 31 January 2007 05:50 PM   [ Ignore ]   [ # 2 ]
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Since we are kind off stuck in a 2D surface with the FTIR tablets, I was thinking more off a way that OCR (Optical Character Recognition) works. Finding some kind off OCR tool to send a picture (or coordinates) to and get a letter back.
But seeing this in flash, wow!!

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Posted: 31 January 2007 06:08 PM   [ Ignore ]   [ # 3 ]
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My experience with OCR is that it really sucks, even with typed typfaces. Can’t imagine the horror it will create when you let it loose on handwritten gestures.

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Posted: 01 February 2007 12:37 AM   [ Ignore ]   [ # 4 ]
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Posted the source for this on nuigroup.com if you want to see algorithm

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Posted: 01 February 2007 04:24 PM   [ Ignore ]   [ # 5 ]
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Thnx for the source, hope I can make any sense out off it wink

In the meanwhile, I also found this idea: http://mrl.nyu.edu/~perlin/experiments/quikwriting/Quikwrite2.html
It has a small learning curve, but you don’t need to lift your finger!! See here for simulair ideas.

Still looking/thinking for a 2 finger solution though!!

Some one sugested tapping, like morse, but that would hurt your fingers after some time. Gesture would be nice for anything else to controll your app, but as I see it not for text input.

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Posted: 02 February 2007 10:27 AM   [ Ignore ]   [ # 6 ]
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Hype, is this the pdf you were looking for?

Pattern Matching on Stylus Keyboards...

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Posted: 02 February 2007 12:23 PM   [ Ignore ]   [ # 7 ]
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Yeah, I guess that’s the one. Now for us to implement the algorithms. :D

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Posted: 02 February 2007 06:51 PM   [ Ignore ]   [ # 8 ]
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You 2 are amazing.

Any online demo’s for that method, so I can figure out how the working version should work??

Although I don’t think I can reproduce it, because the word-prediction that is used…

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Posted: 01 March 2007 06:43 AM   [ Ignore ]   [ # 9 ]
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that quick write is kinda cool. I’d consider installing it on my PDA. They could have made it much easier to learn though - for instance, as soon as you go into the sector with A,S,K,M,Q it would show you those letters in the sector you need to move into in order to make them..

One thing with my screen is that it is a little more difficult to do dragging operations. Quick write might work well, but drawing more complex characters would be difficult, expecially with fingers..

Both of these methods so far are single handed operations. Something involving chording could be much faster.

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Posted: 01 March 2007 10:59 AM   [ Ignore ]   [ # 10 ]
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One of the most interesting input methods for tablet pc was this:
http://www.alphaworks.ibm.com/tech/sharktext
I think something like that should be nice with multi-touch.

By the way, a nice tutorial about gestures is in this book:
AI Techniques for Game Programming (Chapter 9 - include source code)

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Posted: 12 November 2015 09:09 AM   [ Ignore ]   [ # 11 ]
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Westbam - 31 January 2007 05:50 PM

Since we are kind off stuck in a 2D surface with the FTIR tablets, I was thinking more off a way that OCR (Optical Character Recognition) works. Finding some kind off OCR tool to send a picture (or coordinates) to and get a letter back.
But seeing this in flash, wow!!

In my opinon, ocr can only get text from image, if it’s a flash, maybe you need search some video reader.

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