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Monocular visual odometry (VO) suffers severely from error accumulation during frame-to-frame pose estimation. In this paper, we present a self-supervised learning method for VO with special consideration for consistency over longer…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Yuliang Zou , Pan Ji , Quoc-Huy Tran , Jia-Bin Huang , Manmohan Chandraker

Technology has made navigation in 3D real time possible and this has made possible what seemed impossible. This paper explores the aspect of deep visual odometry methods for mobile robots. Visual odometry has been instrumental in making…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Jahanzaib Shabbir , Thomas Kruezer

Vision-based control provides a significant potential for the end-point positioning of continuum robots under physical sensing limitations. Traditional visual servoing requires feature extraction and tracking followed by full or partial…

Effective retinal vessel segmentation requires a sophisticated integration of global contextual awareness and local vessel continuity. To address this challenge, we propose the Graph Capsule Convolution Network (GCC-UNet), which merges…

Image and Video Processing · Electrical Eng. & Systems 2024-09-19 Xinxu Wei , Xi Lin , Haiyun Liu , Shixuan Zhao , Yongjie Li

We present a visual-inertial depth estimation pipeline that integrates monocular depth estimation and visual-inertial odometry to produce dense depth estimates with metric scale. Our approach performs global scale and shift alignment…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Diana Wofk , René Ranftl , Matthias Müller , Vladlen Koltun

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 propose an estimation method using a recurrent neural network (RNN) of the colon's shape where deformation was occurred by a colonoscope insertion. Colonoscope tracking or a navigation system that navigates physician to polyp positions…

Computer Vision and Pattern Recognition · Computer Science 2020-04-29 Masahiro Oda , Holger R. Roth , Takayuki Kitasaka , Kazuhiro Furukawa , Ryoji Miyahara , Yoshiki Hirooka , Hidemi Goto , Nassir Navab , Kensaku Mori

Automatic segmentation of left ventricle (LV) myocardium in cardiac short-axis cine MR images acquired on subjects with myocardial infarction is a challenging task, mainly because of the various types of image inhomogeneity caused by the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Dongqing Zhang , Ilknur Icke , Belma Dogdas , Sarayu Parimal , Smita Sampath , Joseph Forbes , Ansuman Bagchi , Chih-Liang Chin , Antong Chen

Monocular visual-inertial odometry (VIO) is a critical problem in robotics and autonomous driving. Traditional methods solve this problem based on filtering or optimization. While being fully interpretable, they rely on manual interference…

Robotics · Computer Science 2022-09-20 Zexi Chen , Haozhe Du , Xuecheng Xu , Rong Xiong , Yiyi Liao , Yue Wang

Recent advances in capsule endoscopy systems have introduced new methods and capabilities. The capsule endoscopy system, by observing the entire digestive tract, has significantly improved diagnosing gastrointestinal disorders and diseases.…

Computer Vision and Pattern Recognition · Computer Science 2018-02-23 Atefe Rajaeefar , Ali Emami , S. M. Reza Soroushmehr , Nader Karimi , Shadrokh Samavi , Kayvan Najarian

Invasive ductal carcinoma is a prevalent, potentially deadly disease associated with a high rate of morbidity and mortality. Its malignancy is the second leading cause of death from cancer in women. The mammogram is an extremely useful…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Rushabh Patel

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-tuning pretrained models heavily relies on endoscopic surgical…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Yinheng Lin , Yiming Huang , Beilei Cui , Long Bai , Huxin Gao , Hongliang Ren , Jiewen Lai

Learning a single static convolutional kernel in each convolutional layer is the common training paradigm of modern Convolutional Neural Networks (CNNs). Instead, recent research in dynamic convolution shows that learning a linear…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Chao Li , Aojun Zhou , Anbang Yao

Wireless capsule endoscopy (WCE) is a painless and non-invasive diagnostic tool for gastrointestinal (GI) diseases. However, due to GI anatomical constraints and hardware manufacturing limitations, WCE vision signals may suffer from…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Long Bai , Tong Chen , Yanan Wu , An Wang , Mobarakol Islam , Hongliang Ren

With the success of deep learning based approaches in tackling challenging problems in computer vision, a wide range of deep architectures have recently been proposed for the task of visual odometry (VO) estimation. Most of these proposed…

Robotics · Computer Science 2018-04-16 Ganesh Iyer , J. Krishna Murthy , Gunshi Gupta , K. Madhava Krishna , Liam Paull

Currently used wireless capsule endoscopy (WCE) is limited in terms of inspection time and flexibility since the capsule is passively moved by peristalsis and cannot be accurately positioned. Different methods have been proposed to…

Robotics · Computer Science 2021-12-28 Yangxin Xu , Keyu Li , Ziqi Zhao , Max Q. -H. Meng

Most feature-based stereo visual odometry (SVO) approaches estimate the motion of mobile robots by matching and tracking point features along a sequence of stereo images. However, in dynamic scenes mainly comprising moving pedestrians,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Baosheng Zhang , Xiaoguang Ma , Hongjun Ma , Chunbo Luo

Early detection of pulmonary cancer is the most promising way to enhance a patient's chance for survival. Accurate pulmonary nodule detection in computed tomography (CT) images is a crucial step in diagnosing pulmonary cancer. In this…

Computer Vision and Pattern Recognition · Computer Science 2017-08-30 Jia Ding , Aoxue Li , Zhiqiang Hu , Liwei Wang

In recent years, deep learning-based approaches for visual-inertial odometry (VIO) have shown remarkable performance outperforming traditional geometric methods. Yet, all existing methods use both the visual and inertial measurements for…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Mingyu Yang , Yu Chen , Hun-Seok Kim

We propose D3VO as a novel framework for monocular visual odometry that exploits deep networks on three levels -- deep depth, pose and uncertainty estimation. We first propose a novel self-supervised monocular depth estimation network…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Nan Yang , Lukas von Stumberg , Rui Wang , Daniel Cremers
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