Open-source code for manifold-based 3D rotation recovery of X-ray scattering patterns
Single particle 3D imaging with ultrashort X-ray laser pulses is based on collecting and combining the information content of 2D scattering patterns of an object at different orientations. Typical sample-delivery schemes leave little or no room for controlling the orientations. As such, the orientation associated with a given snapshot should be estimated after the experiment. Here we present an open-source code for the most rigorous technique having been reported in this context. Some practical issues along with proposed solutions are also discussed.
Code (0)
등록된 구현이 없습니다.
Similar Papers 제목 키워드 기반
Shonan Rotation Averaging: Global Optimality by Surfing SO(p)(n)
Shonan Rotation Averaging is a fast, simple, and elegant rotation averaging algorithm that is guaranteed to recover globally optimal solutions under mild assumptions on the measurement noise. Our method employs semidefin…
6D Rotation Representation For Unconstrained Head Pose Estimation
In this paper, we present a method for unconstrained end-to-end head pose estimation. We address the problem of ambiguous rotation labels by introducing the rotation matrix formalism for our ground truth data and propose…
Head Pose EstimationPose EstimationPose PredictionLearning to Rotate: Temporal and Semantic Rotary Encoding for Sequential Modeling
Every Transformer architecture dedicates enormous capacity to learning rich representations in semantic embedding space -- yet the rotation manifold acted upon by Rotary Positional Embeddings (RoPE) has been treated as a…
Intrinsic Green's Learning: Supervised Learning on Manifolds via Inverse PDE
We introduce Intrinsic Green's Learning (IGL), a framework that models a target function on a manifold as the solution to a linear PDE whose source term is learned from data. Rather than approximating the target directly…
Novel Sparse Recovery Algorithms for 3D Debris Localization using Rotating Point Spread Function Imagery
An optical imager that exploits off-center image rotation to encode both the lateral and depth coordinates of point sources in a single snapshot can perform 3D localization and tracking of space debris. When actively ill…