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Location-aided beam alignment has been proposed recently as a potential approach for fast link establishment in millimeter wave (mmWave) massive MIMO (mMIMO) communications. However, due to mobility and other imperfections in the estimation…

Information Theory · Computer Science 2017-08-29 Flavio Maschietti , David Gesbert , Paul de Kerret , Henk Wymeersch

Ultrasound is one of the most frequently used imaging modality in medicine. The high spatial resolution, its interactive nature and non-invasiveness makes it the first choice in many examinations. Image interpretation is one of ultrasound's…

Ultra-wideband (UWB) time difference of arrival(TDOA)-based localization has emerged as a low-cost and scalable indoor positioning solution. However, in cluttered environments, the performance of UWB TDOA-based localization deteriorates due…

Robotics · Computer Science 2023-08-01 Wenda Zhao , Abhishek Goudar , Mingliang Tang , Xinyuan Qiao , Angela P. Schoellig

Due to the complexity of annotation and inter-annotator variability, most lung nodule malignancy grading datasets contain label noise, which inevitably degrades the performance and generalizability of models. Although researchers adopt the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Xianze Ai , Zehui Liao , Yong Xia

We consider the dynamical super-resolution problem consisting in the recovery of positions and velocities of moving particles from low-frequency static measurements taken over multiple time steps. The standard approach to this issue is a…

Numerical Analysis · Mathematics 2018-12-03 Giovanni S. Alberti , Habib Ammari , Francisco Romero , Timothée Wintz

The integration of deep learning in medical imaging has shown great promise for enhancing diagnostic, therapeutic, and research outcomes. However, applying universal models across multiple modalities remains challenging due to the inherent…

Image and Video Processing · Electrical Eng. & Systems 2024-12-30 Yixin Chen , Lin Gao , Yajuan Gao , Rui Wang , Jingge Lian , Xiangxi Meng , Yanhua Duan , Leiying Chai , Hongbin Han , Zhaoping Cheng , Zhaoheng Xie

Multi-modal registration is a required step for many image-guided procedures, especially ultrasound-guided interventions that require anatomical context. While a number of such registration algorithms are already available, they all require…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Viktoria Markova , Matteo Ronchetti , Wolfgang Wein , Oliver Zettinig , Raphael Prevost

Tracking single molecules is instrumental for quantifying the transport of molecules and nanoparticles in biological samples, e.g., in brain drug delivery studies. Existing intensity-based localisation methods are not developed for imaging…

We propose a new method of instance-level microtubule (MT) tracking in time-lapse image series using recurrent attention. Our novel deep learning algorithm segments individual MTs at each frame. Segmentation results from successive frames…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Samira Masoudi , Afsaneh Razi , Cameron H. G. Wright , Jay C. Gatlin , Ulas Bagci

Voxel-based analysis methods localize brain structural differences by performing voxel-wise statistical comparisons on two groups of images aligned to a common space. This procedure requires highly accurate registration as well as a…

Ultrasound imaging, as a noninvasive, real-time, and low-cost modality, plays a vital role in clinical diagnosis, catheterization intervention, and portable devices. With the development of transducer hardware and the continuous progress of…

Medical Physics · Physics 2025-07-22 Xuyang Chen , Mingtong Chen , Zhengbao Yang

When adapting Simultaneous Mapping and Localization (SLAM) to real-world applications, such as autonomous vehicles, drones, and augmented reality devices, its memory footprint and computing cost are the two main factors limiting the…

Robotics · Computer Science 2022-11-04 Yeonsoo Park , Soohyun Bae

In the field of biomedical imaging, ultrasonography has become increasingly widespread, and an important auxiliary diagnostic tool with unique advantages, such as being non-ionising and often portable. This article reviews the…

Signal Processing · Electrical Eng. & Systems 2022-11-08 Tianqi Yang , Oktay Karakuş , Nantheera Anantrasirichai , Alin Achim

Thanks to its capability of acquiring full-view frames at multiple kilohertz, ultrafast ultrasound imaging unlocked the analysis of rapidly changing physical phenomena in the human body, with pioneering applications such as ultrasensitive…

Image and Video Processing · Electrical Eng. & Systems 2020-12-22 Dimitris Perdios , Manuel Vonlanthen , Florian Martinez , Marcel Arditi , Jean-Philippe Thiran

Volumetric ultrasound has great potentials in promoting prenatal examinations. Automated solutions are highly desired to efficiently and effectively analyze the massive volumes. Segmentation and landmark localization are two key techniques…

Image and Video Processing · Electrical Eng. & Systems 2019-09-04 Xu Wang , Xin Yang , Haoran Dou , Shengli Li , Pheng-Ann Heng , Dong Ni

The increasing number of users leads to an increase in pilot overhead, and the limited pilot resources make it challenging to support all users using orthogonal pilots. By fully capturing the inherent physical characteristics of the…

Signal Processing · Electrical Eng. & Systems 2025-01-07 Kaiyuan Tian , Yani Chi , Yufan Zhou , An Liu

Health professionals extensively use Two- Dimensional (2D) Ultrasound (US) videos and images to visualize and measure internal organs for various purposes including evaluation of muscle architectural changes. US images can be used to…

Image and Video Processing · Electrical Eng. & Systems 2021-10-01 Alzayat Saleh , Issam H. Laradji , Corey Lammie , David Vazquez , Carol A Flavell , Mostafa Rahimi Azghadi

Medical ultrasound (US) is a widespread imaging modality owing its popularity to cost efficiency, portability, speed, and lack of harmful ionizing radiation. In this paper, we demonstrate that replacing the traditional ultrasound processing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Sanketh Vedula , Ortal Senouf , Grigoriy Zurakhov , Alex Bronstein , Oleg Michailovich , Michael Zibulevsky

The curvature of biological membranes at the nanometer scale is critically important for vesicle trafficking, organelle morphology, and disease propagation. This manuscript reports the development of Polarized Localization Microscopy (PLM),…

Biological Physics · Physics 2017-03-31 Abir Maarouf Kabbani , Christopher V. Kelly

The process of association and tracking of sensor detections is a key element in providing situational awareness. When the targets in the scenario are dense and exhibit high maneuverability, Multi-Target Tracking (MTT) becomes a challenging…

Machine Learning · Computer Science 2020-11-20 Rishabh Verma , R Rajesh , MS Easwaran