14-02-2010, 10:07 PM
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A 3D television is a television that employs techniques of 3D presentation, like stereoscopic capture, multi-view capture, or 2D plus depth, and a 3D displayâ€a special viewing device to project a television program into a realistic three-dimensional field. . The 3D-video camera that will be developed is based on Zcam„¢. itâ„¢s operation is based on generating a "light wall" moving along the field of view Stereoscopy is most widely accepted method for capturing and delivering 3D video. It involves capturing stereo pairs in a two-view setup, with cameras mounted side by side, separated by the same distance as between a person's pupils. Here the procedure are
(a) Light wall moving from camera to scene
(b) Imprinted light wall back to camera
© Truncated light wall containing depth information from the source.
ADVANTAGES
. shows high resolution of 1024 X 768 pixels of stereoscopic color images for multiple viewpoints without special glasses.
¢ is completely scalable and backward compatible in the number of acquired, transmitted and displayed views.
. The large number of views (16) , and the large physical dimension ( 6â„¢X4â„¢ ) of the display lead to a very immersive 3D experience.
. The projector based 3D display has a native resolution of 12 million pixels which is greater than the largest currently available high resolution flat-panel screen of IBM T221 LCD with 9 million pixels.
¢ The overall delay in the system from the acquisition to the display is less than one second.
DISADVANTAGES
¢ The graphics cards and projectors are not synchronized which lead to and increased motion blur for fast movements in the scene.
¢ The Rear projection system has less quality compared to front projection system.
¢ Eye strain,headache and other unpleasant side effects.
FUTURE WORK
¢ Most of the key ideas for the 3D TV system presented in this paper have been known for decades.
¢ There is still much that we can do to improve the quality, sharpness, optical char. etc of the 3D display.
¢ They have to develope high-dynamic range cameras commercially.
¢ True high-dynamic range displays have also been developed
