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Source localization plays a key role in many applications including radar, wireless and underwater communications. Among various localization methods, the most popular ones are Time-Of-Arrival (TOA), Time-Difference-Of-Arrival (TDOA), and…

Signal Processing · Electrical Eng. & Systems 2022-03-07 Nitesh Sahu , Linlong Wu , Prabhu Babu , Bhavani Shankar M. R. , Björn Ottersten

We focus on coherent direction of arrival estimation of wideband sources based on spatial sparsity. This area of research is encountered in many applications such as passive radar, sonar, mining, and communication problems, in which an…

Signal Processing · Electrical Eng. & Systems 2024-01-18 Milad Javadzadeh Jirhandeh , Mohammad Hossein Kahaei

Recent localization frameworks exploit spatial information of complex channel measurements (CMs) to estimate accurate positions even in multipath propagation scenarios. State-of-the art CM fingerprinting(FP)-based methods employ…

Signal Processing · Electrical Eng. & Systems 2022-03-25 Sebastian Kram , Christopher Kraus , Tobias Feigl , Maximilian Stahlke , Jörg Robert , Christopher Mutschler

Methods for source detection in high noise environments are important for single-photon emission computed tomography (SPECT) medical imaging and especially crucial for homeland security applications, which is our main interest. In the…

Instrumentation and Detectors · Physics 2020-10-28 Weston Baines , Peter Kuchment , Jean Ragusa

This paper investigates indoor point cloud semantic segmentation under scene-level annotation, which is less explored compared to methods relying on sparse point-level labels. In the absence of precise point-level labels, current methods…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Lunhao Duan , Shanshan Zhao , Xingxing Weng , Jing Zhang , Gui-Song Xia

Source seeking is an important topic in robotic research, especially considering sound-based sensors since they allow the agents to locate a target even in critical conditions where it is not possible to establish a direct line of sight. In…

Location information can be a valuable signal for audio segmentation tasks, especially as a complement to methods focusing on the content or qualities of the sources. Though audio source localization is typically performed using the…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-12 Matthew Maciejewski

With the recent growth of urban mapping and autonomous driving efforts, there has been an explosion of raw 3D data collected from terrestrial platforms with lidar scanners and color cameras. However, due to high labeling costs, ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Kyle Genova , Xiaoqi Yin , Abhijit Kundu , Caroline Pantofaru , Forrester Cole , Avneesh Sud , Brian Brewington , Brian Shucker , Thomas Funkhouser

Point cloud semantic segmentation is a crucial task in 3D scene understanding. Existing methods mainly focus on employing a large number of annotated labels for supervised semantic segmentation. Nonetheless, manually labeling such large…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Mingmei Cheng , Le Hui , Jin Xie , Jian Yang

Sound source localization is a typical and challenging task that predicts the location of sound sources in a video. Previous single-source methods mainly used the audio-visual association as clues to localize sounding objects in each image.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Shentong Mo , Yapeng Tian

Sound source localization (SSL) is a critical technology for determining the position of sound sources in complex environments. However, existing methods face challenges such as high computational costs and precise calibration requirements,…

Sound · Computer Science 2025-05-28 Yiyuan Yang , Shitong Xu , Niki Trigoni , Andrew Markham

Code retrieval techniques and tools have been playing a key role in facilitating software developers to retrieve existing code fragments from available open-source repositories given a user query. Despite the existing efforts in improving…

Software Engineering · Computer Science 2019-10-01 Yao Wan , Jingdong Shu , Yulei Sui , Guandong Xu , Zhou Zhao , Jian Wu , Philip S. Yu

In recent years, the research community has shown a lot of interest to panoramic images that offer a 360-degree directional perspective. Multiple data modalities can be fed, and complimentary characteristics can be utilized for more robust…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Suresh Guttikonda , Jason Rambach

We introduce a Bayesian estimation approach for the passive localization of an acoustic source in shallow water using a single mobile receiver. The proposed probabilistic focalization method estimates the time-varying source location in the…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Luisa Watkins , Pietro Stinco , Alessandra Tesei , Florian Meyer

Multi-source domain adaptation aims at leveraging the knowledge from multiple tasks for predicting a related target domain. Hence, a crucial aspect is to properly combine different sources based on their relations. In this paper, we…

Machine Learning · Computer Science 2021-06-16 Changjian Shui , Zijian Li , Jiaqi Li , Christian Gagné , Charles Ling , Boyu Wang

Utilization of directional antennas is a promising solution for efficient spectrum sensing and accurate source localization and tracking. Spectrum sensors equipped with directional antennas should constantly scan the space in order to track…

Signal Processing · Electrical Eng. & Systems 2019-05-23 Mohsen Joneidi , Hassan Yazdani , Azadeh Vosoughi , Nazanin Rahnavard

Fast and efficient semantic segmentation of large-scale LiDAR point clouds is a fundamental problem in autonomous driving. To achieve this goal, the existing point-based methods mainly choose to adopt Random Sampling strategy to process…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 XianFeng Han , Huixian Cheng , Hang Jiang , Dehong He , Guoqiang Xiao

In recent years, video semantic segmentation has made great progress with advanced deep neural networks. However, there still exist two main challenges \ie, information inconsistency and computation cost. To deal with the two difficulties,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Jinming Su , Ruihong Yin , Shuaibin Zhang , Junfeng Luo

Source number detection is a critical problem in array signal processing. Conventional model-driven methods e.g., Akaikes information criterion (AIC) and minimum description length (MDL), suffer from severe performance degradation when the…

Information Theory · Computer Science 2020-02-19 Yuwen Yang , Feifei Gao , Cheng Qian , Guisheng Liao

Planet-scale photo geolocalization is the complex task of estimating the location depicted in an image solely based on its visual content. Due to the success of convolutional neural networks (CNNs), current approaches achieve super-human…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Jonas Theiner , Eric Mueller-Budack , Ralph Ewerth
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