One-step Pseudo Color Digital Stereogram

Since the end of 20th century, with the development of digital technology, holography has entered a new stage of development. In the field of display holography, along with the development of the computer control, image processing, spatial light modulator technology, it is possible for shooting large-scale synthetic holograms automatically. Digital synthetic holograms arises at the historic moment. How to use a digital and automatic way to make large-scale, large-view zone, full-parallax, true-color digital synthetic holograms become a hot issue of the world in the field of holographic displaying.In the basis of many experiments and referring many domestic and foreign technology, this thesis puts forward an one-step laser writing method for shooting pseudo color digital stereogram, which is a kind of one-step transmission hologram with full-color. It mainly consists of three steps: 1, Sampling in a 3D scene; 2, Image transformation, including parallax information processing and color coding; 3, Holographic shooting and development.The main job of the thesis: firstly, design the optical path for laser writing one-step pseudo color digital stereogram; secondly, design the image transformation program, which can not only realize the synthesis of parallax information, but can also achieve color coding; thirdly, make a holographic optical element according to the need of the experiment.The main content of this article: The first part, preface, introduces the background of the development of synthesis holographic technology. The second part introduces the basic principle of"One-step Pseudo Color Digital Stereogram"and the image transformaion method. The third part introduces the principle of color coding method. And a special holographic optical element for this experiment is inroduced how to make here. The fourth part, by an experiment, explains how to make a pseudo color digital stereogram by one-step laser writing method. The fifth part is the results of the experiment, and the discussion of the further work.