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This letter presents a novel method to estimate the relative poses between RGB-D cameras with minimal overlapping fields of view in a panoramic RGB-D camera system. This calibration problem is relevant to applications such as indoor 3D…

Image and Video Processing · Electrical Eng. & Systems 2018-09-11 Hang Liu , Hengyu Li , Xiahua Liu , Jun Luo , Shaorong Xie , Yu Sun

General object grasping is an important yet unsolved problem in the field of robotics. Most of the current methods either generate grasp poses with few DoF that fail to cover most of the success grasps, or only take the unstable depth image…

Robotics · Computer Science 2021-03-04 Minghao Gou , Hao-Shu Fang , Zhanda Zhu , Sheng Xu , Chenxi Wang , Cewu Lu

We propose a 6D RGB-D odometry approach that finds the relative camera pose between consecutive RGB-D frames by keypoint extraction and feature matching both on the RGB and depth image planes. Furthermore, we feed the estimated pose to the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Nadia Figueroa , Haiwei Dong , Abdulmotaleb El Saddik

This paper presents deformable templates as a tool for segmentation and localization of biological structures in medical images. Structures are represented by a prototype template, combined with a parametric warp mapping used to deform the…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Jonathan M. Spiller , T. Marwala

Automated in-vitro cell detection and counting have been a key theme for artificial and intelligent biological analysis such as biopsy, drug analysis and decease diagnosis. Along with the rapid development of microfluidics and lab-on-chip…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Tiancheng Xia , Richard Jiang , YongQing Fu , Nanlin Jin

We propose an unsupervised deep learning algorithm for the motion-compensated reconstruction of 5D cardiac MRI data from 3D radial acquisitions. Ungated free-breathing 5D MRI simplifies the scan planning, improves patient comfort, and…

Image and Video Processing · Electrical Eng. & Systems 2023-09-12 Joseph Kettelkamp , Ludovica Romanin , Davide Piccini , Sarv Priya , Mathews Jacob

The crucial components of a conventional image registration method are the choice of the right feature representations and similarity measures. These two components, although elaborately designed, are somewhat handcrafted using human…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Shanhui Sun , Jing Hu , Mingqing Yao , Jinrong Hu , Xiaodong Yang , Qi Song , Xi Wu

We present a novel RGB-D mapping system for generating 3D maps over spatially extended regions with higher resolution than current methods using multiple, dynamically placed mapping volumes. Our method takes in RGB-D frames and dynamically…

Robotics · Computer Science 2015-11-24 Michael Salvato , Ross Finman , John Leonard

Magnetic resonance imaging (MRI) is renowned for its exceptional soft tissue contrast and high spatial resolution, making it a pivotal tool in medical imaging. The integration of deep learning algorithms offers significant potential for…

Image and Video Processing · Electrical Eng. & Systems 2024-06-06 Wanyu Bian

This paper proposes a method for hand pose estimation from RGB images that uses both external large-scale depth image datasets and paired depth and RGB images as privileged information at training time. We show that providing depth…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Shanxin Yuan , Bjorn Stenger , Tae-Kyun Kim

This work is an endeavor to develop a deep learning methodology for automated anatomical labeling of a given region of interest (ROI) in brain computed tomography (CT) scans. We combine both local and global context to obtain a…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Srikrishna Varadarajan , Muktabh Mayank Srivastava , Monika Grewal , Pulkit Kumar

It has been shown that learning radiance fields with depth rendering and depth supervision can effectively promote the quality and convergence of view synthesis. However, this paradigm requires input RGB-D sequences to be synchronized,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Yuxin Huang , Andong Yang , Zirui Wu , Yuantao Chen , Runyi Yang , Zhenxin Zhu , Chao Hou , Hao Zhao , Guyue Zhou

Robotic arm grasping is a fundamental operation in robotic control task goals. Most current methods for robotic grasping focus on RGB-D policy in the table surface scenario or 3D point cloud analysis and inference in the 3D space. Comparing…

Robotics · Computer Science 2019-09-18 Yaoxian Song , Jun Wen , Yuejiao Fei , Changbin Yu

Modern deep learning techniques have enabled advances in image-based dietary assessment such as food recognition and food portion size estimation. Valuable information on the types of foods and the amount consumed are crucial for prevention…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Jiangpeng He , Runyu Mao , Zeman Shao , Janine L. Wright , Deborah A. Kerr , Carol J. Boushey , Fengqing Zhu

Cardiac tagging magnetic resonance imaging (t-MRI) is the gold standard for regional myocardium deformation and cardiac strain estimation. However, this technique has not been widely used in clinical diagnosis, as a result of the difficulty…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Meng Ye , Mikael Kanski , Dong Yang , Qi Chang , Zhennan Yan , Qiaoying Huang , Leon Axel , Dimitris Metaxas

Though, deep learning based medical image registration is currently starting to show promising advances, often, it still fells behind conventional frameworks in terms of registration accuracy. This is especially true for applications where…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Lasse Hansen , Mattias P. Heinrich

A deep learning architecture is proposed to predict graspable locations for robotic manipulation. It considers situations where no, one, or multiple object(s) are seen. By defining the learning problem to be classification with null…

Robotics · Computer Science 2018-07-24 Fu-Jen Chu , Ruinian Xu , Patricio A. Vela

We present a deep learning-based multitask framework for joint 3D human pose estimation and action recognition from RGB video sequences. Our approach proceeds along two stages. In the first, we run a real-time 2D pose detector to determine…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Huy Hieu Pham , Houssam Salmane , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A Velastin

Beyond novel view synthesis, Neural Radiance Fields are useful for applications that interact with the real world. In this paper, we use them as an implicit map of a given scene and propose a camera relocalization algorithm tailored for…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Arthur Moreau , Nathan Piasco , Moussab Bennehar , Dzmitry Tsishkou , Bogdan Stanciulescu , Arnaud de La Fortelle

Localizing the camera in a known indoor environment is a key building block for scene mapping, robot navigation, AR, etc. Recent advances estimate the camera pose via optimization over the 2D/3D-3D correspondences established between the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Siyan Dong , Qingnan Fan , He Wang , Ji Shi , Li Yi , Thomas Funkhouser , Baoquan Chen , Leonidas Guibas