Jin Zhang张晋

Ph.D. student in Mathematics, Beihang University

I work on geometric computation and 3D vision — robust point cloud registration, multi-view point-set alignment, optimal transport, and numerical algorithms for CNC interpolation. I maintain open-source research code on GitHub and write technical notes on my blog.

Email · GitHub · Blog · Contact

Research

My research interests revolve around geometric computation, 3D vision, and machine learning. Current public projects focus on robust point cloud registration, multi-view point-set alignment, optimal transport, probabilistic modeling, and numerical algorithms for curve interpolation.

Highlights

2026 — Released Sinkhorn-CPD, the official implementation of a Computer-Aided Design paper on robust point cloud registration.
2026 — Released LMM-Registration, a MATLAB implementation for robust multi-view point-set registration.
2024 — Maintained cnc_interpolation, a Python/Jupyter project for CNC interpolation, feedrate planning, look-ahead planning, and toolpath smoothing.

Publications & Projects

Sinkhorn-CPD: registration results under heavy outliers

Sinkhorn-CPD: Robust Point Cloud Registration via Unbalanced Entropic Optimal Transport

Jin Zhang, Mingyang Zhao, Bing Liu, Xin Jiang

Computer-Aided Design, 2026 · Paper · Code · Data

Official Python implementation for robust point cloud registration using unbalanced entropic optimal transport.

LMM registration: multi-view alignment results on 3D models

Robust Multi-view Registration of Point Sets with Laplacian Mixture Model

Jin Zhang, Mingyang Zhao, Xin Jiang, Dong-Ming Yan

Pattern Recognition: 6th Asian Conference, ACPR 2021, 2022 · Paper · Code

MATLAB implementation for robust registration of multiple partially overlapping 3D point sets.

CNC Interpolation Algorithms

Jin Zhang

Open-source algorithm project, 2024 · Repository

Python/Jupyter implementation of line and parametric-curve interpolation, feedrate profiles, look-ahead velocity planning, and toolpath smoothing.

Preprint / Notes

Technical notes and study records — selected notes on mathematics, algorithms, machine learning, and engineering practice.

Contact

Email: theigrams@buaa.edu.cn
GitHub: github.com/Theigrams
Blog: theigrams.github.io/zjblog