Touch Screen Software

Information about touch screen software and anything related with touch screen technology.


Archive for the 'Touch Screen Computers' Category



How to create a very cheap multi-touch pad

Sunday 18 July 2010 @ 12:50 pm

This is probably the cheapest and fastest way to create your own multitouch table.

Materials:
cardboard box
piece of clear flat sturdy material (glass, plexiglas, …)
paper (almost any paper)
qebcam or video camera
computer
When fingers are placed on the surface, they create shadows. The webcam records the shadows and the image is sent to the touch software.
For this to work room must not be completly dark. The results will be best when the room lighting is even.
Developed by David Wallen, Christian Moore, Laurence Muller and NUIgroup Community. Visit http://sethsandler.com/multitouch/mtmini/ for more information and download the software.

Materials:

  • cardboard box
  • piece of clear flat sturdy material (glass, plexiglas, …)
  • paper (almost any paper)
  • webcam or video camera
  • computer

When fingers are placed on the surface, they create shadows. The webcam records the shadows and the image is sent to the touch software. For this to work room must not be completly dark. The results will be best when the room lighting is even.

Developed by David Wallen, Christian Moore, Laurence Muller and NUIgroup Community. Visit http://sethsandler.com/multitouch/mtmini/ for more information and download the software.




Low-Cost Touch Screen Whiteboard using the Wiimote

Saturday 3 July 2010 @ 1:45 am


Using infrared (IR) light pens and the Wii Remote, it is possible to create very low-cost multi-point interactive whiteboards and multi-point tablet displays. Johnny Chung Lee, Carnegie Mellon University. The software can be downloaded at johnnylee.net.




Touch Screen LCD Monitor

Tuesday 20 April 2010 @ 1:45 am

Touch screen LCD monitor – how does it work?

Touch screen monitors are a device by which we give inputs and take outputs as information without using any other external device. Instead of using a keyboard or mouse.

A touch screen is a display which can detect the presence and location of a touch within the display area. The term generally refers to touch or contact to the display of the device by a finger or hand. Touch screens can also sense other passive objects, such as a stylus.

The touch screen has two main qualities. First, it allows you to interact with what is displayed directly on the screen, where it is displayed, rather than indirectly with a mouse (computing) or touchpad. Secondly, it lets one do so without requiring any intermediate device, again, such as a stylus that needs to be held in the hand.

Touch screen monitors are used in a variety of different applications including POS (point of sale) cash registers, PDA’s (personal digital assistants), ATM’s, car navigation screens, cell phones, gaming consoles and any other type of appliance that requires you to input and receive information.

Types of technology available in Touch Screen. The commonly used are underneath:

  • Resistive Touch monitors

A resistive touch screen monitor usually has a coat of very thin electrically conductive and resistive layer of metal. When pressed, the change in electrical current can be measured and the input processed by a computer. While very affordable they only offer about 75% clarity, they can also be easily damaged by objects that are sharp. Resistive touch screen monitors are the most popular types of touch screen monitors used today. They are usually not effected by dust or liquids which make them very reliable.

  • Surface Wave Touch Screen Monitors

Surface wave touch screen monitors use ultrasonic waves to process inputs from the screen. Ultrasonic waves flow over the touch screen, when a person touches the pad at a specific location, the wave is absorbed and immediately processed by the computer. While not as common as resistive touch panels, they are used in certain applications. Dust and water can contaminate a surface wave touch screen so it is important to keep the screens properly maintained.

  • Capacitive Touch Screen Monitors

Capacitive touch screens are coated with indium tin oxide. This material provides a continuous current across the screen. The current is precisely controlled throughout the touch pad and can be measured by the computer processor, when touched; the screen is able to send the processor specific coordinates to input information correctly. It is important to note that specific objects can only be used on capacitive touch screens. You can not use a stylus or a pencil for instance; usually you will need a bare finger. Capacitive touch screens have high clarity and are not affected by dust or liquids.

  • Infrared Touch Screen Monitors

There are two types of Infrared touch screen monitor screens, the first reacts to infrared or thermal waves (heat), unfortunately this technology is slow and does not work well with cold hands or objects. The second type of Infrared touch screen monitors use vertical and horizontal infrared sensors around the perimeter of the touch screen. Creating a grid, the touch screen is able to pinpoint the exact location of where the screen has been touched and send that information to the computer for processing. Infrared touch screen monitors are very durable and are used for industrial and military applications.




Walky software controls robots with iPhone touch screen

Sunday 21 March 2010 @ 8:41 pm
How to capture human walking, jumping or playing patterns to virtual characters or humanoid robots? Game controllers and keyboards are limited and pose a problem for beginner users.
Introducing the Walky concept.
Walky software controls a robot trough iPhone’s touch screen software.
Yuta Sugiura and his colleagues from Keio University, have developed a new concept for controlling robots and virtual characters.
Bipedal walking robot mimics the human walking where fingers are used as analogy to human legs.
Walky can be used to control walking, turning, jumping, kicking and sidestepping. All this with natural finger gestures as interface.
Finger actions are captured, sent to Walky touch screen software and transferred to the robot.
This provides a very intuitive controlling interface, since users don’t need to go through a learning cycle, to understand the instructions.

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Blogroll – Cool Sites

Electronista
Gadgets for geeks.
www.electronista.com

Geek.com
Community for technology enthusiasts and professionals.
www.geek.com

Corel Store
Check out touch screen apps from Corel.
store.corel.com



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