Search Results for author: Yunpeng Shi

Found 10 papers, 6 papers with code

Message Passing Least Squares: A Unified Framework for Fast and Robust Group Synchronization

no code implementations ICML 2020 Yunpeng Shi, Gilad Lerman

We propose an efficient algorithm for solving robust group synchronization given adversarially corrupted group ratios.

Robust Group Synchronization via Quadratic Programming

1 code implementation17 Jun 2022 Yunpeng Shi, Cole Wyeth, Gilad Lerman

We propose a novel quadratic programming formulation for estimating the corruption levels in group synchronization, and use these estimates to solve this problem.

Fast, Accurate and Memory-Efficient Partial Permutation Synchronization

no code implementations CVPR 2022 Shaohan Li, Yunpeng Shi, Gilad Lerman

Previous partial permutation synchronization (PPS) algorithms, which are commonly used for multi-object matching, often involve computation-intensive and memory-demanding matrix operations.

Ab-initio Contrast Estimation and Denoising of Cryo-EM Images

1 code implementation15 Feb 2022 Yunpeng Shi, Amit Singer

We show that the contrast variability can be derived from the 2-D covariance matrix and we apply the existing Covariance Wiener Filtering (CWF) framework to estimate it.

Image Denoising Image Restoration

Scalable Cluster-Consistency Statistics for Robust Multi-Object Matching

1 code implementation13 Jan 2022 Yunpeng Shi, Shaohan Li, Tyler Maunu, Gilad Lerman

We develop new statistics for robustly filtering corrupted keypoint matches in the structure from motion pipeline.

Message Passing Least Squares Framework and its Application to Rotation Synchronization

1 code implementation27 Jul 2020 Yunpeng Shi, Gilad Lerman

We propose an efficient algorithm for solving group synchronization under high levels of corruption and noise, while we focus on rotation synchronization.

Robust Group Synchronization via Cycle-Edge Message Passing

2 code implementations24 Dec 2019 Gilad Lerman, Yunpeng Shi

We then establish exact recovery and linear convergence guarantees for the proposed message passing procedure under a deterministic setting with adversarial corruption.

Exact Camera Location Recovery by Least Unsquared Deviations

no code implementations27 Sep 2017 Gilad Lerman, Yunpeng Shi, Teng Zhang

We establish exact recovery for the Least Unsquared Deviations (LUD) algorithm of Ozyesil and Singer.

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