Using spherical harmonics of an inverse conformal map, we compared hippocampal
surfaces of sixteen Alzheimer (AD) and fourteen control subjects. Hippocampal surfaces …

To characterize the brain changes associated with aging, we detect brain cortex variability
through a spherical harmonic analysis that represents a 3D surface supported by the unit …

Shape analysis of neuroanatomical structures has proven useful in the study of
neuropathology and neurodevelopment. Advances in medical imaging have made it …

Shape morphometry of subcortical surfaces plays an important role in analyzing normal
developmental changes as well as in quantifying disease-related effects in the human brain …

A computational framework is presented for surface based morphometry to localize shape
changes between groups of 3D objects. It employs the spherical harmonic (SPHARM) …

All surfaces can be classified by the conformal equivalence relation. Conformal invariants,
which are shape indices that can be defined intrinsically on a surface, may be used to …

Anatomical features on cortical surfaces are usually represented by landmark curves, called
sulci/gyri curves. These landmark curves are important information for neuroscientists to …

We present an intrinsic framework for constructing sulcal shape atlases on the human
cortex. We propose the analysis of sulcal and gyral patterns by representing them by …

Detailed analysis of brain structures is essential in identifying anatomical biomarkers in
Alzheimer's disease (AD). In this paper, we develop a new radial distance model to compare …

Cortical surfaces can be modeled using the recently developed weighed spherical harmonic
(SPHARM) representation. The weighted-SPHARM representation incorporates data …