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The accelerating demand for wireless communication necessitates wideband, energy-efficient photonic sub-terahertz (sub-THz) sources to enable ultra-fast data transfer. However, as critical components for THz photonic mixing, photodiodes…

Accurate 3D human pose estimation (3D HPE) is crucial for enabling autonomous vehicles (AVs) to make informed decisions and respond proactively in critical road scenarios. Promising results of 3D HPE have been gained in several domains such…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Peter Bauer , Arij Bouazizi , Ulrich Kressel , Fabian B. Flohr

Accurate beam alignment is essential for beam-based millimeter wave communications. Conventional beam sweeping solutions often have large overhead, which is unacceptable for mobile applications like vehicle-to-everything. Learning-based…

Information Theory · Computer Science 2024-10-30 Vutha Va , Takayuki Shimizu , Gaurav Bansal , Robert W. Heath

Beam steering device such as optical phased array (OPA) is a key component in applications of solid-state Lidar and wireless communication. The traditional single-layer optical phased array (OPA) results in a significant energy loss due to…

Applied Physics · Physics 2020-04-22 Dachuan Wu , Yasha Yi , Yuxiao Zhang

With the growing demand for oriented object detection (OOD), recent studies on point-supervised OOD have attracted significant interest. In this paper, we propose PointOBB-v3, a stronger single point-supervised OOD framework. Compared to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Peiyuan Zhang , Junwei Luo , Xue Yang , Yi Yu , Qingyun Li , Yue Zhou , Xiaosong Jia , Xudong Lu , Jingdong Chen , Xiang Li , Junchi Yan , Yansheng Li

In this paper, we first present a bias-eliminated weighted (Bias-Eli-W) perspective-n-point (PnP) estimator for stereo visual odometry (VO) with provable consistency. Specifically, leveraging statistical theory, we develop an asymptotically…

Robotics · Computer Science 2025-10-30 Guangyang Zeng , Yuan Shen , Ziyang Hong , Yuze Hong , Viorela Ila , Guodong Shi , Junfeng Wu

Pervasive and high-accuracy positioning has become increasingly important as a fundamental enabler for intelligent connected devices in mobile networks. Nevertheless, current wireless networks heavily rely on pure model-driven techniques to…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Shengheng Liu , Zihuan Mao , Xingkang Li , Mengguan Pan , Peng Liu , Yongming Huang , Xiaohu You

Location is one of the basic information required for underwater optical wireless sensor networks (UOWSNs) for different purposes such as relating the sensing measurements with precise sensor positions, enabling efficient geographic routing…

Signal Processing · Electrical Eng. & Systems 2018-10-24 Nasir Saeed , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Localizing mobile robotic nodes in indoor and GPS-denied environments is a complex problem, particularly in dynamic, unstructured scenarios where traditional cameras and LIDAR-based sensing and localization modalities may fail.…

Robotics · Computer Science 2023-07-06 Ehsan Latif , Ramviyas Parasuraman

Accurate and reliable localization is crucial for various wireless communication applications. Numerous studies have proposed accurate localization methods using hybrid received signal strength (RSS) and angle of arrival (AOA) measurements.…

Signal Processing · Electrical Eng. & Systems 2023-07-25 Weizhong Ding , Shengming Chang , Shudi Bao

A wireless sensor network comprises of small sensor nodes each of which consists of a processing device, small amount of memory, battery and radio transceiver for communication. The sensor nodes are autonomous and spatially distributed in…

Networking and Internet Architecture · Computer Science 2016-11-11 Muhammad Farooq-i-Azam , Muhammad Naeem Ayyaz

Point Spread Function (PSF) engineering is used in single emitter localization to measure the emitter position in 3D and possibly other parameters such as the emission color or dipole orientation as well. Advanced PSF models such as spline…

In this paper, we propose a method for initial camera pose estimation from just a single image which is robust to viewing conditions and does not require a detailed model of the scene. This method meets the growing need of easy deployment…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Matthieu Zins , Gilles Simon , Marie-Odile Berger

In the field of remote sensing, we often utilize oriented bounding boxes (OBB) to bound the objects. This approach significantly reduces the overlap among dense detection boxes and minimizes the inclusion of background content within the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Jianghu Shen , Xiaojun Wu

A simple geometric shaping method is proposed for optical wireless communication systems based on intensity modulation and direct detection (IM/DD) from an information-theoretic perspective. Constellations consisting of equiprobable levels…

Information Theory · Computer Science 2024-12-03 Suhua Zhou , Tianqi Li , Zhaoxi Fang , Jing Zhou , Wenyi Zhang

Precisely measuring the three-dimensional position and orientation of individual fluorophores is challenging due to the substantial photon shot noise in single-molecule experiments. Facing this limited photon budget, numerous techniques…

Optics · Physics 2021-02-02 Oumeng Zhang , Matthew D. Lew

Existing learning methods for LiDAR-based applications use 3D points scanned under a pre-determined beam configuration, e.g., the elevation angles of beams are often evenly distributed. Those fixed configurations are task-agnostic, so…

Robotics · Computer Science 2023-03-29 Niclas Vödisch , Ozan Unal , Ke Li , Luc Van Gool , Dengxin Dai

The practicality of 3D object pose estimation remains limited for many applications due to the need for prior knowledge of a 3D model and a training period for new objects. To address this limitation, we propose an approach that takes a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Van Nguyen Nguyen , Thibault Groueix , Yinlin Hu , Mathieu Salzmann , Vincent Lepetit

The rapid advancement of the next generation of communications and internet of things (IoT) technologies has made the provision of location-based services for diverse devices an increasingly pressing necessity. Localizing devices…

Signal Processing · Electrical Eng. & Systems 2024-08-09 Yixuan Guo , Qingwei Jiang , Mengyuan Xu , Wen Fang , Qingwen Liu , Gang Yan , Qunhui Yang , Hai Lu

Organic light-emitting diodes (OLEDs) are the leading self-emitting pixel technology in current and future small and large area displays. Once integrated with a certain layer architecture into the backplane layout, their emission colour and…

Applied Physics · Physics 2019-06-07 Felix Fries , Markus Fröbel , Pen Yiao Ang , Simone Lenk , Sebastian Reineke
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