¡@
¡@
¡@
¡@
¡@
¡@
¡@
¡@
¡@
¡@
¡@
| ¡@ |
          |
¡@ |
|
Our 2 Eyes , 2 Separate Camera and 2 Windows for vision Human beings generally come equipped with two eyes and one head. Humans have two eyes located side-by-side in the front of their heads, each eye takes a view of the same area from a slightly different angle. Each eye captures its own view. 2 separate images are sent on to the brain for processing. When the two images arrive simultaneously in the back of the brain, they are united into one picture. The mind combines the two images by matching up the similarities and adding in the small differences. The combined image is more than the sum of its parts, and become a three-dimensional Stereo data that create preception needed. Greek word "Stereos" "Stereo" comes from the Greek word "Stereos" which means firm or solid. With 3D stereo vision you see an object as solid in three spatial dimensions--width, height and depth; or x, y and z. The added perception of the depth dimension makes stereo vision rich and special. With 3D Stereo vision, or Stereoscopic vision, we can see how objects are in relation to one self with much greater precision, especially when those objects are moving toward or away from us, providing a perception of depth cue. Converging of Left and Right cameras Converging will introduce the crossing view paths. 'Negative screen parallax' will make whose objects which are in front of the converging, to have the result of sticking out of the screen. When using converging cameras, the depth could only be limited. Because the cameras' view paths are crossed. This far outward turning of the eyes caused divergence. Object with heavy divergence at far background would creates discomfort.   Distortion created by converging cameras is called Keystoning. The cameras produced skewing in opposite ways, left- and right eye images result with vertical parallax.  ¡@
|
¡@