An electromagnetic tracking_ system spy gear uses a transmitter and receiver. The transmitter is in

The movie Avatar (2009) was something special. Not only because it looked spectacular 3D image, but also because there were used. Many technical highlights One such technique - shooting with a virtual camera - you can soon own use.
In the movie Avatar (see box), the main characters play essentially two roles: a human and their avatar. But if they are the avatar, they do not pull a costume, but the costume is added later on the computer. When filming is there is nothing to see. It is difficult for the director, because they can not see how to set it shows at the computer screen.
As the title implies, the film revolves around Avatars. You know that term may be computer games, where you let yourself represented by one or another figure (that's your avatar). The film is slightly different. Here are the avatars no virtual dolls, but real beings.
The (human) characters have traveled to a distant spy gear planet with strange creatures. They have those creatures 'recreated' and some counterfeit Na'vi (the name the people) is the avatar of someone. A man is physically located in a specific location (eg in bed), but he has been linked to a fake Na'vi and who then goes on the road. The person controlling the creature so pure in his thoughts.
In order spot to get an idea of the end result James Cameron (director of Avatar) had developed a special camera. An expensive device, of course, but researchers at the University of Abertay Dundee presented this week the same kind of system for your home. The Motus - as the system is called - is a lot cheaper: from the beginning of 2011, he should be in the store for less than 100 euros. Same world, but different
The device Cameron (Simul-cam) is not a real camera if you look through it, you do not see the world around you and he does nothing. It is in fact an ordinary display, only it looks like a camera by what you see on the screen. You see: the virtual version of your world around you, it looks real, but it's not. The system is therefore sometimes called a virtual camera.
This example makes the idea might be a little clearer. On the set, you see the world like the left picture. However you look through the Simul-cam (ie, on the screen of the fake camera) you can see it at right. It just seems really, except that such beings spy gear do not exist in our ...
To show a virtual version of the world that needs to be there. Therefore, a 3D model must be present when the fake camera is pointing. That is to say that the camera spy gear system spy gear is connected to a computer running a 3D world. That world 'filming' the system and then the "admissions" then you see on the monitor on the set. Magnetic field
The researchers from the University of Abertay Dundee have developed system (called Motus) very similar to the Simul-cam, but a lot cheaper. The core is a motion controller_: a device used to control your movements, just like the Wii Remote. Their controller (the "_Sixense True Motion " http://www.sixense.com/) but works on electromagnetism.
An electromagnetic tracking_ system spy gear uses a transmitter and receiver. The transmitter is in the controller, and includes three coils that are perpendicular to each other. By putting the coils turns 'electrified' occurs whenever a magnetic field. The receiver - which is in the base station, for example, the computer - also includes three orthogonal coils. There is an electric spy gear voltage is generated when the transmitter is nearby (called [Induction (electricity)]). By measuring the voltage of each coil of the position and orientation of the transmitter can be determined. And so the base station knows exactly where the controller is located and how it is addressed.
The drawing tablets Wacom also use electromagnetic induction. However, spy gear the transmitter and receiver are both in the tablet so that the pin does not need electricity. The tablet is equipped with rows of coils and there is a magnetic field is applied. spy gear When the nib is going through such a field, there is tension in the pen (stylus) saved. That tension stylus used to return to the screen to send a magnetic signal - to the receiving coils - and so the position can be determined. Wacom Company, Ltd..
Electromagnetic tracking is not new, but the technique is short small and accurate enough spy gear to really be used. Since only The Sixense True Motion claims to be the first to use the technique for a controller spy gear and according to them, he is more reliable and faster than other devices. spy gear On your own computer
The controller is the most important because you use it to navigate. In a virtual world More than that actually: it's like a camera in your hand