Page 177 - Intelligent Communication Systems
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I 48     INTELLIGENT COMMUNICATION SYSTEMS






























         FIGURE  11.13  Binocular  vision.

        11.10TECHNOLOGIES FOR ESTABLISHING          HYPERREALITY

        The main technologies that have to be developed to establish  HR  are VR, com-
        puter vision, and computer graphics.
            VR:  VR can give us a stereoscopic  view of an object when we wear a  special
              pair of glasses.  The right view of the object enters the right eye and the  left
              view enters the left eye through the special glasses. The right lens and the left
              lens are opened one at a time every 8 ms. The right image enters the right eye
              while the right lens is open and likewise for the left. Viewed with both eyes
              we  see a  stereoscopic  image,  because  the  right  and  left  views  are  slightly
              different.  VR enables us to handle an object in a virtual space by means of
              hand gesture. The shape and texture of the object are stored  in a computer.
              The  shape  will  change  according  to  the  hand  gestures,  and  the  texture  is
              mapped on the object and displayed in virtual space. Viewers can have a front
              or a side view of an object, depending on their  perspective.
            Computer vision: Computer vision is needed to recognize the shape and texture
              of  an object in order to reproduce  it. Usually a model  of a human face is
              used to recognize the shape of a human face.
            Computer  graphics: Using  the  shape  and texture of  an object,  the  object  is
              reproduced  to  match  the  viewer's  perspective.  Using  information  about
              hand gestures, the position and shape of the object is adjusted and displayed
              in virtual space.
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