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Multi-scale 3D characterization is widely used by materials scientists to further their understanding of the relationships between microscopic structure and macroscopic function. Scientific computed tomography (CT) instruments are one of…

Image and Video Processing · Electrical Eng. & Systems 2022-01-12 S. V. Venkatakrishnan , K. Aditya Mohan , Amir Koushyar Ziabari , Charles A. Bouman

Reliable and real-time 3D reconstruction and localization functionality is a crucial prerequisite for the navigation of actively controlled capsule endoscopic robots as an emerging, minimally invasive diagnostic and therapeutic technology…

Deformable image registration is a very important field of research in medical imaging. Recently multiple deep learning approaches were published in this area showing promising results. However, drawbacks of deep learning methods are the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Tobias Fechter , Dimos Baltas

3-D image registration, which involves aligning two or more images, is a critical step in a variety of medical applications from diagnosis to therapy. Image registration is commonly performed by optimizing an image matching metric as a cost…

Computer Vision and Pattern Recognition · Computer Science 2016-12-01 Rui Liao , Shun Miao , Pierre de Tournemire , Sasa Grbic , Ali Kamen , Tommaso Mansi , Dorin Comaniciu

In recent years, implicit functions have drawn attention in the field of 3D reconstruction and have successfully been applied with Deep Learning. However, for incremental reconstruction, implicit function-based registrations have been…

Robotics · Computer Science 2022-06-01 Yijun Yuan , Andreas Nuechter

We present a new fully-automatic non-rigid 3D shape registration (morphing) framework comprising (1) a new 3D landmarking and pose normalisation method; (2) an adaptive shape template method to accelerate the convergence of registration…

Computer Vision and Pattern Recognition · Computer Science 2018-09-25 Hang Dai , Nick Pears , William Smith

In multi-view human body capture systems, the recovered 3D geometry or even the acquired imagery data can be heavily corrupted due to occlusions, noise, limited field of- view, etc. Direct estimation of 3D pose, body shape or motion on…

Computer Vision and Pattern Recognition · Computer Science 2018-02-02 Zhong Li , Yu Ji , Wei Yang , Jinwei Ye , Jingyi Yu

Deformation field estimation is an important and challenging issue in many medical image registration applications. In recent years, deep learning technique has become a promising approach for simplifying registration problems, and has been…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Yujia Zhou , Shumao Pang , Jun Cheng , Yuhang Sun , Yi Wu , Lei Zhao , Yaqin Liu , Zhentai Lu , Wei Yang , Qianjin Feng

For robot manipulation, a complete and accurate object shape is desirable. Here, we present a method that combines visual and haptic reconstruction in a closed-loop pipeline. From an initial viewpoint, the object shape is reconstructed…

Robotics · Computer Science 2024-09-11 Lukas Rustler , Jiri Matas , Matej Hoffmann

We present an approach for estimating a mobile robot's pose w.r.t. the allocentric coordinates of a network of static cameras using multi-view RGB images. The images are processed online, locally on smart edge sensors by deep neural…

Robotics · Computer Science 2023-03-08 Simon Bultmann , Raphael Memmesheimer , Sven Behnke

Tendon-driven continuum robots have been gaining popularity in medical applications due to their ability to curve around complex anatomical structures, potentially reducing the invasiveness of surgery. However, accurate modeling is required…

Robotics · Computer Science 2024-04-08 Brian Y. Cho , Daniel S. Esser , Jordan Thompson , Bao Thach , Robert J. Webster , Alan Kuntz

Registration is a fundamental task in medical robotics and is often a crucial step for many downstream tasks such as motion analysis, intra-operative tracking and image segmentation. Popular registration methods such as ANTs and NiftyReg…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Wentao Zhu , Yufang Huang , Daguang Xu , Zhen Qian , Wei Fan , Xiaohui Xie

The advancement of simulation-assisted robot programming, automation of high-tolerance assembly operations, and improvement of real-world performance engender a need for positionally accurate robots. Despite tight machining tolerances, good…

Robotics · Computer Science 2019-08-21 Karl Van Wyk , Joe Falco , Geraldine Cheok

Markerless estimation of 3D Kinematics has the great potential to clinically diagnose and monitor movement disorders without referrals to expensive motion capture labs; however, current approaches are limited by performing multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-01-16 Marian Bittner , Wei-Tse Yang , Xucong Zhang , Ajay Seth , Jan van Gemert , Frans C. T. van der Helm

In this paper, we investigate visual-based camera re-localization with neural networks for robotics and autonomous vehicles applications. Our solution is a CNN-based algorithm which predicts camera pose (3D translation and 3D rotation)…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Arthur Moreau , Nathan Piasco , Dzmitry Tsishkou , Bogdan Stanciulescu , Arnaud de La Fortelle

Tracking the 6D pose of objects in video sequences is important for robot manipulation. This task, however, introduces multiple challenges: (i) robot manipulation involves significant occlusions; (ii) data and annotations are troublesome…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Bowen Wen , Chaitanya Mitash , Baozhang Ren , Kostas E. Bekris

Although strain-based models have been widely adopted in robotics, no comparison beyond the uniform bending test is commonly recognized to assess their performance. In addition, the increasing effort in prototyping continuum robots…

Robotics · Computer Science 2026-02-27 Annika Delucchi , Vincenzo Di Paola , Andreas Müller , and Matteo Zoppi

In this paper, we tackle the problem of active robotic 3D reconstruction of an object. In particular, we study how a mobile robot with an arm-held camera can select a favorable number of views to recover an object's 3D shape efficiently.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Soomin Lee , Le Chen , Jiahao Wang , Alexander Liniger , Suryansh Kumar , Fisher Yu

Precise 6D pose estimation of rigid objects from RGB images is a critical but challenging task in robotics, augmented reality and human-computer interaction. To address this problem, we propose DeepRM, a novel recurrent network architecture…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Alexander Avery , Andreas Savakis

Mobile robots dedicated in security tasks should be capable of clearly perceiving their environment to competently navigate within cluttered areas, so as to accomplish their assigned mission. The paper in hand describes such an autonomous…

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