Symplectomorphic registration with phase space regularization by entropy spectrum pathways.

ABSTRACT:

Purpose

The ability to register image data to a common coordinate system is a critical feature of virtually all imaging studies. However, in spite of the abundance of literature on the subject and the existence of several variants of registration algorithms, their practical utility remains problematic, as commonly acknowledged even by developers of these methods.

Methods

A new registration method is presented that utilizes a Hamiltonian formalism and constructs registration as a sequence of symplectomorphic maps in conjunction with a novel phase space regularization. For validation of the framework a panel of deformations expressed in analytical form is developed that includes deformations based on known physical processes in MRI and reproduces various distortions and artifa

SUBMITTER: Galinsky VL 

PROVIDER: S-EPMC7098261 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature