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Benthic habitat mapping is fundamental for understanding marine ecosystems, guiding conservation efforts, and supporting sustainable resource management. Yet, the scarcity of large, annotated datasets limits the development and benchmarking…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Hayat Rajani , Valerio Franchi , Borja Martinez-Clavel Valles , Raimon Ramos , Rafael Garcia , Nuno Gracias

3D modeling from satellite imagery is essential in areas of environmental science, urban planning, agriculture, and disaster response. However, traditional 3D modeling techniques face unique challenges in the remote sensing context,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Nikhil Behari , Akshat Dave , Kushagra Tiwary , William Yang , Ramesh Raskar

Enhancing forward-looking sonar images is critical for accurate underwater target detection. Current deep learning methods mainly rely on supervised training with simulated data, but the difficulty in obtaining high-quality real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Zhisheng Zhang , Peng Zhang , Fengxiang Wang , Liangli Ma , Fuchun Sun

We propose a novel image sampling method for differentiable image transformation in deep neural networks. The sampling schemes currently used in deep learning, such as Spatial Transformer Networks, rely on bilinear interpolation, which…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Wei Jiang , Weiwei Sun , Andrea Tagliasacchi , Eduard Trulls , Kwang Moo Yi

Three-dimensional segmentation in magnetic resonance images (MRI), which reflects the true shape of the objects, is challenging since high-resolution isotropic MRIs are rare and typical MRIs are anisotropic, with the out-of-plane dimension…

Image and Video Processing · Electrical Eng. & Systems 2023-03-15 Hanxue Gu , Hongyu He , Roy Colglazier , Jordan Axelrod , Robert French , Maciej A Mazurowski

Ocean exploration using acoustical 3D imaging is gaining popularity as it provides information about the 3D geometry of the targets even under mild turbid conditions. A major challenge in underwater 3D imaging is the high cost of the planar…

Signal Processing · Electrical Eng. & Systems 2024-11-15 Mimisha M Menakath , Mahesh Raveendranatha Panicker , Hareesh G

We propose a scalable neural network framework to reconstruct the 3D mesh of a human body from multi-view images, in the subspace of the SMPL model. Use of multi-view images can significantly reduce the projection ambiguity of the problem,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Junbang Liang , Ming C. Lin

Neural mapping schemes have become appealing approaches to deliver gap-free satellite-derived products for sea surface tracers. The generalization performance of these learning-based approaches naturally arises as a key challenge. This is…

Image and Video Processing · Electrical Eng. & Systems 2025-11-27 Thi Thuy Nga Nguyen , Clément Dorffer , Frédéric Jourdin , Ronan Fablet

Developing deep learning techniques for geometric data is an active and fruitful research area. This paper tackles the problem of sphere-type surface learning by developing a novel surface-to-image representation. Using this representation…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Niv Haim , Nimrod Segol , Heli Ben-Hamu , Haggai Maron , Yaron Lipman

In radio astronomy, the science output of a telescope is often limited by computational resources. This is especially true for transient and technosignature surveys that need to search high-resolution data across a large parameter space.…

Instrumentation and Methods for Astrophysics · Physics 2024-04-11 Danny C. Price

The recent neural surface reconstruction by volume rendering approaches have made much progress by achieving impressive surface reconstruction quality, but are still limited to dense and highly accurate posed views. To overcome such…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Shi-Sheng Huang , Zi-Xin Zou , Yi-Chi Zhang , Hua Huang

Frequency estimation is a fundamental problem in signal processing, with applications in radar imaging, underwater acoustics, seismic imaging, and spectroscopy. The goal is to estimate the frequency of each component in a multisinusoidal…

Machine Learning · Computer Science 2021-02-04 Gautier Izacard , Sreyas Mohan , Carlos Fernandez-Granda

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

Due to the irregular space-time sampling of sea surface observations, the reconstruction of sea surface dynamics is a challenging inverse problem. While satellite altimetry provides a direct observation of the sea surface height (SSH),…

Image and Video Processing · Electrical Eng. & Systems 2023-07-19 Ronan Fablet , Quentin Febvre , Bertrand Chapron

Weakly supervised semantic segmentation (WSSS) aims to produce pixel-wise class predictions with only image-level labels for training. To this end, previous methods adopt the common pipeline: they generate pseudo masks from class activation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Sungpil Kho , Pilhyeon Lee , Wonyoung Lee , Minsong Ki , Hyeran Byun

There is a significant need for precise and reliable forecasting of the far-field noise emanating from shipping vessels. Conventional full-order models based on the Navier-Stokes equations are unsuitable, and sophisticated model reduction…

Machine Learning · Computer Science 2024-04-15 Indu Kant Deo , Akash Venkateshwaran , Rajeev K. Jaiman

Underwater imaging is a critical task performed by marine robots for a wide range of applications including aquaculture, marine infrastructure inspection, and environmental monitoring. However, water column effects, such as attenuation and…

Underwater salient object detection (USOD) has attracted increasing attention for underwater visual scene understanding and vision-guided robotic applications. However, existing USOD methods still struggle with underwater image…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Lin Hong , Chenhui Wang , Linan Deng , Yuning Cui , Yu Zhang , Xin Wang , Bojian Zhang , Wenqi Ren , Xingchen Yang , Fumin Zhang

In this paper, we propose a novel approach for saliency detection for seismic applications using 3D-FFT local spectra and multi-dimensional plane projections. We develop a projection scheme by dividing a 3D-FFT local spectrum of a data…

Computer Vision and Pattern Recognition · Computer Science 2019-02-01 Muhammad Amir Shafiq , Zhiling Long , Tariq Alshawi , Ghassan AlRegib

Huge imbalance of different scenes' sample numbers seriously reduces Synthetic Aperture Radar (SAR) ship detection accuracy. Thus, to solve this problem, this letter proposes a Balance Scene Learning Mechanism (BSLM) for offshore and…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Tianwen Zhang , Xiaoling Zhang , Jun Shi , Shunjun Wei , Jianguo Wang , Jianwei Li , Hao Su , Yue Zhou