3DTV 3-dtv . Television and motion pictures consist of a continuous stream of still frame pictures. Each frame is presented so fast that we can't notice any change. The phenomenon is known as persistence of vision. If there is any motion in the scene such as a wild car chase or similar action or movement, there will be a very perceptable difference between adjacent frames.
Less movement is less spectacular.
In fact, the effect totally vanishes when there is no motion. The visual sensors within our eyes are called rods and cones. The rods work best for daylight and the cones work best at night. The 3D glasses delay the arrival time of an image to one eye just long enough for the next image to appear to the other. Our brain dutifully combines the different frames into a single image which will appear real.