Light Field Stitching Based on Mesh Deformation

Light field is a potential technology which can help us get richer information from the world. However, light field is limited by the field of view (FOV). Stitching multiple light fields is a solution to raising FOV of light field. In this paper we present a method that can keep the angular consistency when stitching the light fields. We first use the traditional two-dimensionall (2D) image stitching method to stitch the central sub-aperture images (SAI). We can obtain the disparity maps of the light fields, and get the disparities on two directions. Then the disparity maps can help us get a group of control points to guide the mesh grids in the SAIs to deform and warp them to a new panorama. We evaluate the stitched light field by its epipolar plane image (EPI) and the ability of refocusing. The experimental results show that our method can stitch 4D light field effectively and keep the consistency of spatial and angular domain.