Hello (whom I read):
I continue with this video game and science, last month I could not write anything, hard work, but now I write a bit about what I been working headtracking. The English word comes from combining the word head = head tracking = up, which means in a practical way to track the movement of the head.
This topic has been very popular the last few months due to work Jhony shown by Lee, a researcher at the University of Carnelli Melon in the U.S., certainly have seen it, and if there is a quick video this which shows and explains (in English) which is the headtracking and developed in his laptop demo deployed on TV and used as a tracking device to control the Wii head and glasses with infrared LEDs. In addition to Mr. Lee, have already developed a host of replicas of their work using the PS3 to sony camera, web cameras with special filters (easy to do) and even a handle virtual environments, which can recognize the position and orientation head of the person are the 6 degrees of freedom (DOF).
I assure you headtracking technology using infrared devices will be in fashion next year or perhaps the same December 2008, I myself am already working on a game that allows to exploit this technology. But good as this is a science blog and video game news and not just going to explain a bit how the headtracking.
When a player or user interacts with a 3D virtual environment through a screen, the images we see displayed on the screen correspond to the image of a virtual camera is taking the virtual world, much like recording a video the real world, when notes a video recording the 2D screen in the chamber, so we look at the 2D display is the monitor or TV.
is then obtained by sensors and mathematical calculations the position of the player's head with respect to the screen, it is interpreted as part of the virtual world would be seeing if this was real. This will adjust the position and orientation of the virtual camera with respect to the virtual world to follow (tracking) the movement of the head (head), so this camera shows correspond to what the player would see if he was inside the virtual world. Technically
minimum required for these applications are attractive or interesting is the 2D tracking of the head, ie with respect to the plane fora screen or monitor, but to build really interesting things are needed 3D parasentir you zoom in or out of the world through a virtual window.
The only limitation of this technology is that if the player does not move the image seems as flat as ever, the depth is obtained through movement. To achieve the objects definitely see off the screen even without movement, it is necessary to use the stereoscope, but that is another topic to discuss.
Greetings and continue jugando.investigando.
