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Depth estimation is a fundamental task in 3D computer vision, crucial for applications such as 3D reconstruction, free-viewpoint rendering, robotics, autonomous driving, and AR/VR technologies. Traditional methods relying on hardware…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Zhen Xu , Hongyu Zhou , Sida Peng , Haotong Lin , Haoyu Guo , Jiahao Shao , Peishan Yang , Qinglin Yang , Sheng Miao , Xingyi He , Yifan Wang , Yue Wang , Ruizhen Hu , Yiyi Liao , Xiaowei Zhou , Hujun Bao

Visual navigation and three-dimensional (3D) scene reconstruction are essential for robotics to interact with the surrounding environment. Large-scale scenes and critical camera motions are great challenges facing the research community to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Qi Cai , Lilian Zhang , Yuanxin Wu , Wenxian Yu , Dewen Hu

Indiscernible marine object counting encounters numerous challenges, including limited visibility in underwater scenes, mutual occlusion and overlap among objects, and the dynamic similarity in appearance, color, and texture between the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Chengzhi Ma , Kunqian Li , Shuaixin Liu , Han Mei

In this paper, we consider a problem inspired by the real-world need to identify the topographical features of ocean basins. Specifically we consider the problem of estimating the bottom impermeable boundary to an inviscid, incompressible,…

Analysis of PDEs · Mathematics 2023-08-22 Vishal Vasan , Manisha , Didier Auroux

Reconstruction of a continuous surface of two-dimensional manifold from its raw, discrete point cloud observation is a long-standing problem. The problem is technically ill-posed, and becomes more difficult considering that various sensing…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Zhangjin Huang , Yuxin Wen , Zihao Wang , Jinjuan Ren , Kui Jia

This work introduces VISY-REVE: a novel pipeline to validate image processing algorithms for Vision-Based Navigation. Traditional validation methods such as synthetic rendering or robotic testbed acquisition suffer from difficult setup and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Marius Neuhalfen , Jonathan Grzymisch , Manuel Sanchez-Gestido

Vision-based depth reconstruction is a challenging problem extensively studied in computer vision but still lacking universal solution. Reconstructing depth from single image is particularly valuable to mobile robotics as it can be embedded…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Andrey Bokovoy , Kirill Muravyev , Konstantin Yakovlev

Visual Odometry (VO) is fundamental to autonomous navigation, robotics, and augmented reality, with unsupervised approaches eliminating the need for expensive ground-truth labels. However, these methods struggle when dynamic objects violate…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Jingchao Xie , Oussema Dhaouadi , Weirong Chen , Johannes Meier , Jacques Kaiser , Daniel Cremers

Probing signal injection is a well-established technique to extract additional information from a weakly (or non) observable dynamical system. Using averaging theory, a framework to analyse such schemes for general nonlinear systems has…

Systems and Control · Computer Science 2019-11-20 Bowen Yi , Romeo Ortega , Houria Siguerdidjane , Juan E. Machado , Weidong Zhang

Vision-language Navigation (VLN) requires an agent to understand visual observations and language instructions to navigate in unseen environments. Most existing approaches rely on static scene assumptions and struggle to generalize in…

Robotics · Computer Science 2026-03-24 Xiangchen Liu , Hanghan Zheng , Jeil Jeong , Minsung Yoon , Lin Zhao , Zhide Zhong , Haoang Li , Sung-Eui Yoon

Underwater images are severely degraded by wavelength-dependent light absorption and scattering, resulting in color distortion, low contrast, and loss of fine details that hinder vision-based underwater applications. To address these…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Afrah Shaahid , Muzammil Behzad

Applications of unmanned aerial vehicle (UAV) in logistics, agricultural automation, urban management, and emergency response are highly dependent on oriented object detection (OOD) to enhance visual perception. Although existing datasets…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Kai Ye , Haidi Tang , Bowen Liu , Pingyang Dai , Liujuan Cao , Rongrong Ji

Invisible watermarking has become a critical mechanism for authenticating AI-generated image content, with major platforms deploying watermarking schemes at scale. However, evaluating the vulnerability of these schemes against sophisticated…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Fahad Shamshad , Nils Lukas , Karthik Nandakumar

Effective monitoring of underwater ecosystems is crucial for tracking environmental changes, guiding conservation efforts, and ensuring long-term ecosystem health. However, automating underwater ecosystem management with robotic platforms…

Robotics · Computer Science 2025-12-03 Beverley Gorry , Tobias Fischer , Michael Milford , Alejandro Fontan

Sound propagation in the ocean is considered. We demonstrate a novel algorithm for full wavefield reconstruction using pointwise measurements by means of a vertical array. The algorithm is based on the so-called discrete variable…

Signal Processing · Electrical Eng. & Systems 2021-03-11 Denis V. Makarov , Pavel S. Petrov

Understanding subsurface ocean dynamics is essential for quantifying oceanic heat and mass transport, but direct observations at depth remain sparse due to logistical and technological constraints. In contrast, satellite missions provide…

While data has certainly taken the center stage in computer vision in recent years, it can still be difficult to obtain in certain scenarios. In particular, acquiring ground truth 3D shapes of objects pictured in 2D images remains a…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Joao Carreira , Sara Vicente , Lourdes Agapito , Jorge Batista

The ocean is warming and acidifying, increasing the risk of mass mortality events for temperature-sensitive shellfish such as oysters. This motivates the development of long-term monitoring systems. However, human labor is costly and…

Rapid visualization of large-scale spatial vector data is a long-standing challenge in Geographic Information Science. In existing methods, the computation overheads grow rapidly with data volumes, leading to the incapability of providing…

Graphics · Computer Science 2021-01-26 Mengyu Ma , Ye Wu , Xue Ouyang , Luo Chen , Jun Li , Ning Jing

The history of computing started with analog computers consisting of physical devices performing specialized functions such as predicting the trajectory of cannon balls. In modern times, this idea has been extended, for example, to…

Image and Video Processing · Electrical Eng. & Systems 2022-08-29 Callen MacPhee , Bahram Jalali