(a) Geometric representation of a 2D system of linear equations with two solutions. (b) The dual representation of the same system of linear equations in parameter space. In absence of an exact definition for a data structure, the underlying structures of these two figures can be visually interpreted in many different ways. (c) and (d) An interpretation of the above figures visualized based on linear models and added Gaussian noise. (e) Intersections of all the lines shown in (a) and (c) where blue and red markers represent the intersections of blue and red lines with themselves. (f) Histogram of putative solutions in the Hough space.
