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Recently deep convolutional neural networks have achieved significant success in salient object detection. However, existing state-of-the-art methods require high-end GPUs to achieve real-time performance, which makes them hard to adapt to…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Haofeng Li , Guanbin Li , Binbin Yang , Guanqi Chen , Liang Lin , Yizhou Yu

Localizing a moving sound source in the real world involves determining its direction-of-arrival (DOA) and distance relative to a microphone. Advancements in DOA estimation have been facilitated by data-driven methods optimized with large…

Sound · Computer Science 2023-09-19 Saksham Singh Kushwaha , Iran R. Roman , Magdalena Fuentes , Juan Pablo Bello

The Low frequency analysis and recording (LOFAR) spectrum is one of the key features of the under water target, which can be used for underwater target recognition. However, the underwater environment noise is complicated and the…

Signal Processing · Electrical Eng. & Systems 2021-04-27 Jie Chen , Jie Liu , Chang Liu , Jian Zhang , Bing Han

Current Deep Learning methods for environment segmentation and velocity estimation rely on Convolutional Recurrent Neural Networks to exploit spatio-temporal relationships within obtained sensor data. These approaches derive scene dynamics…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Marco Braun , Moritz Luszek , Mirko Meuter , Dominic Spata , Kevin Kollek , Anton Kummert

Accurate tracking of underwater acoustic sources is critical for a variety of marine applications, yet remains a challenging task due to communication constraints and environmental uncertainties. In this regard, this paper addresses the…

Systems and Control · Electrical Eng. & Systems 2025-12-02 Andrea Tiranti , Francesco Wanderlingh , Enrico Simetti , Marco Baglietto , Giovanni Indiveri , Antonio Pascoal

Underwater acoustic environment estimation is a challenging but important task for remote sensing scenarios. Current estimation methods require high signal strength and a solution to the fragile echo labeling problem to be effective. In…

Sound source localization (SSL) adds a spatial dimension to auditory perception, allowing a system to pinpoint the origin of speech, machinery noise, warning tones, or other acoustic events, capabilities that facilitate robot navigation,…

Robotics · Computer Science 2025-08-29 Reza Jalayer , Masoud Jalayer , Amirali Baniasadi

Place Recognition enables the estimation of a globally consistent map and trajectory by providing non-local constraints in Simultaneous Localisation and Mapping (SLAM). This paper presents Locus, a novel place recognition method using 3D…

The direction of arrival (DOA) estimation algorithms are crucial in localizing acoustic sources. Traditional localization methods rely on block-level processing to extract the directional information from multiple measurements processed…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-15 Ruchi Pandey , Santosh Nannuru

Pathfinding in hospitals is challenging for patients, visitors, and even employees. Many people have experienced getting lost due to lack of clear guidance, large footprint of hospitals, and confusing array of hospital wings. In this paper,…

Information Retrieval · Computer Science 2017-11-08 Hojjat Salehinejad , Joseph Barfett , Parham Aarabi , Shahrokh Valaee , Errol Colak , Bruce Gray , Tim Dowdell

Deep learning based methods hold state-of-the-art results in image denoising, but remain difficult to interpret due to their construction from poorly understood building blocks such as batch-normalization, residual learning, and feature…

Image and Video Processing · Electrical Eng. & Systems 2021-03-09 Nikola Janjušević , Amirhossein Khalilian-Gourtani , Yao Wang

A challenge in marine bioacoustic analysis is the detection of animal signals, like calls, whistles and clicks, for behavioral studies. Manual labeling is too time-consuming to process sufficient data to get reasonable results. Thus, an…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-23 Christopher Hauer

Underwater environments pose significant challenges for visual Simultaneous Localization and Mapping (SLAM) systems due to limited visibility, inadequate illumination, and sporadic loss of structural features in images. Addressing these…

Robotics · Computer Science 2025-03-17 Shida Xu , Kaicheng Zhang , Sen Wang

Automotive mmWave radar has been widely used in the automotive industry due to its small size, low cost, and complementary advantages to optical sensors (e.g., cameras, LiDAR, etc.) in adverse weathers, e.g., fog, raining, and snowing. On…

Robotics · Computer Science 2022-02-23 Pengen Gao , Shengkai Zhang , Wei Wang , Chris Xiaoxuan Lu

We present DeepNav, a Convolutional Neural Network (CNN) based algorithm for navigating large cities using locally visible street-view images. The DeepNav agent learns to reach its destination quickly by making the correct navigation…

Computer Vision and Pattern Recognition · Computer Science 2017-05-23 Samarth Brahmbhatt , James Hays

Underwater docking is critical to enable the persistent operation of Autonomous Underwater Vehicles (AUVs). For this, the AUV must be capable of detecting and localizing the docking station, which is complex due to the highly dynamic…

Robotics · Computer Science 2024-10-28 Jalil Chavez-Galaviz , Jianwen Li , Matthew Bergman , Miras Mengdibayev , Nina Mahmoudian

Deep Learning based techniques have been adopted with precision to solve a lot of standard computer vision problems, some of which are image classification, object detection and segmentation. Despite the widespread success of these…

Computer Vision and Pattern Recognition · Computer Science 2016-11-21 Vikram Mohanty , Shubh Agrawal , Shaswat Datta , Arna Ghosh , Vishnu Dutt Sharma , Debashish Chakravarty

With the continuous development of underwater vision technology, more and more remote sensing images could be obtained. In the underwater scene, sonar sensors are currently the most effective remote perception devices, and the sonar images…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Xiaoteng Zhou , Changli Yu , Xin Yuan , Yi Wu , Haijun Feng , Citong Luo

Inferring the depth of images is a fundamental inverse problem within the field of Computer Vision since depth information is obtained through 2D images, which can be generated from infinite possibilities of observed real scenes. Benefiting…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Raul de Queiroz Mendes , Eduardo Godinho Ribeiro , Nicolas dos Santos Rosa , Valdir Grassi

For signal processing related to localization technologies, non line of sight (NLOS) multipaths have a significant impact on the localization error level. This study proposes a localization correction method based on convolution neural…

Signal Processing · Electrical Eng. & Systems 2024-02-01 Yiwen Chen , Tianqi Xiang , Xi Chen , Xin Zhang