Hence, the theoretical problem arises concerning how to discretize the continuous theory while either preserving or well approximating the desirable theoretical properties that lead to the choice of the Gaussian kernel (see the article on scale-space axioms). This article describes basic approaches for this that have been developed in the literature.
Hence, a theoretical problem arises concerning how to discretize the continuous theory while either preserving or accurately approximating the desirable theoretical properties that lead to the choice of the Gaussian kernel (similar to scale-space axioms). This article describes basic approaches for this that have been developed in the literature.