Research On Parallax Barrier Integral Imaging Dual-view 3D Display

Integral imaging dual-view 3D display technology is a relatively popular display technology that has appeared in recent years.Because of its advantages such as full parallax,continuous viewpoint,and no need for auxiliary equipment,it has been widely concerned by researchers at home and abroad.This technology is a combination of dual-view and integral imaging display technology,which simultaneously displays two different images on the same display screen to meet the needs of different observers.Although the integral imaging dual-view 3D display technology based on the parallax barrier has many advantages: the thickness of the grating is relatively thin,the price is relatively cheap,the rendered 3D image effect is more realistic,and the 2D / 3D conversion is easy to implement,but currently based on the parallax barrier integral imaging dual-view 3D display image effect of the grating still has the problems of crosstalk,small angle of view,and low resolution.Facing the above problems,this thesis mainly carry out research work on integral imaging dual-view 3D display based on parallax barrier.This thesis mainly includes the following research contents and results:(1)A method of increasing the integral imaging dual-view 3D display viewing angle and resolution by reducing the parallax barrier aperture width while maintaining the parallax barrier pitch unchanged.First,based on the principles of geometric optics,the calculation formula of the resolution and the relationship between the angle of view of a single slit and the aperture width of the slit are derived,and then the formula for calculating the angle of view is derived.In this thesis,we propose an integral imaging dual-view 3D display system,the experimental results verify the correctness of the propose method.When performing integral imaging dual-view 3D display experiments,micro-image arrays need to prepare.In this thesis,We first capture the views we need through 3d MAX software,Then encode the views with Matlab software.We propose three cases to discuss the effect of the aperture thickness of the parallax barrier on the integral imaging dual-view 3D display effect.By analyzing the 3D images view by the parallax barrier integral imaging dual-view 3D display system with different thicknesses,the corresponding viewing angle formula is obtain.By analyzing the viewing angle formula,the influence of the thickness of the slit aperture on the viewing angle and crosstalk of the integral imaging dual-view display is finally obtain.(2)We study the effects of adding different refractive index medium on the viewing angle of integral imaging dual-view 3D display.Firstly,We obtain the calculation formula ofthe angle of view based on the analysis of the light path diagram of the traditional integral imaging dual-view 3D display.Then,We analyze the optical path diagram of the integral imaging dual-view 3D display improved by adding the medium,and obtain formula corresponding to the improve viewing angle of the add medium system.We analyze the relationship between the size of the viewing angle and the refractive index of different medium.Finally,through Matlab simulation to obtain the line graph corresponding to the viewing angle under the conditions of different refractive index media.We keep the abscissa unchange,and analyze the polylines corresponding to different refractive indices.The size of the system viewing angle increases with the increase of the refractive index medium.Then,the experimental verification work was carried out through the integrated imaging dual-view3 D display system.Next,We study the effect of different thicknesses of the same medium on the viewing angle of the integral imaging dual-view 3D display.Firstly,analyze the light path diagram of light refract in glass media with different thicknesses,and it is found that the thickness of the glass medium has an optimal value,and the integral imaging dual-view 3D display works best under the optimal value.Then we verify by integral imaging dual-view 3D display experiment.