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Self-supervised monocular depth estimation is a significant task for low-cost and efficient 3D scene perception and measurement in endoscopy. However, the variety of illumination conditions and scene features is still the primary challenges…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Liangjing Shao , Chenkang Du , Benshuang Chen , Xueli Liu , Xinrong Chen

Estimating precise metric depth and scene reconstruction from monocular endoscopy is a fundamental task for surgical navigation in robotic surgery. However, traditional stereo matching adopts binocular images to perceive the depth…

Robotics · Computer Science 2022-11-29 Ruofeng Wei , Bin Li , Hangjie Mo , Fangxun Zhong , Yonghao Long , Qi Dou , Yun-Hui Liu , Dong Sun

In this letter, we present a neural field-based real-time monocular mapping framework for accurate and dense Simultaneous Localization and Mapping (SLAM). Recent neural mapping frameworks show promising results, but rely on RGB-D or pose…

Robotics · Computer Science 2023-12-18 Wei Zhang , Tiecheng Sun , Sen Wang , Qing Cheng , Norbert Haala

Accurate and efficient dense metric depth estimation is crucial for 3D visual perception in robotics and XR. In this paper, we develop a monocular visual-inertial motion and depth (VIMD) learning framework to estimate dense metric depth by…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Saimouli Katragadda , Guoquan Huang

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 capsule endoscopies within the gastrointestinal tract cause…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Long Bai , Beilei Cui , Liangyu Wang , Yanheng Li , Shilong Yao , Sishen Yuan , Yanan Wu , Yang Zhang , Max Q. -H. Meng , Zhen Li , Weiping Ding , Hongliang Ren

Although deep neural networks have been widely applied to computer vision problems, extending them into multiview depth estimation is non-trivial. In this paper, we present MVDepthNet, a convolutional network to solve the depth estimation…

Robotics · Computer Science 2018-07-24 Kaixuan Wang , Shaojie Shen

EasyVis2 is a system designed to provide hands-free, real-time 3D visualization for laparoscopic surgery. It incorporates a surgical trocar equipped with an array of micro-cameras, which can be inserted into the body cavity to offer an…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Yung-Hong Sun , Gefei Shen , Jiangang Chen , Jayer Fernandes , Amber L. Shada , Charles P. Heise , Hongrui Jiang , Yu Hen Hu

Ingestible wireless capsule endoscopy is an emerging minimally invasive diagnostic technology for inspection of the GI tract and diagnosis of a wide range of diseases and pathologies. Medical device companies and many research groups have…

Computer Vision and Pattern Recognition · Computer Science 2017-11-21 Mehmet Turan , Yasin Almalioglu , Helder Araujo , Ender Konukoglu , Metin Sitti

Monocular depth estimation in bronchoscopy can significantly improve real-time navigation accuracy and enhance the safety of interventions in complex, branching airways. Recent advances in depth foundation models have shown promise for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Francis Xiatian Zhang , Emile Mackute , Mohammadreza Kasaei , Kevin Dhaliwal , Robert Thomson , Mohsen Khadem

Localizing the bronchoscope in real time is essential for ensuring intervention quality. However, most existing methods struggle to balance between speed and generalization. To address these challenges, we present BronchoTrack, an…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Qingyao Tian , Huai Liao , Xinyan Huang , Bingyu Yang , Jinlin Wu , Jian Chen , Lujie Li , Hongbin Liu

Depth estimation plays a crucial role in various tasks within endoscopic surgery, including navigation, surface reconstruction, and augmented reality visualization. Despite the significant achievements of foundation models in vision tasks,…

Image and Video Processing · Electrical Eng. & Systems 2024-05-15 Beilei Cui , Mobarakol Islam , Long Bai , An Wang , Hongliang Ren

Bird's-Eye-View (BEV) representation offers a metric-scaled planar workspace, facilitating the simplification of 6-DoF ego-motion to a more robust 3-DoF model for monocular visual odometry (MVO) in intelligent transportation systems.…

Robotics · Computer Science 2025-09-19 Yufei Wei , Wangtao Lu , Sha Lu , Chenxiao Hu , Fuzhang Han , Rong Xiong , Yue Wang

Real-time 3D navigation during minimally invasive procedures is an essential yet challenging task, especially when considerable tissue motion is involved. To balance image acquisition speed and resolution, only 2D images or low-resolution…

Computer Vision and Pattern Recognition · Computer Science 2018-01-03 Xiao-Yun Zhou , Guang-Zhong Yang , Su-Lin Lee

There has been extensive research on visual localization and odometry for autonomous robots and virtual reality during the past decades. Traditionally, this problem has been solved with the help of expensive sensors, such as lidars.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Ali Samadzadeh , Ahmad Nickabadi

We present a deep neural network (DNN) that uses both sensor data (gyroscope) and image content (optical flow) to stabilize videos through unsupervised learning. The network fuses optical flow with real/virtual camera pose histories into a…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Zhenmei Shi , Fuhao Shi , Wei-Sheng Lai , Chia-Kai Liang , Yingyu Liang

Monocular 6-DoF pose estimation plays an important role in multiple spacecraft missions. Most existing pose estimation approaches rely on single images with static keypoint localisation, failing to exploit valuable temporal information…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Jose Sosa , Dan Pineau , Arunkumar Rathinam , Abdelrahman Shabayek , Djamila Aouada

We present a novel monocular localization framework by jointly training deep learning-based depth prediction and Bayesian filtering-based pose reasoning. The proposed cross-modal framework significantly outperforms deep learning-only…

Computer Vision and Pattern Recognition · Computer Science 2022-10-28 Priyesh Shukla , Sureshkumar S. , Alex C. Stutts , Sathya Ravi , Theja Tulabandhula , Amit R. Trivedi

In this work, we propose a novel deep online correction (DOC) framework for monocular visual odometry. The whole pipeline has two stages: First, depth maps and initial poses are obtained from convolutional neural networks (CNNs) trained in…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Jiaxin Zhang , Wei Sui , Xinggang Wang , Wenming Meng , Hongmei Zhu , Qian Zhang

Accurate real-time catheter segmentation is an important pre-requisite for robot-assisted endovascular intervention. Most of the existing learning-based methods for catheter segmentation and tracking are only trained on small-scale datasets…

Image and Video Processing · Electrical Eng. & Systems 2020-06-17 Anh Nguyen , Dennis Kundrat , Giulio Dagnino , Wenqiang Chi , Mohamed E. M. K. Abdelaziz , Yao Guo , YingLiang Ma , Trevor M. Y. Kwok , Celia Riga , Guang-Zhong Yang

Accurate segmentation of vestibular schwannoma (VS) on Magnetic Resonance Imaging (MRI) is essential for patient management but often requires time-intensive manual annotations by experts. While recent advances in deep learning (DL) have…