A Common Lines Approach for Ab Initio Modeling of Molecules with Tetrahedral and Octahedral Symmetry [0.03%]
四面体和八面体对称分子从头算建模的公用线方法
Adi Shasha Geva,Yoel Shkolnisky
Adi Shasha Geva
A main task in cryo-electron microscopy single particle reconstruction is to find a three-dimensional model of a molecule given a set of its randomly oriented and positioned projection-images. In this work, we propose an algorithm for ab in...
A Wasserstein-Type Distance for Gaussian Mixtures on Vector Bundles with Applications to Shape Analysis [0.03%]
用于向量丛上高斯混合的距离及其在形状分析中的应用
Michael Wilson,Tom Needham,Chiwoo Park et al.
Michael Wilson et al.
This paper uses sample data to study the problem of comparing populations on finite-dimensional parallelizable Riemannian manifolds and more general trivial vector bundles. Utilizing triviality, our framework represents populations as mixtu...
Sebastian Lunz,Andreas Hauptmann,Tanja Tarvainen et al.
Sebastian Lunz et al.
We discuss the possibility of learning a data-driven explicit model correction for inverse problems and whether such a model correction can be used within a variational framework to obtain regularized reconstructions. This paper discusses t...
Toward Single Particle Reconstruction without Particle Picking: Breaking the Detection Limit [0.03%]
无颗粒挑选的单粒子重构：突破检测极限
Tamir Bendory,Nicolas Boumal,William Leeb et al.
Tamir Bendory et al.
Single-particle cryo-electron microscopy (cryo-EM) has recently joined X-ray crystallography and NMR spectroscopy as a high-resolution structural method to resolve biological macromolecules. In a cryo-EM experiment, the microscope produces ...
A Majorization-Minimization Algorithm for Neuroimage Registration [0.03%]
一种神经图像配准的Majorization-Minimization算法
Gaiting Zhou,Daniel Tward,Kenneth Lange
Gaiting Zhou
Intensity-based image registration is critical for neuroimaging tasks, such as 3D reconstruction, times-series alignment, and common coordinate mapping. The gradient-based optimization methods commonly used to solve this problem require a c...
Analysis for Full-Field Photoacoustic Tomography with Variable Sound Speed [0.03%]
声速可变的全场Photoacoustic断层融合成像分析
Linh Nguyen,Markus Haltmeier,Richard Kowar et al.
Linh Nguyen et al.
Photoacoustic tomography (PAT) is a non-invasive imaging modality that requires recovering the initial data of the wave equation from certain measurements of the solution outside the object. In the standard PAT measurement setup, the used d...
Tommy M Tang,Hemant D Tagare
Tommy M Tang
Steerable filter pairs that are near quadrature have many image processing applications. This paper proposes a new methodology for designing such filters. The key idea is to design steerable filters by minimizing a departure-from-quadrature...
Sylvain Arguillère,Michael I Miller,Laurent Younes
Sylvain Arguillère
Diffeomorphic registration using optimal control on the diffeomorphism group and on shape spaces has become widely used since the development of the large deformation diffeomorphic metric mapping (LDDMM) algorithm. More recently, a series o...
Ayelet Heimowitz,Nir Sharon,Amit Singer
Ayelet Heimowitz
We target the problem of estimating the center of mass of objects in noisy two-dimensional images. We assume that the noise dominates the image, and thus many standard approaches are vulnerable to estimation errors, e.g., the direct computa...
Simplifying Transforms for General Elastic Metrics on the Space of Plane Curves [0.03%]
关于平面曲线空间通用弹性度量的简化变换
Tom Needham,Sebastian Kurtek
Tom Needham
In the shape analysis approach to computer vision problems, one treats shapes as points in an infinite-dimensional Riemannian manifold, thereby facilitating algorithms for statistical calculations such as geodesic distance between shapes an...