View Interpolation of Multiple Cameras Based on Projective Geometry

We will show methods for interpolation of viewpoint from multiple cameras based on projective geometry. Projective relationship of multiple cameras can be obtained from weak calibration information, that can easily be corrected from the multiple view images. Such projective geometry provides sufficient information to reconstruct the 3D shape of the object with scale and projective transformation ambiguity. Since such ambiguity does not affect to 2D correspondence relationship between the multiple images, we can generate new view point images from multiple cameras by interpolating viewpoint according to the 2D correspondence relationship. We will show following approaches for interpolating the view point of multiple cameras : 1) View interpolation from 3D shape reconstruction with projective ambiguity in Projective Grid Space (PGS), 2) View interpolation of actual soccer scene taken with multiple cameras based on projective geometry.