40 citations · 45 across the 7 of their papers we have counts for
8 papers
Time-frequency localization of bird calls in dense soundscapes
Simen Hexeberg, Fanghui Tong, Hari Vishnu +1
Passive acoustic monitoring enables large-scale wildlife observation. Most bioacoustic classifiers predict species presence in a time window without localizing vocalizations precis…
Passive Acoustic-based Composite Indices for Reef Health Monitoring in Noisy Tropical waters
Hari Vishnu, Yuen Min Too, Mandar Chitre +3
Passive acoustic monitoring offers the potential to enable long-term, spatially extensive assessments of coral reefs. To explore this approach, we deployed underwater acoustic reco…
Joint Source-Environment Adaptation of Data-Driven Underwater Acoustic Source Ranging Based on Model Uncertainty
Dariush Kari, Hari Vishnu, Andrew C. Singer
Adapting pre-trained deep learning models to new and unknown environments remains a major challenge in underwater acoustic localization. We show that although the performance of pr…
Image Compression Using Novel View Synthesis Priors
Luyuan Peng, Mandar Chitre, Hari Vishnu +4
Real-time visual feedback is essential for tetherless control of remotely operated vehicles, particularly during inspection and manipulation tasks. Though acoustic communication is…
Pose Estimation from Camera Images for Underwater Inspection
Luyuan Peng, Hari Vishnu, Mandar Chitre +4
High-precision localization is pivotal in underwater reinspection missions. Traditional localization methods like inertial navigation systems, Doppler velocity loggers, and acousti…
Improved Image-based Pose Regressor Models for Underwater Environments
Luyuan Peng, Hari Vishnu, Mandar Chitre +3
We investigate the performance of image-based pose regressor models in underwater environments for relocalization. Leveraging PoseNet and PoseLSTM, we regress a 6-degree-of-freedom…
Online Segmented Recursive Least-Squares for Multipath Doppler Tracking
Jae Won Choi, Girish Chowdhary, Andrew C. Singer +4
Underwater communication signals typically suffer from distortion due to motion-induced Doppler. Especially in shallow water environments, recovering the signal is challenging due…
A Semi-Blind Method for Localization of Underwater Acoustic Sources
Amir Weiss, Toros Arikan, Hari Vishnu +3
Underwater acoustic localization has traditionally been challenging due to the presence of unknown environmental structure and dynamic conditions. The problem is richer still when…