Research On Three-dimensional Dynamic Image Display Based On Linear Array

The research of three-dimensional(3D)display has received more and more extensive attention in various fields with the development of science and technology.Stereoscopic display can improve presence and immersion of the scene by raising the viewer’s 3D space perception.True 3D display,which is one of 3D display technologies,can completely activate the stereoscopic characteristics of human eyes,and reproduce the real vision of natural scenes as much as possible,its natural visual perception can reduce visual fatigue caused by long-time viewing.Thus it can be seen that the true 3D display is a more promising and potential technology.There are three programs of 3D display currently,they are integrated imaging 3D display,volumetric 3D display and holographic 3D display.After the research and analysis of the integrated imaging technology and the volumetric 3D display technology in the true 3D display,a 3D dynamic image display and information hiding method based on linear array is proposed and implemented,which combines the principle of integrated imaging technology and the construction method of the volumetric 3D display technology.First,select the light source and display media,and set up the experiment system;secondly,adjust the focal length of the projector,determine the focal length and complete the calibration of the projector;then,calibrate the depth of display area,and record the coordinates of mapping relations;after that,design the construction of linear array and generate objects;finally,modify the mapping relations once again and complete the display of 3D dynamic images.The most critical two parts,respectively,is the display system calibration and the design of the construction of linear array.This paper proposes a system calibration and correction methods,which combines camera,projector,PC and display space.This method not only can effectively collect the mapping relations between 3D space and 2D graphics,but also can improve the stability and compatibility of the display system.This paper proposes a method to design the linear array in combination with the optical path of the projector and the visual requirements of viewers.The effects of different constructions of linear array on human visual perception are verified by simulation and experiment,among which the trapezoidal array has high matching accuracy,and can be comparable to the square array in visual effects.This dynamic image display and information hiding method,which is based on linear array,can be widely used in outdoor performances,video advertising,space games and other business or life areas due to its low cost,stability,real visual effects and applicability.