Comments on: Multitouch project roundup http://hackaday.com/2008/05/20/multitouch-project-roundup/ Fresh hacks every day Wed, 25 Nov 2009 05:22:01 +0000 http://wordpress.com/ hourly 1 By: Eric http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35418 Eric Sat, 24 May 2008 01:13:03 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35418 @8 what no fps? @8 what no fps?

]]> By: Damion Fury http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35417 Damion Fury Thu, 22 May 2008 03:06:15 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35417 Microsoft spent it's money coming up with a "high resolution" interface device (1280x960 according to wikipedia), developing a complete user interface including finished applications that interact with other devices, and marketing it. They also probably spent money on building an SDK so that other developers can write software for it, a hefty fee on legal services in order to avoid infringing patents (or at least to avoid the appearance of patent infringement), and I'm betting they also set aside a good chunk in case a lawsuit actually was filed.<br><br>I'm not saying it was a better expenditure of money, but they _did_ get started in 2001 and the extended development time probably added to the cost. Still, I highly doubt it adds up to "billions."<br><br>I am curious about how the resolution of the open source products stand up against Microsoft and Apple. A little healthy competition might force them to turn their respective technologies into more than just expensive, and fairly frivolous, toys.<br><br>I'm going to go hide from the impending fan-boy attacks now. Microsoft spent it’s money coming up with a “high resolution” interface device (1280×960 according to wikipedia), developing a complete user interface including finished applications that interact with other devices, and marketing it. They also probably spent money on building an SDK so that other developers can write software for it, a hefty fee on legal services in order to avoid infringing patents (or at least to avoid the appearance of patent infringement), and I’m betting they also set aside a good chunk in case a lawsuit actually was filed.

I’m not saying it was a better expenditure of money, but they _did_ get started in 2001 and the extended development time probably added to the cost. Still, I highly doubt it adds up to “billions.”

I am curious about how the resolution of the open source products stand up against Microsoft and Apple. A little healthy competition might force them to turn their respective technologies into more than just expensive, and fairly frivolous, toys.

I’m going to go hide from the impending fan-boy attacks now.

]]> By: MaX-MoD http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35416 MaX-MoD Wed, 21 May 2008 22:34:33 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35416 and say Microshaft spent billions in research for that and there is Open source solutions -sub 100$ material cost- working.<br>I don't know how do they spend their money... and say Microshaft spent billions in research for that and there is Open source solutions -sub 100$ material cost- working.
I don’t know how do they spend their money…

]]> By: a random John http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35415 a random John Wed, 21 May 2008 19:26:39 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35415 The multi-touch display that I've played with (made by Enthought) had an IR camera and could track 50 points at a time through clever software. If tracking more than four points at once is important then a wiiMote just won't cut it. The multi-touch display that I’ve played with (made by Enthought) had an IR camera and could track 50 points at a time through clever software. If tracking more than four points at once is important then a wiiMote just won’t cut it.

]]> By: andrew http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35414 andrew Wed, 21 May 2008 18:02:40 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35414 @camerin: yes that'll work but it'll be *very* low-res, even with dozens of LED/detector pairs. I have an old Tektronix 1281 logic analyzer that uses that exact concept for its on-screen menuing. It does work, but not for multitouch, and not for any kind of decent resolution. @camerin: yes that’ll work but it’ll be *very* low-res, even with dozens of LED/detector pairs. I have an old Tektronix 1281 logic analyzer that uses that exact concept for its on-screen menuing. It does work, but not for multitouch, and not for any kind of decent resolution.

]]> By: crimsonred http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35413 crimsonred Wed, 21 May 2008 07:45:03 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35413 Software and development of these applications can be found on <a href="http://www.nuigroup.com" rel="nofollow">http://www.nuigroup.com</a> which is also the new home of Touchlib from the post above. NUIGroup is a community of multitouch developers and natural user interface researchers. A great place to learn how to make software AND hardware for multitouch devices! =) Software and development of these applications can be found on http://www.nuigroup.com which is also the new home of Touchlib from the post above. NUIGroup is a community of multitouch developers and natural user interface researchers. A great place to learn how to make software AND hardware for multitouch devices! =)

]]> By: atrain http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35412 atrain Wed, 21 May 2008 06:55:33 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35412 ptr:<br>Theres a few different libraries around. For example:<br><a href="http://www.whitenoiseaudio.com/touchlib/" rel="nofollow">http://www.whitenoiseaudio.com/touchlib/</a> ptr:
Theres a few different libraries around. For example:
http://www.whitenoiseaudio.com/touchlib/

]]> By: Ptr http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35411 Ptr Wed, 21 May 2008 06:32:56 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35411 The hardware end seems to be on a good roll, but I haven't seen that much software that supports muti-touch. there should be more detailed info about the software end. The hardware end seems to be on a good roll, but I haven’t seen that much software that supports muti-touch. there should be more detailed info about the software end.

