In order to solve the problem of large error and slow running speed of virtual-reality registration method combining feature marker with natural texture feature

affine reprojection hybrid virtual-reality registration method is proposed.Through establishing affine coordinate system with corresponding relationship between camera

real scene and feature coordinates

and using oriented FAST and rotated BRIEF（ORB） algorithm for feature detection and construction of subsequent feature template

and use affine reprojection matrix to restore the projection position information of feature template on current image to calculate virtual-reality registration matrix.Simulation is carried out using Open GL generated cube model and real scene.Simulation results certify when the feature marker is occluded or invisible

the proposed registration method is superior in precision

robustness and rate;and real-time and robustness performance of augmented reality（AR） system are improved.