Image Information Processing On Autostereoscopic Three-dimensional Display System

Vision is the most important way for humans to perceive the world,but the traditional two-dimensional display loses the depth information of the real world,which greatly affects people's viewing experience.In many industries,people need to obtain three-dimensional information in real space through display devices.In recent years,the autostereoscopic three-dimensional display device has been widely used,but the three-dimensional display technology still needs to be further improved.An important aspect of limiting the popularity of three-dimensional display products is that the film source is insufficient and the image processing mechanism is imperfect,so the image processing on the autostereoscopic three-dimensional display system is urgently requires further research and summary.The display principle of the raster-type autostereoscopic three-dimensional display system and the optical field autostereoscopic three-dimensional display system,the stereoscopic principle and the visual fatigue are described in this thesis.The binocular parallax principle is specifically analyzed.The parameter design of the slit grating in the autostereoscopic three-dimensional display system is deduced;the light field theory and the light field reconstruction mechanism of the optical field autostereoscopic three-dimensional display system are discussed.Two new autostereoscopic three-dimensional display systems are studied in this thesis.In the new autostereoscopic three-dimensional display system based on dynamic grating,by proposing a special structure dynamic grating and corresponding chip source cooperation,the theoretical maximum dense viewpoint is realized,which effectively solves the raster that watching for defects with limited view points and lossing resolution of autostereoscopic three-dimensional display product on the market.The working principle and parameter design of the system are deduced and calculated in detail.In this thesis,the principle of three-dimensional display without resolution loss under the space-time multiplexing of space source multiplexing and dynamic grating is studied.The crosstalk control method is proposed.From the perspective of image processing,the source processing ideas are designed.Participating in the construction of the system,three image structures were proposed,and then the simulation analysis and actual analysis of the display effects of different parameters of the film source applied to the system are mainly carried out from two aspects of crosstalk rate and brightness.In the panoramic autostereoscopic three-dimensional display system based on rotating scattering screen,the light field reconstruction is realized by a light field scanning mechanism,which breaks the limitation of the number of viewers and overcomes the problem of visual fatigue.The working principle of the system,the principle of light field reconstruction and the design of system parameters are studied.The principle of light field splicing and the principle of directional scattering of the microstructure of the plane deflection type rotating scattering screen are rigorously deduced.The coordination mechanism with the image in special structure playing by high-speed projector and rotating directional scattering screen is mainly analyzed.Considering all aspects of image acquisition and the coordination logic between the playback source and the 3D display system,four solutions are proposed for image acquisition and image processing of static 3D scenes and image acquisition and image processing of dynamic 3D scenes.For the above two types of new autostereoscopic three-dimensional systems,the image processing idea is realized by MATLAB's image processing code,and combined with the GUI interface to form an image processing tool with certain reusability,flexibility and universality.