| With the advancement of science and technology and the advent of the 5G era,people are no longer satisfied with the traditional two-dimensional display,and began to pursue the spatial three-dimensional display effect containing more information.Initially,3D display technology is needed to rely on wearing the corresponding equipment to be able to present a three-dimensional effect.This inconvenience in the use process gave birth to naked-eye 3D technology.Benefiting from the convenience of use,naked-eye 3D display devices have developed rapidly in various industries,but such technologies are still need to be further improved.The tetrahedral pyramid-type 3D stereoscopic display architecture uses Peper Ghost to realize the three-dimensional rendering in four directions of the tetrahedron,but at the viewing angle of the splicing edges of the four faces on the side of the structure or at an angle other than 45°,there is a defect that a planar image reflected on two adjacent media is seen at the same time.Aiming at the problems mentioned above,the thesis combines the projection method in geodesy with the micro-element method for the first time,and proposes a full-angle 3D projection of continuous surface reflections based on the back pursuit method and the conic projection method,retaining the complete 3D information of the restored object To explore the three-dimensional projection technology that realizes"seamless connection" in multiple directions and even in all directions,optimize the stereoscopic image of the restored object,and further expand the application range of this technology.When the paper first explored the back pursuit method,the three-dimensional image that has been seen is used to push back the plane image projected by the projection screen,and then the images at different sight lines are stitched.Although this solution cannot obtain the ideal imaging effect in the actual implementation process,it provides a new idea for the subsequent conic projection method,which combined with the micro-element idea,the full-circumference reflection based on continuous surface reflection is realized by Lambert conical projection.The main tasks as follows:1.The paper breaks through the tetrahedral pyramid structure of the existing three-dimensional projection technology,and proposes a cone 3D display architecture based on the theory of micro-element.After a thorough understanding of the imaging principles of the pyramid-shaped architecture and the deficiencies in practical applications,based on the basic principles of real images combined with the specular reflection of existing 3D projection technologies,the paper comprehensively considers the impact of the actual parameter settings such as center distance,azimuth,shape distortion and chromatic aberration on the input image of the projection to build a cone 3D display architecture.2.Using Lambert's orthographic conic projection method and triangulation,the derivation and simulation of full-angle 3D projection of quasi-continuous surfaces are realized.In order to achieve this goal,the existing projection principles and methods of map projection(Lambert's cone projection)in geodesy are used to project through a hemisphere in the middle and then combine with the limit idea of microelements to achieve the goal Reflection is extended to curved reflection,which is a conic projection of 360 0 continuous surface reflection.Finally,the triangulation is used to restore the spatial position relationship between the original point and the point of the object,which optimizes the entire projection effect and further enhances the stereo effect after cone projection.This thesis points out a new research direction for full-angle stereo projection technology,and completes the derivation and simulation of the entire stereo projection process.Although the processing results are still distorted so far,the possibility of further exploration is reserved for subsequent scientific research in this area. |
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