posted Mar 20th 2011 7:05am by
Mike Szczys
filed under:
laptops hacks,
multitouch hacks

Adding touch screen capabilities to your computer is really not very expensive, but it’s a huge amount of work to get everything looking the way that it should. [Deadbird] wrote up a step-by-step guide that will help you install touch screen hardware and get your netbook put back together just like new.
The hardware comes in two parts. There’s the transparent film that covers the screen and the driver board that reads the inputs. The film itself has an adhesive layer on the back that sticks to the LCD panel. But to install it you first must remove the panel from the bezel. You’re also going to need a place to house the driver board. [Deadbird] somehow found enough room inside the case for the controller, but he had to remove the keyboard and motherboard to set it in place. This translates to a complete disassembly of your eeePC. But if you’re used to touch-sensitive devices, and have ever found yourself touching an LCD monitor and wondering why the computer is not following the link, this may be worth it to you. You can see the final product in a clip after the break.
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posted Mar 14th 2011 6:04am by
Mike Nathan
filed under:
arduino hacks,
Kinect hacks,
multitouch hacks

It seems that with each passing day, the Kinect hacks that we see become exponentially more impressive. Take for instance this little number that was sent to us today.
[sonsofsol] has combined several open source software packages and a little electronics know-how to create one of the more useful Kinect hacks we have seen lately. His project enables him to manipulate 3D models in GEM simply by moving his hands about in front of his Kinect sensor. Using OpenNI and Ubuntu, all of his actions are tracked by the computer and translated into actions within the GEM 3D engine.
To make things easier on himself, he also constructed a pair of electronic gloves that interface with the system. Using an Arduino, the gloves send different complex commands to the 3D modeling software, just by touching different pairs of fingers together.
You really need to take a look at the video embedded below to get a feel for how complex [sonsofsol’s] “simple” mesh modeler really is.
Looking for more Kinect fun? Check out these previously featured stories.
[Thanks, Jared]
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posted Feb 14th 2011 2:01pm by
Mike Nathan
filed under:
Kinect hacks,
multitouch hacks

[Harishankar] has posted a video on his blog demonstrating the ability to control devices using the Microsoft Kinect sensor via IR. While controlling devices with Kinect is nothing new, he is doing something a little different than you have seen before. The Kinect directly interfaces with his Mac Mini and tracks his movements via OpenNI. These movements are then compared to a list of predefined gestures, which have been mapped to specific IR functions for controlling his home theater.
Once the gestures have been acknowledged, they are then relayed from the Mac via a USB-UIRT to various home theater components. While there are not a lot of details fleshed out in the blog post, [Harishankar] says he will gladly forward his code to you if you request it via email.
Thanks to [Peter] for the tip.
posted Feb 7th 2011 1:22pm by
Mike Szczys
filed under:
Microcontrollers,
multitouch hacks

This daughterboard lets [Matt Evans] drive a laptop LCD using a Beagleboard. Apparently the Beagleboard gained a VGA header when it moved to revision C but [Matt's] working with revision B4 which is why he had to do all of that ninja soldering with the blue wires. The driver board itself is a thing of beauty, hosting a DS90C363 LVDS serialiser as well as some buffer chips that handle level conversion for it. He’s also included an ATmega48 so that he has some options for future improvements.
The LCD is mounted in a custom acrylic case, with Beagleboard and driver board taped to the back of it. There’s RS232 and a USB hub which opens up the possibility of using a WiFi dongle for communications. So far he doesn’t have much functionality other than displaying images on the screen but there is some talk about using a touchpad for control. We’d love to see a touchscreen overlay, transforming the build into a proper ARM-based tablet.
posted Jan 19th 2011 2:40pm by
Mike Szczys
filed under:
Kinect hacks,
multitouch hacks

[Don't stop the clock] is doing some work with a projector, a camera, and the Kinect. What he’s accomplished is quite impressive, combining the three to manipulate light with your body. The image above is a safer rendition of the Hadouken from the Street Fighter video games, throwing light across the room instead of fire. This comes at the end of the video after the break, but first he’ll show off the core features of the system. You can hold up your hand and wave it to turn it into a light source. In other words, the projector will shine light on your hand, moving it, and manipulating the intensity based on hand location in 3D space. Since the Kinect is sending fairly precise data back to the computer the projected image is trimmed to match your hand and arm without overflowing onto the rest of the room until you touch your hand to a surface you want illuminated or throw the light source with a flick or the wrist. It may seem trivial at first glance, but we find the alignment of the projector and the speed at which the image updates to be quite impressive.
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posted Jan 18th 2011 5:17am by
Mike Szczys
filed under:
Kinect hacks,
multitouch hacks

Custom displays are a lot of fun to look at, but this one is something we’d expect to see at a trade show and not on someone’s kitchen table. [Taha Bintahir] built a 3D volumetric display and is showing it off in the image above using a 3DS file of the Superman logo exported from Autodesk. In the video after the break you can see that the display is a transparent pyramid which allows a viewer to see the 3D object inside from any viewpoint around the display. Since first posting about it he has also added a Kinect to the mix, allowing a user to control the 3D object with body movements.
There’s basically no information about the display hardware on [Taha's] post so we asked him about it. It works by first taking a 3D model and rendering it from four different camera angles. He’s using a custom designed prism for he display and the initial renderings are distorted to match that prism’s dimension. Those renderings are projected on the prism to give the illusion of a 3D object floating at its center.
We’re hoping to hear more details about how this was designed and what hardware is being used. We’ll post a follow-up if [Taha] shares more information.
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posted Dec 3rd 2010 11:34am by
Mike Szczys
filed under:
multitouch hacks

The BendDesk is a horizontal and a vertical multi-touch display connected as one curved surface. Think of it as a smart white-board and a multi-touch desk all in one. It can be used to sort and edit information, or to play games. Check out “Bend Invaders”, a game demonstrated in the video after the break. When you touch two fingers to the display the two points are used to aim a laser at the oncoming monsters.
The system uses a combination of two projectors shining on the surface from underneath and behind. A series of LEDs around the edges of the display bathe it in infrared light. Three cameras with IR filters peer at the underside of the acrylic surface and detect touches by distinguishing variances in the IR pattern through a process called Frustrated Total Internal Reflection. If you’re interested in more of the math and science involved there are a couple of papers available from the project site linked at the top of this post.
We’ve seen so many displays using the Kinect lately, it’s refreshing to see one that doesn’t.
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posted Nov 19th 2010 9:36am by
Mike Szczys
filed under:
multitouch hacks

[Raj Sodhi] and [Brett Jones] have been working on interactive augmented reality as part of their research at the University of Illinois. What they have come up with is a stylus-based input system that can use physical objects to create a virtual landscape. Above you can see that an environment was built using white blocks. A camera maps a virtual world that matches the physical design. From there an infrared stylus can be used to manipulate virtual data which is projected on the blocks.
What they’ve created is a very advanced IR Whiteboard. There are buttons on the stylus, one of which opens the menu, made up of circles that you can see above. From there, you can select a tool and make it do your bidding. After the break there’s a video demonstration where a game is set up, using the menu to place tanks and mines on the 3D playing field. We wonder how hard it would be to do this using a projector and a Kinect.
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