← Search

Pengfei Guo

13 accepted papers

2026

MAISI-v2: Accelerated 3D High-Resolution Medical Image Synthesis with Rectified Flow and Region-specific Contrastive Loss

AAAI 2026technical

Medical image synthesis is an important topic for both clinical and research applications. Recently, diffusion models have become a leading approach in this area. Despite their strengths, many existing methods struggle with (1) limited generalizability, only working for specific body regions or voxe

Cited by 0SourcePDFScholar
2025

Better Tokens for Better 3D: Advancing Vision-Language Modeling in 3D Medical Imaging

NeurIPS 2025poster

Recent progress in vision-language modeling for 3D medical imaging has been fueled by large-scale computed tomography (CT) corpora with paired free-text reports, stronger architectures, and powerful pretrained models. This has enabled applications such as automated report generation and text-conditi…

Cited by 0SourcecodeScholar
2025

GaussR-SLAM: Gaussian Robust SLAM in Data Loss and Interference Environments

RA-L 2025

Recent advancements in 3DGS-based explicit mapping have significantly improved SLAM performance, achieving more realistic environment reconstruction and faster processing. However, issues such as data loss caused by unstable data transmission, textureless and repetitive-texture often occur in real-w

Cited by 0SourceScholar
2025

VILA-M3: Enhancing Vision-Language Models with Medical Expert Knowledge

CVPR 2025highlight

Generalist vision language models (VLMs) have made significant strides in computer vision, but they fall short in specialized fields like healthcare, where expert knowledge is essential. Current large multimodal models like Gemini and GPT-4o are insufficient for medical tasks due to their reliance o…

Cited by 5SourcePDFScholar
2025

VISTA3D: A Unified Segmentation Foundation Model For 3D Medical Imaging

CVPR 2025poster

Foundation models for interactive segmentation in 2D natural images and videos have sparked significant interest in building 3D foundation models for medical imaging. However, the domain gaps and clinical use cases for 3D medical imaging require a dedicated model that diverges from existing 2D solut…

2022

Auto-FedRL: Federated Hyperparameter Optimization for Multi-Institutional Medical Image Segmentation

ECCV 2022poster

"Federated learning (FL) is a distributed machine learning technique that enables collaborative model training while avoiding explicit data sharing. The inherent privacy-preserving property of FL algorithms makes them especially attractive to the medical field. However, in case of heterogeneous clie…

2022

Closing the Generalization Gap of Cross-Silo Federated Medical Image Segmentation

CVPR 2022poster

Cross-silo federated learning (FL) has attracted much attention in medical imaging analysis with deep learning in recent years as it can resolve the critical issues of insufficient data, data privacy, and training efficiency. However, there can be a generalization gap between the model trained from…

Cited by 84PDFcodeScholar
2022

Resource-Adaptive Federated Learning with All-In-One Neural Composition

NeurIPS 2022accept

Conventional Federated Learning (FL) systems inherently assume a uniform processing capacity among clients for deployed models. However, diverse client hardware often leads to varying computation resources in practice. Such system heterogeneity results in an inevitable trade-off between model compl…

Cited by 50SourcePDFScholar
2021

An Improved Magnetic Spot Navigation for Replacing the Barcode Navigation in Automated Guided Vehicles

ICRA 2021poster

The barcode navigation based on QR (quick response) codes is widely employed in industrial logistics due to its accurate localization and flexible movement paths. However, the regular repair of damaged barcodes and robot speed control when approaching the barcodes are required. In this study, we pre…

Cited by 5SourceScholar
2021

Multi-Institutional Collaborations for Improving Deep Learning-Based Magnetic Resonance Image Reconstruction Using Federated Learning

CVPR 2021poster

Fast and accurate reconstruction of magnetic resonance (MR) images from under-sampled data is important in many clinical applications. In recent years, deep learning-based methods have been shown to produce superior performance on MR image reconstruction. However, these methods require large amounts…

Cited by 192PDFcodeScholar
2020

Multi-person 3D Pose Estimation in Crowded Scenes Based on Multi-View Geometry

ECCV 2020poster

Epipolar constraints are at the core of feature matching and depth estimation in current multi-person multi-camera 3D human pose estimation methods. Despite the satisfactory performance of this formulation in sparser crowd scenes, its effectiveness is frequently challenged under denser crowd circums…