Optical Field Imaging 3D Technology Based On Microlens Array

Recently,VR technology broke out,and the widely attentions have been paid on 3D imaging and display.Other display technologies keep the distance between the eye's focus and the screen constant,which resulting in depth of field,dizziness,nausea and other uneases.A new display method is needed to generate real depth of field information,to keep visual balance and reduce the above uncomfortable symptoms.There are two principles for the light field imaging(and light field imaging).This article mainly introduces microlens arrays.The microlens array does not require additional eyeglasses,but also has a continuous viewpoint and complete parallax.At present,the study of light field imaging of microlens arrays in China is still in its infancy.There are no practical products.This article focuses on the imaging of light field cameras and the in-depth extraction of 3D information.The work contents and innovations are as follows:First,Based on the theory of light field imaging based on microlens array,the principle and imaging process of first-generation optical field camera and second generation optical field camera are studied,and MATLAB was used to simulate the focusing light field camera,according to the light The field theory studies the focusing principle of common imaging systems in depth.Finally,according to the characteristics of two generations of cameras,the refocusing of their imaging is analyzed.The first generation second-generation light field cameras and their differences are introduced in detail.Secondly,according to the overall imaging principle,the full-resolution rendering processing of the second-generation light field camera(focusing all-optical camera)and the post-processing of the light field information are related to the research on the digital video focus and digital zoom,respectively.At the end of this chapter,improvements were made to the problem of low resolution of second-generation light-field cameras.Third,the innovation of this paper proposes a method based on computational integrated imaging target extraction,a three-dimensional object depth extraction method,which solves the problem that the algorithm is too complex in the extraction process of 3D image depth information.The three-dimensional object depth extraction method calculates the similarity of adjacent pixels in each element image in a two-dimensional planar image to obtain the depth of the pixel.This extraction method is a fast and accurate 3D object depth extraction method,considering synthetic imaging and synthetic aperture integral imaging.By assuming that the 3D object is a surface composed of many aspects,a depth extraction is developed based on the Patch-Match algorithm.Mathematical framework.The 3D information extraction in the target object is achieved.Fourth,in the last chapter of this article,the traditional 3D display technologies and their advantages and disadvantages are introduced.The advantages of light field imaging in 3D imaging are analyzed.The application of light field display technology in VR is analyzed,and the specific magic is analyzed.Leap's commercial application AR equipment,according to the magic leap patent,restores the light field displayed on the principle of the device.