cool multi-touch stuff !

[Jean-Christophe Helary]

Ok. I eventually made it to the Ars Technica paper... Now if you had  
made that clear from the beginning...
http://arstechnica.com/news.ars/post/20070530-what-lurks-below- 
microsofts-surface-a-qa-with-microsoft.html

JC

On 1 juin 07, at 16:21, LuKreme wrote:

> On 31-May-2007, at 22:59, Jean-Christophe Helary wrote:
>> On 1 juin 07, at 13:43, LuKreme wrote:
>>> On 31-May-2007, at 19:09, Jean-Christophe Helary wrote:
>>>> On 1 juin 07, at 09:54, Ashley Aitken wrote:
>>>>> Interestingly, as reported elsewhere, the Microsoft Surface  
>>>>> doesn't use touch-screen technology but instead many (5)  
>>>>> infrared cameras under the screen.
>>>>>
>>>>> I'm not sure if that will scale well to large whiteboards.
>>>>
>>>> Because the purpose is different. Using cameras (in a sort of 3d  
>>>> internal rendering) allows for recognizing object that are put  
>>>> on the table. Combining that to multitouch technology (2d  
>>>> mostly) allows for new combinations. At least that is my  
>>>> understanding.
>>>
>>> I can't imagine that even five cameras can provide the fine touch  
>>> control of a touchscreen.
>>
>> Two cameras are enough to offer a 3d perception of the object put  
>> on the 2d glass surface. Object recognition processes do the rest.  
>> And that says nothing about what can be added by the touchscreen  
>> functions.
>
> I am not talking about OBJECTS, I said, "I can't imagine that even  
> five cameras can provide the fine touch control of a touchscreen".
>
> As in, TOUCHING the surface with your FINGERS and CONTROLLING what  
> is happening.