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This paper is concerned with the problem of inverse scattering of time-harmonic acoustic plane waves by a two-layered medium with a locally rough interface in 2D. A direct imaging method is proposed to reconstruct the locally rough…

Numerical Analysis · Mathematics 2023-05-11 Long Li , Jiansheng Yang , Bo Zhang , Haiwen Zhang

The emergence of real-time 3D ultrasound (US) makes it possible to consider image-based tracking of subcutaneous soft tissue targets for computer guided diagnosis and therapy. We propose a 3D transrectal US based tracking system for precise…

Other Computer Science · Computer Science 2008-01-17 Michael Baumann , Pierre Mozer , Vincent Daanen , Jocelyne Troccaz

During the process of robot-assisted ultrasound(US) puncture, it is important to estimate the location of the puncture from the 2D US images. To this end, the calibration of the US image becomes an important issue. In this paper, we…

Robotics · Computer Science 2023-08-11 Fuqiang Zhao , Mingchang Li , Mengde Li , Zhongtao Fu , Miao Li

This paper proposes an end-to-end iris recognition method designed specifically for post-mortem samples, and thus serving as a perfect application for iris biometrics in forensics. To our knowledge, it is the first method specific for…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 Mateusz Trokielewicz , Adam Czajka , Piotr Maciejewicz

This study presents an enhanced proprioceptive method for accurate shape estimation of soft robots using only off-the-shelf sensors, ensuring cost-effectiveness and easy applicability. By integrating inertial measurement units (IMUs) with…

Robotics · Computer Science 2025-11-04 Dong Heon Han , Mayank Mehta , Runze Zuo , Zachary Wanger , Daniel Bruder

Incipient slip detection provides critical feedback for robotic grasping and manipulation tasks. However, maintaining its adaptability under diverse object properties and complex working conditions remains challenging. This article…

Robotics · Computer Science 2025-02-25 Mingxuan Li , Lunwei Zhang , Qiyin Huang , Tiemin Li , Yao Jiang

Segmentation of the infected areas of the lung is essential for quantifying the severity of lung disease like pulmonary infections. Existing medical image segmentation methods are almost uni-modal methods based on image. However, these…

Image and Video Processing · Electrical Eng. & Systems 2023-07-11 Yi Zhong , Mengqiu Xu , Kongming Liang , Kaixin Chen , Ming Wu

This paper presents a method for determining the area explored by a line-sweep sensor during an area-covering mission in a two-dimensional plane. Accurate knowledge of the explored area is crucial for various applications in robotics, such…

Robotics · Computer Science 2023-09-08 Maria Costa Vianna , Eric Goubault , Luc Jaulin , Sylvie Putot

The inductive response of an object to an oscillating magnetic field reveals information about its electrical conductivity and magnetic permeability. Here we introduce a technique that uses measurements of the angular, frequency and spatial…

Applied Physics · Physics 2021-11-24 R. Gartman , W. Chalupczak

The characteristics of an x-ray spectrum can greatly influence imaging and related tasks. In practice, due to the pile-up effect of the detector, it's difficult to directly measure the spectrum of a CT scanner using an energy resolved…

Medical Physics · Physics 2015-03-09 Wei Zhao , Kai Niu , Sebastian Schafer , Kevin Royalty

The in vitro scratch assay is a widely used assay in cell biology to assess the rate of wound closure related to a variety of therapeutic interventions. While manual measurement is subjective and vulnerable to intra- and interobserver…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Katja Löwenstein , Johanna Rehrl , Anja Schuster , Michael Gadermayr

This paper introduces a motion retargeting method that preserves self-contacts and prevents interpenetration. Self-contacts, such as when hands touch each other or the torso or the head, are important attributes of human body language and…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Ruben Villegas , Duygu Ceylan , Aaron Hertzmann , Jimei Yang , Jun Saito

Although Poisson's ratio, v, is a quantity of great importance in materials design, presently, very few methods are available to measure it at small (micrometre) scales and those typically involve intensive geometric refinement of the…

Materials Science · Physics 2021-03-09 Owen Brazil , George Pharr

Ultrasound-guided percutaneous needle insertion is a standard procedure employed in both biopsy and ablation in clinical practices. However, due to the complex interaction between tissue and instrument, the needle may deviate from the…

Tracing sensation plays an important role in discriminating friction and texture of objects. We have been studying a method of presenting the tracing sensation by contacting the center of a rotating disk with the fingertip. Although this…

Human-Computer Interaction · Computer Science 2024-11-11 Soma Kato , Izumi Mizoguchi , Hiroyuki Kajimoto

Using the tip of a scanning probe microscope as a local electrostatic gate gives access to real space information on electrostatics as well as charge transport at the nanoscale, provided that the tip-induced electrostatic potential is well…

Mesoscale and Nanoscale Physics · Physics 2020-11-13 A. Iordanescu , S. Toussaint , G. Bachelier , S. Fallahi , C. G. Gardner , M. J. Manfra , B. Hackens , B. Brun

Accurate and safe catheter ablation procedures for patients with atrial fibrillation require precise segmentation of cardiac structures in Intracardiac Echocardiography (ICE) imaging. Prior studies have suggested methods that employ 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Ahmed H. Shahin , Yan Zhuang , Noha El-Zehiry

The airborne ultrasound tactile display can present tactile information without direct contact. Using this technology, we developed two methods for simulating the tactile sensation of tapping an object with a finger: the Amplitude…

Human-Computer Interaction · Computer Science 2024-11-12 Haruka Tsuchiya , Zen Somei , Yasutoshi Makino , Hiroyuki Shinoda

The need for tomographic reconstruction from sparse measurements arises when the measurement process is potentially harmful, needs to be rapid, or is uneconomical. In such cases, prior information from previous longitudinal scans of the…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 Preeti Gopal , Sharat Chandran , Imants Svalbe , Ajit Rajwade

Imaging mass spectrometry (IMS) is a powerful tool for untargeted, highly multiplexed molecular mapping of tissue in biomedical research. IMS offers a means of mapping the spatial distributions of molecular species in biological tissue with…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Yijie Zhang , Luzhe Huang , Nir Pillar , Yuzhu Li , Lukasz G. Migas , Raf Van de Plas , Jeffrey M. Spraggins , Aydogan Ozcan