1. A system, comprising: a feature extractor component configured to extract a set of feature points from an epipolar plane image (EPI) and construct a feature epipolar plane image (FEPI) based upon the set of feature points, a feature point corresponds to a scene point in an image of a scene and is represented by a line in the FEPI, wherein the feature extractor component is further configured to examine a real view row of the EPI in order to extract a feature point that corresponds to a pixel of the real view row with an intensity greater than zero, where the intensity of the pixel is based upon a difference of an intensity function of the pixel to an intensity function of a neighboring pixel in the real view row; and an interpolation component configured to apply a Radon transform to the FEPI in order to determine a slope of the line.