Re: Microsoft Surface - new video

[Dave Ward <DFHWukha@xxxxxxxxx>]

Did you also notice that it was registering a 'touch' even when the
hands were a few cm from the surface?
I believe in the Surface Computing device the cameras are at a more
acute angle to the surface to improve this.

The 'Jeff Han' multi touch demos used Frustrated Total Internal
Reflection (FTIR) so there was less image processing involved.

http://cs.nyu.edu/~jhan/ftirsense/index.html


Paul Gale wrote:
> Ah very interesting. Similar kind of slight lag as seen in the surface
video.
>
> Paul.
>
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>> -----Original Message-----
>> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
>> Of Dave Ward
>> Sent: 15 June 2007 12:36
>> To: ukha_d@xxxxxxx
>> Subject: Re: [ukha_d] Microsoft Surface - new video
>>
>> Sorry I wasn't clear.
>> I meant that the camera system is more rugged than other touch
sensing
>> systems, such as resistive panel, surface wave, or beam break
systems.
>>
>>
>> You can see the effect of viewing the video feed from the cameras
in
>> this Microsoft demo.
>>
>> http://www.theyshoulddothat.com/2006/08/more_touchscreen_research_micr_
>> 1.html
>>
>> Multiple cameras are needed to allow the system to determine when
a
>> user
>> is touching the screen and not just moving their hands above it.
>>
>> Dave
>>
>>
>>
>>
>>
>> Paul Gale wrote:
>>> I would have thought the ruggedness would be easily solved by
the top
>> glass sheet.
>>> I guess thinking about it, that it uses projector technology
so that
>> the cameras can see through the top surface - what a horrendous
thought
>> ... what if the camera feeds were made available - bar and
restaurant
>> staff watching and evesdropping! Brings a new dimension to the
spitting
>> in the soup scenario!!!
>>> Paul.
>>>
>>>
>>>
>>>> -----Original Message-----
>>>> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
>> Behalf
>>>> Of Dave Ward
>>>> Sent: 15 June 2007 10:48
>>>> To: ukha_d@xxxxxxx
>>>> Subject: Re: [ukha_d] Microsoft Surface - new video
>>>>
>>>> It's also much more rugged.
>>>>
>>>> I think that the fact they are targeting retail and public
spaces is
>>>> also telling.  I don't think it's refined enough for home
use just
>> yet.
>>>> I think the wow factor would diminish quite quickly for
all but
>> simple
>>>> tasks you'd be reaching for a mouse and keyboard.
>>>>
>>>> Dave
>>>>
>>>> Stuart Poulton wrote:
>>>>> On 15 Jun 2007, at 10:18, Paul Gale wrote:
>>>>>
>>>>>> Mmm - there must be a reason why they're not using
a superior
>>>>>> display technology and cameras for touchscreen
interface rather
>>>>>> than an actual touch screen?
>>>>>>
>>>>> Firstly most touchscreen technology can't do
multitouch (this is
>>>>> changing)
>>>>>
>>>>>> Wonder if it's something to do with putting other
objects down on
>>>>>> the surface i.e. plates and cups etc.
>>>>>>
>>>>> Objects are one reason, it also allows you to put a 2D
barcode on
>> the
>>>>> "bottom" of something and it is recorgnised
by the surface.
>>>>>
>>>>> S
>>>>>
>>>>>
>>>>>
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>>>>>
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