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Due to the unique characteristics of underwater environments, accurate 3D reconstruction of underwater objects poses a challenging problem in tasks such as underwater exploration and mapping. Traditional methods that rely on multiple sensor…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Zeyu Chen , Jingyi Tang , Gu Wang , Shengquan Li , Xinghui Li , Xiangyang Ji , Xiu Li

Owing to refraction, absorption, and scattering of light by suspended particles in water, raw underwater images suffer from low contrast, blurred details, and color distortion. These characteristics can significantly interfere with the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 Yuan Zhou , Kangming Yan

With the advantage of high mobility, Unmanned Aerial Vehicles (UAVs) are used to fuel numerous important applications in computer vision, delivering more efficiency and convenience than surveillance cameras with fixed camera angle, scale…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Dawei Du , Yuankai Qi , Hongyang Yu , Yifan Yang , Kaiwen Duan , Guorong Li , Weigang Zhang , Qingming Huang , Qi Tian

In this paper, we consider the problem of caging and eventual capture of an underwater entity using multiple Autonomous Underwater Vehicles (AUVs) in a 3D water volume We solve this problem both with and without taking bathymetry into…

Robotics · Computer Science 2020-08-24 Özer Özkahraman , Petter Ögren

A major challenge in text-video and text-audio retrieval is the lack of large-scale training data. This is unlike image-captioning, where datasets are in the order of millions of samples. To close this gap we propose a new video mining…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Arsha Nagrani , Paul Hongsuck Seo , Bryan Seybold , Anja Hauth , Santiago Manen , Chen Sun , Cordelia Schmid

It is natural to represent objects in terms of their parts. This has the potential to improve the performance of algorithms for object recognition and segmentation but can also help for downstream tasks like activity recognition. Research…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Ju He , Shuo Yang , Shaokang Yang , Adam Kortylewski , Xiaoding Yuan , Jie-Neng Chen , Shuai Liu , Cheng Yang , Qihang Yu , Alan Yuille

This paper discusses the technical challenges in maritime image processing and machine vision problems for video streams generated by cameras. Even well documented problems of horizon detection and registration of frames in a video are very…

Computer Vision and Pattern Recognition · Computer Science 2016-08-04 D. K. Prasad , C. K. Prasath , D. Rajan , L. Rachmawati , E. Rajabaly , C. Quek

This paper presents a deep-learned facial recognition method for underwater robots to identify scuba divers. Specifically, the proposed method is able to recognize divers underwater with faces heavily obscured by scuba masks and breathing…

Robotics · Computer Science 2020-11-20 Jungseok Hong , Sadman Sakib Enan , Christopher Morse , Junaed Sattar

This paper describes the development of a novel algorithm to tackle the problem of real-time video stabilization for unmanned aerial vehicles (UAVs). There are two main components in the algorithm: (1) By designing a suitable model for the…

Computer Vision and Pattern Recognition · Computer Science 2017-01-16 Anli Lim , Bharath Ramesh , Yue Yang , Cheng Xiang , Zhi Gao , Feng Lin

A visual single-object tracker is an indispensable component of underwater vehicles (UVs) in marine organism grasping tasks. Its accuracy and stability are imperative to guide the UVs to perform grasping behavior. Although single-object…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Yunfeng Li , Bo Wang , Ye Li , Zhuoyan Liu , Wei Huo , Yueming Li , Jian Cao

Research on diffusion model-based video generation has advanced rapidly. However, limitations in object fidelity and generation length hinder its practical applications. Additionally, specific domains like animated wallpapers require…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Fanyi Wang , Peng Liu , Haotian Hu , Dan Meng , Jingwen Su , Jinjin Xu , Yanhao Zhang , Xiaoming Ren , Zhiwang Zhang

We propose NeuFace, a 3D face mesh pseudo annotation method on videos via neural re-parameterized optimization. Despite the huge progress in 3D face reconstruction methods, generating reliable 3D face labels for in-the-wild dynamic videos…

Computer Vision and Pattern Recognition · Computer Science 2023-10-09 Kim Youwang , Lee Hyun , Kim Sung-Bin , Suekyeong Nam , Janghoon Ju , Tae-Hyun Oh

In recent years, significant progress has been made in the field of underwater image enhancement (UIE). However, its practical utility for high-level vision tasks, such as underwater object detection (UOD) in Autonomous Underwater Vehicles…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Junjie Wen , Jinqiang Cui , Benyun Zhao , Bingxin Han , Xuchen Liu , Zhi Gao , Ben M. Chen

Annotated datasets are critical for training neural networks for object detection, yet their manual creation is time- and labour-intensive, subjective to human error, and often limited in diversity. This challenge is particularly pronounced…

Background subtraction is a basic task in computer vision and video processing often applied as a pre-processing step for object tracking, people recognition, etc. Recently, a number of successful background-subtraction algorithms have been…

Computer Vision and Pattern Recognition · Computer Science 2020-01-15 M. Ozan Tezcan , Prakash Ishwar , Janusz Konrad

Multi-Object Tracking is one of the most important technologies in maritime computer vision. Our solution tries to explore Multi-Object Tracking in maritime Unmanned Aerial vehicles (UAVs) and Unmanned Surface Vehicles (USVs) usage…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Kaer Huang , Weitu Chong

The remarkable success of deep learning in various domains relies on the availability of large-scale annotated datasets. However, obtaining annotations is expensive and requires great effort, which is especially challenging for videos.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Madeline C. Schiappa , Yogesh S. Rawat , Mubarak Shah

Learning text-video embeddings usually requires a dataset of video clips with manually provided captions. However, such datasets are expensive and time consuming to create and therefore difficult to obtain on a large scale. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2019-08-01 Antoine Miech , Dimitri Zhukov , Jean-Baptiste Alayrac , Makarand Tapaswi , Ivan Laptev , Josef Sivic

The recognition of underwater audio plays a significant role in identifying a vessel while it is in motion. Underwater target recognition tasks have a wide range of applications in areas such as marine environmental protection, detection of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Zeyu Li , Suncheng Xiang , Tong Yu , Jingsheng Gao , Jiacheng Ruan , Yanping Hu , Ting Liu , Yuzhuo Fu

A plethora of state estimation techniques have appeared in the last decade using visual data, and more recently with added inertial data. Datasets typically used for evaluation include indoor and urban environments, where supporting videos…

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