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We propose a semi-supervised localization approach based on deep generative modeling with variational autoencoders (VAEs). Localization in reverberant environments remains a challenge, which machine learning (ML) has shown promise in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Michael J. Bianco , Sharon Gannot , Peter Gerstoft

Efficient, accurate, and flexible relative localization is crucial in air-ground collaborative tasks. However, current approaches for robot relative localization are primarily realized in the form of distributed multi-robot SLAM systems…

This paper presents a simple and robust method for the automatic localisation of static 3D objects in large-scale urban environments. By exploiting the potential to merge a large volume of noisy but accurately localised 2D image data, we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-08 Giacomo Dabisias , Emanuele Ruffaldi , Hugo Grimmett , Peter Ondruska

A popular approach for 3D source localization using multiple microphones is the steered-response power method, where the source position is directly estimated by maximizing a function of three continuous position variables. Instead of…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-19 Klaus Brümann , Simon Doclo

To phased microphone array for sound source localization, algorithm with both high computational efficiency and high precision is a persistent pursuit. In this paper convolutional neural network (CNN) a kind of deep learning is…

Audio and Speech Processing · Electrical Eng. & Systems 2018-02-14 Wei Ma , Xun Liu

In this paper, the problem of extending narrowband multichannel sound source localization algorithms to the wideband case is addressed. The DOA estimation of narrowband algorithms is based on the estimate of inter-channel phase differences…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-24 Kainan Chen , Wenyu Jin , Bharadwaj Desikan

Recent advancements in LiDAR technology have significantly lowered costs and improved both its precision and resolution, thereby solidifying its role as a critical component in autonomous vehicle localization. Using sophisticated 3D…

Robotics · Computer Science 2024-07-12 Yuze Jiang , Ehsan Javanmardi , Manabu Tsukada , Hiroshi Esaki

This paper focuses on the problem of localising a transmitting mobile station (MS) using multiple cooperative base stations (BSs). There are two technical difficulties: one is the data association between intermediate parameters and…

Signal Processing · Electrical Eng. & Systems 2019-11-21 Hengyan Liu , Wei Dai , Yuan Shen

In this paper we propose a novel semantic localization algorithm that exploits multiple sensors and has precision on the order of a few centimeters. Our approach does not require detailed knowledge about the appearance of the world, and our…

This paper proposes SOLVR, a unified pipeline for learning based LiDAR-Visual re-localisation which performs place recognition and 6-DoF registration across sensor modalities. We propose a strategy to align the input sensor modalities by…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Joshua Knights , Sebastián Barbas Laina , Peyman Moghadam , Stefan Leutenegger

Spatial audio is an essential medium to audiences for 3D visual and auditory experience. However, the recording devices and techniques are expensive or inaccessible to the general public. In this work, we propose a self-supervised audio…

Sound · Computer Science 2019-05-15 Yu-Ding Lu , Hsin-Ying Lee , Hung-Yu Tseng , Ming-Hsuan Yang

This paper presents a two-step approach for narrowband source localization within reverberant rooms. The first step involves dereverberation by modeling the homogeneous component of the sound field by an equivalent decomposition of…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-26 Wei-Ting Lai , Lachlan Birnie , Thushara Abhayapala , Amy Bastine , Shaoheng Xu , Prasanga Samarasinghe

In this paper, a multi-modal data based semi-supervised learning (SSL) framework that jointly use channel state information (CSI) data and RGB images for vehicle positioning is designed. In particular, an outdoor positioning system where…

Signal Processing · Electrical Eng. & Systems 2024-10-29 Ouwen Huan , Yang Yang , Tao Luo , Mingzhe Chen

Sound event localization and detection (SELD) combines two subtasks: sound event detection (SED) and direction of arrival (DOA) estimation. SELD is usually tackled as an audio-only problem, but visual information has been recently included.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-15 Davide Berghi , Peipei Wu , Jinzheng Zhao , Wenwu Wang , Philip J. B. Jackson

It is challenging to train and deploy Transformer LMs for hybrid speech recognition 2nd pass re-ranking in low-resource languages due to (1) data scarcity in low-resource languages, (2) expensive computing costs for training and refreshing…

Computation and Language · Computer Science 2022-09-12 Li Miao , Jian Wu , Piyush Behre , Shuangyu Chang , Sarangarajan Parthasarathy

Majority of the existing robot navigation systems, which facilitate the use of laser range finders, sonar sensors or artificial landmarks, has the ability to locate itself in an unknown environment and then build a map of the corresponding…

Robotics · Computer Science 2014-12-22 Arjun B. Krishnan , Jayaram Kollipara

Sound source localization (SSL) determines the position of sound sources using multi-channel audio data. It is commonly used to improve speech enhancement and separation. Extracting spatial features is crucial for SSL, especially in…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-21 Yang Xiao , Rohan Kumar Das

This paper proposes an efficient method based on the steered-response power (SRP) technique for sound source localization using microphone arrays: the volumetric SRP (V-SRP). As compared to the SRP, by deploying a sparser volumetric grid,…

Place recognition is a challenging task in computer vision, crucial for enabling autonomous vehicles and robots to navigate previously visited environments. While significant progress has been made in learnable multimodal methods that…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Alexander Melekhin , Dmitry Yudin , Ilia Petryashin , Vitaly Bezuglyj

Despite there being clear evidence for top-down (e.g., attentional) effects in biological spatial hearing, relatively few machine hearing systems exploit top-down model-based knowledge in sound localisation. This paper addresses this issue…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-08 Ning Ma , Jose A. Gonzalez , Guy J. Brown