Registration of Magnetic Resonance Tomography (MRT) Datawith a Low Frequency Adaption of Fourier-Mellin-SOFT (LF-FMS)

• Main Authors: Heiko Bülow, Andreas Birk
• Format: Article
• Language: English
• Published: MDPI AG 2021-04-01
• Series: Sensors
• Subjects: volume registration; magnetic resonance imaging; X-ray imaging and computed tomography; motion compensation and analysis; pattern recognition and classification; integration of multiscale information
• Online Access: https://www.mdpi.com/1424-8220/21/8/2581

Fourier-Mellin-SOFT (FMS) is a rigid 3D registration method, which allows the robust registration of 3 degrees-of-freedom (dof) rotation, 1-dof scale, and 3-dof translation between scans on discrete grids. FMS is based on a spectral decomposition of these 7-dof. This complete spectral representation of the input data enables an adaption to certain frequency ranges. This special property is used here to focus on relevant mutual 3D information between bone structures with a Low Frequency adaptation of FMS (LF-FMS), that is, it is utilized for matching and concurrently determining corresponding transformation parameters. This process is applied on a set of Magnetic Resonance Tomography (MRT) data representing the hand region, in particular the carpal bone area, in a sequence of different hand positions. This data set is available for different probands, which allows a comparison of resulting parameter plots and furthermore matching in between bone structures.