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Developing high-performance, real-time architectures for LiDAR-based 3D object detectors is essential for the successful commercialization of autonomous vehicles. Pillar-based methods stand out as a practical choice for onboard deployment…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Konyul Park , Yecheol Kim , Junho Koh , Byungwoo Park , Jun Won Choi

We propose a new shape analysis approach based on the non-local analysis of local shape variations. Our method relies on a novel description of shape variations, called Local Probing Field (LPF), which describes how a local probing operator…

Computational Geometry · Computer Science 2017-11-03 Julie Digne , Sébastien Valette , Raphaëlle Chaine

Location determination finds wide applications in daily life. Instead of existing efforts devoted to localizing tourist photos captured by perspective cameras, in this article, we focus on devising person positioning solutions using…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Lu Yang , Liulei Li , Xueshi Xin , Yifan Sun , Qing Song , Wenguan Wang

In this paper, we present a multipath-based simultaneous localization and mapping (SLAM) algorithm that continuously adapts mulitiple map feature (MF) models describing specularly reflected multipath components (MPCs) from flat surfaces and…

Signal Processing · Electrical Eng. & Systems 2024-03-18 Xuhong Li , Xuesong Cai , Erik Leitinger , Fredrik Tufvesson

We propose a technique to improve the search efficiency of the bag-of-words (BoW) method for image retrieval. We introduce a notion of difficulty for the image matching problems and propose methods that reduce the amount of computations…

Computer Vision and Pattern Recognition · Computer Science 2013-12-31 Kiana Hajebi , Hong Zhang

Multimodal time series forecasting is foundational in various fields, such as utilizing satellite imagery and numerical data for predicting typhoons in climate science. However, existing multimodal approaches primarily focus on utilizing…

Machine Learning · Computer Science 2025-06-19 Haobo Li , Eunseo Jung , Zixin Chen , Zhaowei Wang , Yueya Wang , Huamin Qu , Alexis Kai Hon Lau

A cognitive fully adaptive radar (CoFAR) adapts its behavior on its own within a short period of time in response to changes in the target environment. For the CoFAR to function properly, it is critical to understand its operating…

Signal Processing · Electrical Eng. & Systems 2024-08-13 Kunwar Pritiraj Rajput , Bhavani Shankar M. R. , Kumar Vijay Mishra , Muralidhar Rangaswamy , Bjorn Ottersten

Simultaneous Localization and Mapping (SLAM) presents a formidable challenge in robotics, involving the dynamic construction of a map while concurrently determining the precise location of the robotic agent within an unfamiliar environment.…

Artificial Intelligence · Computer Science 2024-02-21 Tianrui Liu , Changxin Xu , Yuxin Qiao , Chufeng Jiang , Jiqiang Yu

Drone-camera based human activity recognition (HAR) has received significant attention from the computer vision research community in the past few years. A robust and efficient HAR system has a pivotal role in fields like video…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Santosh Kumar Yadav , Esha Pahwa , Achleshwar Luthra , Kamlesh Tiwari , Hari Mohan Pandey , Peter Corcoran

The emerging orthogonal time frequency space (OTFS) modulation technique has shown its superiority to the current orthogonal frequency division multiplexing (OFDM) scheme, in terms of its capabilities of exploiting full time-frequency…

Signal Processing · Electrical Eng. & Systems 2019-12-02 Weijie Yuan , Zhiqiang Wei , Jinhong Yuan , Derrick Wing Kwan Ng

Data coding as a building block of several image processing algorithms has been received great attention recently. Indeed, the importance of the locality assumption in coding approaches is studied in numerous works and several methods are…

Computer Vision and Pattern Recognition · Computer Science 2014-03-06 Amirreza Shaban , Hamid R. Rabiee , Mahyar Najibi

Lane segment topology reasoning provides comprehensive bird's-eye view (BEV) road scene understanding, which can serve as a key perception module in planning-oriented end-to-end autonomous driving systems. Existing lane topology reasoning…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Yiming Yang , Hongbin Lin , Yueru Luo , Suzhong Fu , Chao Zheng , Xinrui Yan , Shuqi Mei , Kun Tang , Shuguang Cui , Zhen Li

The adoption of fisheye cameras in robotic manipulation, driven by their exceptionally wide Field of View (FoV), is rapidly outpacing a systematic understanding of their downstream effects on policy learning. This paper presents the first…

Robotics · Computer Science 2026-03-03 Han Xue , Nan Min , Xiaotong Liu , Wendi Chen , Yuan Fang , Jun Lv , Cewu Lu , Chuan Wen

Signals of opportunity (SOPs) are a promising technique that can be used for relative positioning in areas where global navigation satellite system (GNSS) information is unreliable or unavailable. This technique processes features of the…

Signal Processing · Electrical Eng. & Systems 2022-08-10 Nicolas Souli , Panayiotis Kolios , Georgios Ellinas

Carrier frequency offset estimation (CFOE) is a critical stage in modern coherent optical communication systems. Although conventional all-digital techniques perform reliably in typical fiber-optic communication links, CFOE often becomes a…

Signal Processing · Electrical Eng. & Systems 2026-03-31 I. P. Vieira , G. V. Serra , R. A. Colares , D. A. A. Mello

It is at times important to detect human presence automatically in secure environments. This needs a shape recognition algorithm that is robust, fast and has low error rates. The algorithm needs to process camera images quickly to detect…

Computer Vision and Pattern Recognition · Computer Science 2015-06-30 Dhriti Sengupta , Merina Kundu , Jayati Ghosh Dastidar

We present a new pipeline developed to detect and characterize faint astronomical companions at small angular separation from the host star using sets of wide-field imaging observations not specifically designed for High Contrast Imaging…

Instrumentation and Methods for Astrophysics · Physics 2022-09-28 Giovanni M. Strampelli , Laurent Pueyo , Jonathan Aguilar , Antonio Aparicio , Gaspard Duchêne , Massimo Robberto

Fringe pattern based measurement techniques are the state-of-the-art in full-field optical metrology. They are crucial both in macroscale, e.g., fringe projection profilometry, and microscale, e.g., label-free quantitative phase microscopy.…

Image and Video Processing · Electrical Eng. & Systems 2023-10-25 Maria Cywinska , Mikolaj Rogalski , Filip Brzeski , Krzysztof Patorski , Maciej Trusiak

The technological innovation towards 6G cellular networks introduces unprecedented capabilities for user equipment (UE) localization, but it also raises serious concerns about physical layer location privacy. This paper introduces…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Lorenzo Italiano , Alireza Pourafzal , Hui Chen , Mattia Brambilla , Gonzalo Seco-Granados , Monica Nicoli , Henk Wymeersch

One of the major issues in Wireless Body Area Sensor Networks (WBASNs) is efficient localization. There are various techniques for indoor and outdoor environments to locate a person. This study evaluating and compares performance of…

Networking and Internet Architecture · Computer Science 2012-07-09 Obaid ur Rehman , Nadeem Javaid , Ayesha Bibi , Zahoor Ali Khan