7 Result(s)
within
**aomiao Zhang
Image Processing and Computer Vision
Imaging / Radiology
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Chapter and Conference Paper
Frequency Diffeomorphisms for Efficient Image Registration
This paper presents an efficient algorithm for large deformation diffeomorphic metric map** (LDDMM) with geodesic shooting for image registration. We introduce a novel finite dimensional Fourier representati...
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Chapter and Conference Paper
Temporal Registration in In-Utero Volumetric MRI Time Series
We present a robust method to correct for motion and deformations in in-utero volumetric MRI time series. Spatio-temporal analysis of dynamic MRI requires robust alignment across time in the presence of substa...
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Chapter and Conference Paper
Low-Dimensional Statistics of Anatomical Variability via Compact Representation of Image Deformations
Using image-based descriptors to investigate clinical hypotheses and therapeutic implications is challenging due to the notorious “curse of dimensionality” coupled with a small sample size. In this paper, we p...
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Chapter and Conference Paper
Finite-Dimensional Lie Algebras for Fast Diffeomorphic Image Registration
This paper presents a fast geodesic shooting algorithm for diffeomorphic image registration. We first introduce a novel finite-dimensional Lie algebra structure on the space of bandlimited velocity fields. We ...
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Chapter and Conference Paper
A Hierarchical Bayesian Model for Multi-Site Diffeomorphic Image Atlases
Image templates, or atlases, play a critical role in imaging studies by providing a common anatomical coordinate system for analysis of shape and function. It is now common to estimate an atlas as a deformable...
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Chapter and Conference Paper
Bayesian Principal Geodesic Analysis in Diffeomorphic Image Registration
Computing a concise representation of the anatomical variability found in large sets of images is an important first step in many statistical shape analyses. In this paper, we present a generative Bayesian app...
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Chapter and Conference Paper
Bayesian Estimation of Regularization and Atlas Building in Diffeomorphic Image Registration
This paper presents a generative Bayesian model for diffeomorphic image registration and atlas building. We develop an atlas estimation procedure that simultaneously estimates the parameters controlling the sm...
