A new affine invariant representation method of 3D objects using multiple linear models

A new invariant method for representation or description [1,2,3] for 3D object is proposed using multiple linear model. This method consists of extracting vector invariant using the multiple linear parameter model applied to the 3D object in question, it's invariant against affine transformation of the object. The concerned 3D objects are transformations of 3D objects by one element of the overall transformation. The set of transformations considered in this work is the general affine group.