← Search

Ang Zhang

7 accepted papers

2024

DeepBHMR: Learning Bidirectional Hybrid Mixture Models for Generalized Rigid Point Set Registration

IROS 2024

In this paper, we introduce a novel normal-assisted learning-based rigid registration approach, i.e., Deep Bi-directional Hybrid Mixture Registration (DeepBHMR). Our approach utilises helpful normal vectors explicitly in both correspondence and transformation stages and formulates the optimization o

Cited by 3Source ↗code ↗Scholar ↗
2024

OBHMR: Robust Partial-to-full Generalized Point Set Registration with Overlap-guided Bidirectional Hybrid Mixture Model

IROS 2024poster

In this paper, we introduce a novel overlap-based bidirectional point set registration approach, i.e., Overlap-guided Bidirectional Hybrid Mixture Registration (OBHMR), which incorporates geometric information (i.e., normal vectors) in both the correspondence and transformation stages and formulates…

Cited by 1Source ↗code ↗Scholar ↗
2023

Towards an Accurate Augmented-Reality-Assisted Orthopedic Surgical Robotic System Using Bidirectional Generalized Point Set Registration

IROS 2023poster

This paper presents a novel augmented reality (AR)-assisted orthopedic surgical robotic system based on Head-Mounted Display (HMD) devices. The proposed system can overlay the preoperative plans over the patient's anatomy and provide useful guidance for surgeons during interventions, with integrated…

Cited by 3Source ↗Scholar ↗
2022

Generalized 3D Rigid Point Set Registration with Anisotropic Positional Error Based on Bayesian Coherent Point Drift

ICRA 2022poster

This paper presents a novel, robust, and accurate three-dimensional (3D) rigid point set registration (PSR) method, which is achieved by generalizing the state-of-the-art (SOTA) Bayesian coherent point drift (BCPD) theory to the scenario that high-dimensional point sets(PSs) are aligned and that the…

Cited by 5Source ↗Scholar ↗
2021

Robust and Accurate Point Set Registration with Generalized Bayesian Coherent Point Drift

IROS 2021poster

Point set registration (PSR) is an essential problem in surgical navigation and image-guided surgery (IGS). It can help align the pre-operative volumetric images with the intra-operative surgical space. The performances of PSR are susceptible to noise and outliers, which are the cases in real-world…

Cited by 6Source ↗Scholar ↗
2019

Robust Non-Rigid Point Set Registration Algorithm Considering Anisotropic Uncertainties Based on Coherent Point Drift

IROS 2019poster

Non-rigid point set registration (PSR) is an outstanding and fundamental problem in fields of robotics, computer vision, medical image analysis and imageguided surgery. The aim of a non-rigid registration problem is to align together two point sets that have been deformed. We have derived and presen…

Cited by 8Source ↗Scholar ↗