]]> By: atrain http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35410 atrain Wed, 21 May 2008 06:02:35 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35410 Sure, I've seen johnny's work. Thats what inspired my question.<br><br>Can the hacked cameras compare to a wiimote? If the cameras pick up an external light source, how sensitive will they be to it?<br><br>And finally: Why bother implementing big algorithms to track location when the wiimote has that built in? By freeing yourself from big fancy stuff like that, this stuff can eventually make its way into robotics and hobby electronics. All you need is a bluetooth enabled platform, a bit of code, and your ready to roll. Sure, I’ve seen johnny’s work. Thats what inspired my question.

Can the hacked cameras compare to a wiimote? If the cameras pick up an external light source, how sensitive will they be to it?

And finally: Why bother implementing big algorithms to track location when the wiimote has that built in? By freeing yourself from big fancy stuff like that, this stuff can eventually make its way into robotics and hobby electronics. All you need is a bluetooth enabled platform, a bit of code, and your ready to roll.

]]> By: camerin http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35409 camerin Wed, 21 May 2008 05:11:33 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35409 i dont have any experence with software but i want to build an array of leds that suround the monitor. on set sending light the other reciving light. these leds would make a grid. as your finger breaks the light the grid calcuates the possition of your finger and uses it for the input. hard ware build is simple the concept is simple enough implimetation is the part i dont undersand. yet. any ideas?? i dont have any experence with software but i want to build an array of leds that suround the monitor. on set sending light the other reciving light. these leds would make a grid. as your finger breaks the light the grid calcuates the possition of your finger and uses it for the input. hard ware build is simple the concept is simple enough implimetation is the part i dont undersand. yet. any ideas??

]]> By: Mac Cody http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35408 Mac Cody Wed, 21 May 2008 04:54:55 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35408 @atrain<br>Check out Johnny Chung Lee's projects page at <a href="http://www.cs.cmu.edu/~johnny/projects/wii/" rel="nofollow">http://www.cs.cmu.edu/~johnny/projects/wii/</a> and scroll down to "Low-Cost Multi-point Interactive Whiteboards Using the Wiimote". That should give you an idea of how well it works. @atrain
Check out Johnny Chung Lee’s projects page at http://www.cs.cmu.edu/~johnny/projects/wii/ and scroll down to “Low-Cost Multi-point Interactive Whiteboards Using the Wiimote”. That should give you an idea of how well it works.

]]> By: Alan http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35407 Alan Wed, 21 May 2008 03:55:46 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35407 This is great!<br>I'd love to see this on my desktop one day for multitasking. <br>I think this could be the death of the mouse. This is great!
I’d love to see this on my desktop one day for multitasking.
I think this could be the death of the mouse.

]]> By: atrain http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35406 atrain Wed, 21 May 2008 03:35:18 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35406 A lot of these hacks seem to revolve around total internal reflection inside acrylic pains. Since the Wiimote includes a camera + software to track 4 separate IR points at one time, how does its accuracy compare to that of the webcams? Will it pick up the light that comes off these things? Since its designed to track IR, wouldn't it be less work than writing apps for webcams? A lot of these hacks seem to revolve around total internal reflection inside acrylic pains. Since the Wiimote includes a camera + software to track 4 separate IR points at one time, how does its accuracy compare to that of the webcams? Will it pick up the light that comes off these things? Since its designed to track IR, wouldn’t it be less work than writing apps for webcams?

]]> By: Andrew http://hackaday.com/2008/05/20/multitouch-project-roundup/comment-page-1/#comment-35405 Andrew Wed, 21 May 2008 02:47:30 +0000 http://hackaday.iheartcashews.com:8181/2008/05/20/multitouch-project-roundup/#comment-35405 How do they do multi-touch without a Camera? Is it possible to use the IR sensors from a mouse (ball style) or laser light sensors (from LED mouse) or would they not be powerful enough? How do they do multi-touch without a Camera? Is it possible to use the IR sensors from a mouse (ball style) or laser light sensors (from LED mouse) or would they not be powerful enough?

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