papers

Publications (20)

cs.CV2025

Advancing Dense Endoscopic Reconstruction with Gaussian Splatting-driven Surface Normal-aware Tracking and Mapping

Yiming Huang, Beilei Cui, Long Bai +5

Simultaneous Localization and Mapping (SLAM) is essential for precise surgical interventions and robotic tasks in minimally invasive procedures. While recent advancements in 3D Gau…

cs.CV2025

Endo-4DGX: Robust Endoscopic Scene Reconstruction and Illumination Correction with Gaussian Splatting

Yiming Huang, Long Bai, Beilei Cui +7

Accurate reconstruction of soft tissue is crucial for advancing automation in image-guided robotic surgery. The recent 3D Gaussian Splatting (3DGS) techniques and their variants, 4…

cs.CV2026

EndoDDC: Learning Sparse to Dense Reconstruction for Endoscopic Robotic Navigation via Diffusion Depth Completion

Yinheng Lin, Yiming Huang, Beilei Cui +4

Accurate depth estimation plays a critical role in the navigation of endoscopic surgical robots, forming the foundation for 3D reconstruction and safe instrument guidance. Fine-tun…

cs.CV2023

Rectifying Noisy Labels with Sequential Prior: Multi-Scale Temporal Feature Affinity Learning for Robust Video Segmentation

Beilei Cui, Minqing Zhang, Mengya Xu +3

Noisy label problems are inevitably in existence within medical image segmentation causing severe performance degradation. Previous segmentation methods for noisy label problems on…

cs.CV2026

Leveling3D: Leveling Up 3D Reconstruction with Feed-Forward 3D Gaussian Splatting and Geometry-Aware Generation

Yiming Huang, Baixiang Huang, Beilei Cui +3

Feed-forward 3D reconstruction has revolutionized 3D vision, providing a powerful baseline for downstream tasks such as novel-view synthesis with 3D Gaussian Splatting. Previous wo…

cs.CV2024

Endo-4DGS: Endoscopic Monocular Scene Reconstruction with 4D Gaussian Splatting

Yiming Huang, Beilei Cui, Long Bai +4

In the realm of robot-assisted minimally invasive surgery, dynamic scene reconstruction can significantly enhance downstream tasks and improve surgical outcomes. Neural Radiance Fi…

cs.CV2024

Head Pose Estimation and 3D Neural Surface Reconstruction via Monocular Camera in situ for Navigation and Safe Insertion into Natural Openings

Ruijie Tang, Beilei Cui, Hongliang Ren

As the significance of simulation in medical care and intervention continues to grow, it is anticipated that a simplified and low-cost platform can be set up to execute personalize…

cs.CV2025

Learning to Efficiently Adapt Foundation Models for Self-Supervised Endoscopic 3D Scene Reconstruction from Any Cameras

Beilei Cui, Long Bai, Mobarakol Islam +8

Accurate 3D scene reconstruction is essential for numerous medical tasks. Given the challenges in obtaining ground truth data, there has been an increasing focus on self-supervised…

eess.IV2024

EndoDAC: Efficient Adapting Foundation Model for Self-Supervised Depth Estimation from Any Endoscopic Camera

Beilei Cui, Mobarakol Islam, Long Bai +2

Depth estimation plays a crucial role in various tasks within endoscopic surgery, including navigation, surface reconstruction, and augmented reality visualization. Despite the sig…

cs.CV2025

Multimodal Graph Representation Learning for Robust Surgical Workflow Recognition with Adversarial Feature Disentanglement

Long Bai, Boyi Ma, Ruohan Wang +8

Surgical workflow recognition is vital for automating tasks, supporting decision-making, and training novice surgeons, ultimately improving patient safety and standardizing procedu…

cs.CV2024

Benchmarking Robustness of Endoscopic Depth Estimation with Synthetically Corrupted Data

An Wang, Haochen Yin, Beilei Cui +2

Accurate depth perception is crucial for patient outcomes in endoscopic surgery, yet it is compromised by image distortions common in surgical settings. To tackle this issue, our s…

cs.CV2024

V-SfMLearner: Learning Monocular Depth and Ego-motion for Multimodal Wireless Capsule Endoscopy

Long Bai, Beilei Cui, Liangyu Wang +9

Deep learning can predict depth maps and capsule ego-motion from capsule endoscopy videos, aiding in 3D scene reconstruction and lesion localization. However, the collisions of the…

cs.CV2026

CoGE: Sim-to-Real Online Geometric Estimation for Monocular Colonoscopy

Liangjing Shao, Beilei Cui, Hongliang Ren

Geometric estimation including depth estimation and scene reconstruction is a crucial technique for colonoscopy which can provide surgeons with 3D spatial perception and navigation…

cs.CV2026

Parameter-Efficient Adaptation of SAM3 for Prompt-Driven Surgical Concept Segmentation

Changjing Liu, Yiming Huang, Beilei Cui +5

Efficient surgical segmentation empowers clinical diagnosis, intraoperative monitoring, and downstream robotic pipelines for reconstruction and simulation. Although prompt-driven f…

cs.RO2024

Registering Neural 4D Gaussians for Endoscopic Surgery

Yiming Huang, Beilei Cui, Ikemura Kei +3

The recent advance in neural rendering has enabled the ability to reconstruct high-quality 4D scenes using neural networks. Although 4D neural reconstruction is popular, registrati…

cs.CV2026

Boosting Generalizable Depth Estimation in Endoscopy by Mixture of Lightweight Experts and Intrinsic Image Alignment

Liangjing Shao, Beilei Cui, Yiming Huang +2

Depth estimation is a significant task for 3D perception in endoscopic surgeries. However, illumination interference and feature diversity in various endoscopic scenes are still ch…

eess.IV2025

SurgTPGS: Semantic 3D Surgical Scene Understanding with Text Promptable Gaussian Splatting

Yiming Huang, Long Bai, Beilei Cui +6

In contemporary surgical research and practice, accurately comprehending 3D surgical scenes with text-promptable capabilities is particularly crucial for surgical planning and real…

cs.CV2026

EndoGSim: Physics-Aware 4D Dynamic Endoscopic Scene Simulations via MLLM-Guided Gaussian Splatting

Changjing Liu, Yiming Huang, Long Bai +2

In robot-assisted minimally invasive surgery, high-fidelity dynamic endoscopic scene reconstruction and simulation are crucial to enhancing downstream tasks and advancing surgical…

cs.CV2026

TR2M: Transferring Monocular Relative Depth to Metric Depth with Language Descriptions and Dual-Level Scale-Oriented Contrast

Beilei Cui, Yiming Huang, Long Bai +1

This work presents a generalizable framework to transfer relative depth to metric depth. Current monocular depth estimation methods are mainly divided into metric depth estimation…

cs.CV2024

Surgical-DINO: Adapter Learning of Foundation Models for Depth Estimation in Endoscopic Surgery

Beilei Cui, Mobarakol Islam, Long Bai +1

Purpose: Depth estimation in robotic surgery is vital in 3D reconstruction, surgical navigation and augmented reality visualization. Although the foundation model exhibits outstand…