Research On Three-dimensional Dynamic Display Technology

With the continuous development of multimedia technology, simply two-dimensional display already cannot satisfy people's needs, people want to know the real world more directly. But two-dimensional image can only show people some sides of the world, which make people can't know the whole world comprehensively. Therefore three-dimensional dynamic display will become a hotspot in the field of display in the future.In recent years, due to great improvement of computer's performance and processing capacity, three-dimensional dynamic display has made great breakthrough. Three-dimensional dynamic display is a expansion of the classical two-dimensional display, it can provide users a omni-directional tele-immersive feeling compared to two-dimensional display. Nowadays, three-dimensional dynamic display can be widely used in digital television, remote education, remote industrial control, 3d video conference system, virtual reality system, and other aspects.True three-dimensional display can show users the world itself and provide users with 360 degree angle of view without any other instruments. It can also provide most of the visual depth hint,unrestricted viewpoint, and accord to the way in which people observing the real three-dimensional world. Firstly in this paper, the system of true three-dimensional display was analyzed. Based on the analyses, three key technologies of three-dimensional dynamic display were studied.First of all, the human-computer interaction techniques facing to true three-dimensional system were studied. Then a three-dimensional light-pen interactive system applicable to real three-dimensional static display was put forward, and the feasibility of this method was proved by theory. Secondly, three-dimensional video compression technology was studied. After that, a space-time synchronous three-dimensional video coding based on panoramic view collection was presented. Then the three compression models based on different time-space orders were compared by experiment, thus the conclusion was drew. Finally, in order to guarantee the synchronicity of multiple video input and output in true three-dimensional system, the multiple video frame synchronization software was designed. And the performance of it was verified by test with frame synchronization hardware device.