VE Cards

Currently, sophisticated three-dimensional virtual reality interface equipment is very expensive. However, the price of virtual reality interface technology is likely to decrease and access to sophisticated three-dimensional VR will increase. Virtual Environment (VE) cards could become as common in tomorrow's personal computing systems as video cards are in today's systems. To be responsive, a world should react to human behavior with a sufficiently great level of appropriateness and speed to instill a person engaged a sense similar to communication with actual things. With today's science and hardware, this usually involves achieving a specific level of computer reaction to the location, movement, and angle of the participating human's head or eyes and that of a hand. Computer reaction to the position, angle, and patterning of the rest of the participating human's body is vital. In any event, this is not currently included in the minimal specification for Virtual Reality (VR). This also will change as technology advances. There is unique discussion at virtual reality and telepresence of related VR material.

Computer interpretation of hand and facial gestures currently happens and will probably lead the formation of optical human to computer interaction. Gesture interpretation is the result of work on computer processing and three-dimensional modeling of the structure and motion by the one's hands and face. This combines conceptual objects from anatomy, kinesiology, and human vision. Human body language can be recorded through a computer via a mechanical glove or invia the optical interpretation of video images. There is considerable potential for further formation of optical measurement of lip, facial, eye, head, hand, and body motion. Several challenges remain. Computers cannot now monitor elements that are obscured from the line of vision by other objects, poorly lit, or too challenging. Future formation of methods to translate optical images into virtual 3D objects should open the door for much greater accuracy in optical measurement of human motion. Also virtual reality applications in the practice of medicine has more info.

One method to have one's eyes see different images on a screen far away is to have eyes view the screen with different polarized filters. This is the way "3D glasses" work in theaters. The communication of the polarized filters with colors or other features of the picture on the screen shifts the images, resulting in different perspectives and detail sensation, but this method has significant limitations. Another method to present one's eyes with different pictures is to use "shutter glasses." Shutter glasses alternatively show the picture to one eye and then to the other, in synchronization with pictures from two different perspectives displayed in order on a single screen. When the alternating pictures are shown in sufficiently quick succession, then the brain puts together the two pictures into one three-dimensional image. Most Head Mounted Displays (head mounted displays) used in virtual reality are some type of head device that includes: some type of shutter glasses; a somewhat close high-clarity screen with an image that spans more than 60 degrees of the scope of vision and tracks head motion; and a mechanical, optical, magnetic or other mechanism to track head motion. texture mapping and ray tracing in virtual reality environments provides additional information on this topic.

We all connect with computing systems frequently. Each time a cellular phone displays an e-mail or a person slides a mouse, they interact to some extent with a virtual world. Most of these connections are pretty small in comparison with the overall environment and are not labeled virtual reality. What proportion of human attention should be actively involved by the interaction with computer-based objects for that interaction to be called Virtual Reality? As a source for unique material, see defining pure virtual reality .