Interactive segmentation with curve-based template deformation for spatiotemporal computed tomography of swallowing motion.

ABSTRACT: Repeating X-ray computed tomography (CT) measurements over a short period of time allows for obtaining a spatiotemporal four-dimensional (4D) volume image. This study presents an interactive method for segmenting a 4DCT image by fitting a template model to a target organ. The template consists of a three-dimensional (3D) mesh model and free-form-deformation (FFD) cage enclosing the mesh. The user deforms the template by placing multiple curve constraints that specify the boundary shape of the template in 3D space. We also present curve constraints shared over all time frames and interpolated along the time axis to facilitate efficient curve specification. Our method formulates the template deformation using the FFD cage modification, allowing the user to switch between our curve-based meth

SUBMITTER: Kimura Y 

PROVIDER: S-EPMC11493247 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature