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Wearables Get a New Interface

How thermal touch was born
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prabhakar_deosthali
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Innovative
prabhakar_deosthali   6/25/2014 1:01:40 AM
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This seems to be something realy innovative. By having thermal imaging technique for sensing human touch, one can do away with touch sensing panels which are not practical in many of the applications.

Thermal imaging technique can be universally applied for all kind of objects , irresssssssrpective of their composition, surface smoothness and so on.

I congratulate the research team for thinking something outside the box!

tirlapur
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Re : Wearables Get a New Interface
tirlapur   6/25/2014 1:09:28 AM
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@Daniel, thanks for the post. I just watched the video and I really liked the concept of using heat generated by touch to know if the object surface is touched or not. I am curious to know if the same concept works for hot objects where the surface temperature is already  high ?

tirlapur
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tirlapur   6/25/2014 1:20:33 AM
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Thermal imaging technique can be universally applied for all kind of objects , irresssssssrpective of their composition, surface smoothness and so on.

@prabhakar, I agree with you that thermal imagiing technique can be universally applied for all kind of objects but what if the temperature of the surface is varying ? Will it identify any change in temperature as touch ?

Daniel Kurz
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Daniel Kurz   6/25/2014 11:00:06 AM
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Thanks a lot. I'm glad you like our concept!

Daniel Kurz
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Re: Re : Wearables Get a New Interface
Daniel Kurz   6/25/2014 11:07:27 AM
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Tirlapur, that's a very good question. Our current prototype assumes that the temperature of the surface is lower than the temperature of the fingertip.

Conceptually, however, it's only important that there is a difference in temperature between the finger and the surface -- it doesn't really matter which one is warmer than the other. In fact there are also some people whose fingertips are cold, and they leave a cold trace after touching surfaces at room temperature (~25 degrees Celsius).

We also have constraints on the shape and physical size of residual heat to be classified as resulting from a touch by a fingertip. But of course false positive detections still occur at this early prototype stage. More details on the underlying algorithm can also be found in our research paper, which will appear in the proceedings of the International Symposium on Mixed and Augmented Reality (ISMAR) in September.

We are working hard on making our approach deal with as many situations as possible in the future.

Himanshugupta
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Re: Re : Wearables Get a New Interface
Himanshugupta   6/25/2014 2:53:08 PM
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I think that infrared imaging has this huge limitation of false identification, background noise, saturation, delta-Temperature sensitivity etc. But as already in use, such camera can be a good ad on when most of the other sensory inputs fail. I think that there are some research groups working on superconductor detectors which can detect a single phonon so basically IR cameras with super high sensitivity. These devices will sure push the applications to new boundaries.

TaimoorZ
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Non-flat surfaces
TaimoorZ   6/25/2014 3:22:00 PM
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@Daniel: Interesting invention I must say. I think this will be particularly useful in designing touch-based surfaces that are non-flat. Currently, the touch screens are only available in a flat format and that puts up a big restriction. This technology may easily be used in designing touch-based non-flat surfaces like a mug or a pen.

TaimoorZ
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Re: Re : Wearables Get a New Interface
TaimoorZ   6/25/2014 3:30:15 PM
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". In fact there are also some people whose fingertips are cold, and they leave a cold trace after touching surfaces at room temperature"

@Daniel: It might sound like a very naive question, but don't the fingerprints left behind create a problem for the sensor? Do you have to clean them up after every use?

Hailey Lynne McKeefry
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Re: Re : Wearables Get a New Interface
Hailey Lynne McKeefry   6/26/2014 1:37:05 PM
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@Daniel, thanks so much for explaining that. It's so interesting, and so much more complex than I ever imagined. The devil is always in the details, isn't it?

t.alex
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Re: Re : Wearables Get a New Interface
t.alex   6/26/2014 6:41:21 PM
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Pretty interesting idea! Is it possible to recognize the object without even touching also?

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