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Depth sensing is of paramount importance for unmanned aerial and autonomous vehicles. Nonetheless, contemporary monocular depth estimation methods employing complex deep neural networks within Convolutional Neural Networks are inadequately…

计算机视觉与模式识别 · 计算机科学 2024-06-10 Cheng Feng , Congxuan Zhang , Zhen Chen , Weiming Hu , Liyue Ge

Autonomous navigation in 3D is a fundamental problem for autonomy. Despite major advancements in terrestrial and aerial settings due to improved range sensors including LiDAR, compact sensors with similar capabilities for underwater robots…

机器人学 · 计算机科学 2025-10-23 Susheel Vadakkekuruppath , Herman B. Amundsen , Jason M. O'Kane , Marios Xanthidis

Reconfigurable Intelligent Surfaces (RISs) are announced as a truly transformative technology, capable of smartly shaping wireless environments to optimize next-generation communication networks. Among their numerous foreseen applications,…

信号处理 · 电气工程与系统科学 2023-06-21 Moustafa Rahal , Benoit Denis , Taghrid Mazloum , Frederic Munoz , Raffaele D Errico

An extended aperture has the potential to greatly improve ultrasound imaging performance. This work extends the effective aperture size by coherently compounding the received radio frequency data from multiple transducers. A framework is…

Spatial frequency domain imaging (SFDI) is a low-cost imaging technique that can deliver real-time maps of absorption and reduced scattering coefficients. However, there are a wide range of imaging geometries that practical SFDI systems…

图像与视频处理 · 电气工程与系统科学 2023-02-27 Jane Crowley , George S. D. Gordon

We propose a novel instrument design to greatly expand the current optical and near-infrared SETI search parameter space by monitoring the entire observable sky during all observable time. This instrument is aimed to search for…

In this paper, we develop and open-source, for the first time, a square-root filter (SRF)-based visual-inertial navigation system (VINS), termed sqrtVINS, which is ultra-fast, numerically stable, and capable of dynamic initialization even…

机器人学 · 计算机科学 2025-10-14 Yuxiang Peng , Chuchu Chen , Kejian Wu , Guoquan Huang

Reconfigurable intelligent surface (RIS) is a promising solution to boost coverage sustainably by reflecting waves from a transmitter to a receiver and acting as a low-power and passive relay. In this paper, for the first time, we…

信息论 · 计算机科学 2023-07-14 Philippe Ratajczak , Eric Séguenot , Dinh-Thuy Phan-Huy

Ultrasound (US) imaging is widely used in diagnosing and staging abdominal diseases due to its lack of non-ionizing radiation and prevalent availability. However, significant inter-operator variability and inconsistent image acquisition…

机器人学 · 计算机科学 2024-10-28 Yordanka Velikova , Mohammad Farid Azampour , Walter Simson , Marco Esposito , Nassir Navab

In recent years, MEMS inertial sensors (3D accelerometers and 3D gyroscopes) have become widely available due to their small size and low cost. Inertial sensor measurements are obtained at high sampling rates and can be integrated to obtain…

机器人学 · 计算机科学 2018-06-12 Manon Kok , Jeroen D. Hol , Thomas B. Schön

This paper addresses the challenges associated with hyperspectral image (HSI) reconstruction from miniaturized satellites, which often suffer from stripe effects and are computationally resource-limited. We propose a Real-Time Compressed…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Chih-Chung Hsu , Chih-Yu Jian , Eng-Shen Tu , Chia-Ming Lee , Guan-Lin Chen

Spectroscopy of whispering-gallery mode (WGM) microresonators has become a powerful scientific tool, enabling detection of single viruses, nanoparticles, and even single molecules. Yet the demonstrated timescale of these schemes has been…

光学 · 物理学 2015-06-23 Serge Rosenblum , Yulia Lovsky , Lior Arazi , Frank Vollmer , Barak Dayan

In this study, we present an approach to ultrasonic beamforming and high resolution identification of acoustic sources having critical implications for structural health monitoring technology. The proposed concept is based on the design of…

材料科学 · 物理学 2015-06-18 Fabio Semperlotti , Hongfei Zhu

Ultrasound (US) is widely used for clinical imaging applications thanks to its real-time and non-invasive nature. However, its lesion detectability is often limited in many applications due to the phase aberration artefact caused by…

图像与视频处理 · 电气工程与系统科学 2022-02-18 Shujaat Khan , Jaeyoung Huh , Jong Chul Ye

Recently, there has been an increase in the demand of virtual 3D objects representing real-life objects. A plethora of methods and systems have already been proposed for the acquisition of the geometry of real-life objects ranging from…

计算机视觉与模式识别 · 计算机科学 2016-08-23 Qing Gu , Kyriakos Herakleous , Charalambos Poullis

A state-of-the-art Resonant Inelastic X-ray Scattering (RIXS) facility, composed of a dedicated beamline and a 2D-RIXS spectrometer, has been constructed and commissioned at BL02U in NanoTerasu, Japan. This paper reports the optical design…

仪器与探测器 · 物理学 2026-01-14 Jun Miyawaki

This study explores the use of non-line-of-sight (NLOS) components in millimeter-wave (mmWave) communication systems for joint localization and environment sensing. The radar cross section (RCS) of a reconfigurable intelligent surface (RIS)…

信息论 · 计算机科学 2023-05-23 Yixuan Huang , Jie Yang , Wankai Tang , Chao-Kai Wen , Shuqiang Xia , Shi Jin

Three-dimensional ultrasound imaging is a critical technology widely used in medical diagnostics. However, traditional 3D ultrasound imaging methods have limitations such as fixed resolution, low storage efficiency, and insufficient…

人工智能 · 计算机科学 2024-09-16 Ziwen Guo , Zi Fang , Zhuang Fu

Radio tomographic imaging (RTI) enables device free localisation of people and objects in many challenging environments and situations. Its basic principle is to detect the changes in the statistics of some radio quality measurements in…

其他计算机科学 · 计算机科学 2014-02-13 Bo Wei , Ambuj Varshney , Wen Hu , Neal Patwari , Thiemo Voigt , Chun Tung Chou

This paper introduces a new algorithm for accurately reconstructing two smooth orthogonal surfaces by processing ultrasonic data. The proposed technique is based on a preliminary analysis of a waveform energy indicator in order to classify…

机器人学 · 计算机科学 2014-01-22 Nicola Ivan Giannoccaro , Giovanni Indiveri , Luigi Spedicato