Research On Panoramic Stereoscopic Imaging Based On Mirror Pyramids

Many of the commercially available panoramic cameras with non-zero disparity do not allow seamless splicing of objects that are close to the camera.Even if there are many mainstream video stitching algorithms to solve this problem,but also bring additional computing overhead,so this article attempts to design the reflex pyramid structure to eliminate or reduce the parallax to get a better stitching effect.According to the problems existing in the stitching process,the main contents of this paper are as follows:(1)design of multi-mirror reflective three-dimensional panoramic cameraThe panorama camera consists of 13 cameras,of which 12 cameras take the horizontal scene and one camera shoots the scene above.Each 6 cameras with a camera shooting above form a panorama through the stitching process.Adjacent to the six cameras and the shared camera to form another panorama,two panorama through the virtual reality headset device were left and right eyes to get three-dimensional effect.(2)non-overlapping area calibration methodIn solving the calibration problem between camera groups,the general approach is to assume that the camera has overlapping areas to estimate the camera parameters so that the points in the overlapping area can be used to register the relative positional relationship of the camera [5,6].However,due to the structure of the specular panoramic camera,each camera has a very narrow overlapping area.This method needs an intermediate camera to solve the problem of camera calibration in non-overlapping areas or small overlapping areas,greatly increasing the possibility of experiment cost and cumulative error.In this paper,we propose a method to solve the calibration problem of non-overlapping region camera based on specular reflection imaging system.The method of calibration is proposed.The calibration method can be used to calibrate the virtual camera parameter.(3)Projection transformationThe panoramic projection output assumes that the panorama of the spherical view is projected as a flat view,so that it can be viewed on a regular device or printed on a printer.In this paper,the rectangular projection model is used to project the scenes taken by each camera to the panoramic coordinate system,and then to the image coordinate system for the first view of the user.