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math.NA2026
Fast rigid rotational alignment of voxelized 3-D density maps in sliced Wasserstein distance
Oscar Mickelin, Yunpeng Shi, Amit Singer +1
We develop a fast method for the rigid alignment of voxelized three-dimensional density functions over using sliced optimal transport. Our approach efficiently tra…
eess.IV2026
Image Moment Estimation for Crowded Datasets
Andy Zhang, Oscar Mickelin, Amit Singer
Single-particle cryogenic electron microscopy (cryo-EM) is an imaging technique capable of reconstructing high-resolution three-dimensional (3D) structure of biological macromolecu…
cs.CV2026
Orientation Estimation of Cryo-EM Images for Molecules with Arbitrary Symmetry by Semidefinite Programming
Yunpeng Shi, Amit Singer, Jinxin Wang +1
This paper extends the non-unique games framework introduced in Bandeira et al. (2020) to address symmetric structures. Precisely, we consider the problem \[ \begin{aligned} \under…