Patient motion impacts single photon emission computed tomography (SPECT), positron
emission tomography (PET) and x-ray computed tomography (CT) by giving rise to …

The Computational Anatomy project is the morphome-scale study of shape and form, which
we model as an orbit under diffeomorphic group action. Metric comparison calculates the …

Synchrotron X-ray computed tomography (SXCT) is increasingly being used for 3-D imaging
of material samples at micron and finer scales. The success of these techniques has …

Purpose: Four‐dimensional magnetic resonance imaging (4DMRI) is an emerging
technique in radiotherapy treatment planning for organ motion quantification. In this paper …

Surrogate-driven respiratory motion models relate the motion of the internal anatomy to
easily acquired respiratory surrogate signals, such as the motion of the skin surface. They …

Objective. This paper proposes a 4D dynamic tomography framework that allows a moving
sample to be imaged in a tomograph as well as the associated space-time kinematics to be …

We propose a new variational model for joint image reconstruction and motion estimation
applicable to spatiotemporal imaging, which is investigated along a general framework that …

Multiscale 3D characterization is widely used by materials scientists to further their
understanding of the relationships between microscopic structure and macroscopic function …

Recently, there has been considerable interest, especially for in utero imaging, in the
detection of functional connectivity in subjects whose motion cannot be controlled while in …

Variational image registration methods commonly employ a similarity metric and a
regularization term that renders the minimization problem well-posed. However, many …