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Since coral reef ecosystems face threats from human activities and climate change, coral conservation programs are implemented worldwide. Monitoring coral health provides references for guiding conservation activities. However, current…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Xinlei Shao , Hongruixuan Chen , Kirsty Magson , Jiaqi Wang , Jian Song , Jundong Chen , Jun Sasaki

Oceans are the essential lifeblood of the Earth: they provide over 70% of the oxygen and over 97% of the water. Plankton and corals are two of the most fundamental components of ocean ecosystems, the former due to their function at many…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Alessandra Lumini , Loris Nanni , Gianluca Maguolo

Obtaining pixel-level annotations over large spatial extents remains a major bottleneck for deploying machine learning in ecological applications. Here we present a multi-scale weakly supervised semantic segmentation (WSSS) framework that…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Matteo Contini , Victor Illien , Sylvain Poulain , Serge Bernard , Julien Barde , Sylvain Bonhommeau , Alexis Joly

Coral bleaching is a major concern for marine ecosystems; more than half of the world's coral reefs have either bleached or died over the past three decades. Increasing sea surface temperatures, along with various spatiotemporal…

Applications · Statistics 2025-11-18 Soham Sarkar , Arnab Hazra

Convolutional neural networks (CNN) have been used efficiently in several fields, including environmental challenges. In fact, CNN can help with the monitoring of marine litter, which has become a worldwide problem. UAVs have higher…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Ousmane Youme , Jean Marie Dembélé , Eugene C. Ezin , Christophe Cambier

Image restoration is a challenging ill-posed problem which also has been a long-standing issue. In the past few years, the convolution neural networks (CNNs) almost dominated the computer vision and had achieved considerable success in…

Image and Video Processing · Electrical Eng. & Systems 2023-01-18 Chi-Mao Fan , Tsung-Jung Liu , Kuan-Hsien Liu

Distinguishing among different marine benthic habitat characteristics is of key importance in a wide set of seabed operations ranging from installations of oil rigs to laying networks of cables and monitoring the impact of humans on marine…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Hayat Rajani , Nuno Gracias , Rafael Garcia

Insect monitoring is crucial for understanding the consequences of rapid ecological changes, but taxa identification currently requires tedious manual expert work and cannot be scaled-up efficiently. Deep convolutional neural networks…

Computer Vision and Pattern Recognition · Computer Science 2021-01-07 Fahad Sohrab , Jenni Raitoharju

Underwater Image Restoration (UIR) remains a challenging task in computer vision due to the complex degradation of images in underwater environments. While recent approaches have leveraged various deep learning techniques, including…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Xiaojiao Guo , Yihang Dong , Xuhang Chen , Weiwen Chen , Zimeng Li , FuChen Zheng , Chi-Man Pun

Underwater imaging is essential for marine exploration, environmental monitoring, and infrastructure inspection. However, water causes severe image degradation through wavelength-dependent absorption and scattering, resulting in color…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Md. Mahbub Hasan Akash , Aria Tasnim Mridula , Sheekar Banerjee , Ishtiak Al Mamoon

Coral reef imagery offers critical data for monitoring ecosystem health, in particular as the ease of image datasets continues to rapidly expand. Whilst semi-automated analytical platforms for reef imagery are becoming more available, the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Yuk-Kwan Wong , Ziqiang Zheng , Mingzhe Zhang , David Suggett , Sai-Kit Yeung

In this paper, we apply the scattering transform (ST), a nonlinear map based off of a convolutional neural network (CNN), to classification of underwater objects using sonar signals. The ST formalizes the observation that the filters…

Computer Vision and Pattern Recognition · Computer Science 2017-09-05 Naoki Saito , David S. Weber

Image quality assessment (IQA) is an important research topic for understanding and improving visual experience. The current state-of-the-art IQA methods are based on convolutional neural networks (CNNs). The performance of CNN-based models…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Junjie Ke , Qifei Wang , Yilin Wang , Peyman Milanfar , Feng Yang

Coral aquaculture for reef restoration requires accurate and continuous spawn counting for resource distribution and larval health monitoring, but current methods are labor-intensive and represent a critical bottleneck in the coral…

The recognition of coral species based on underwater texture images pose a significant difficulty for machine learning algorithms, due to the three following challenges embedded in the nature of this data: 1) datasets do not include…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Anabel Gómez-Ríos , Siham Tabik , Julián Luengo , ASM Shihavuddin , Bartosz Krawczyk , Francisco Herrera

Autonomous Underwater Vehicles (AUVs) are increasingly being used to support scientific research and monitoring studies. One such application is in benthic habitat mapping where these vehicles collect seafloor imagery that complements…

Robotics · Computer Science 2020-06-23 Jackson Shields , Oscar Pizarro , Stefan B. Williams

Underwater images often exhibit poor quality, distorted color balance and low contrast due to the complex and intricate interplay of light, water, and objects. Despite the significant contributions of previous underwater enhancement…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Weiwen Chen , Yingtie Lei , Shenghong Luo , Ziyang Zhou , Mingxian Li , Chi-Man Pun

Hermit crabs play a crucial role in coastal ecosystems by dispersing seeds, cleaning up debris, and disturbing soil. They serve as vital indicators of marine environmental health, responding to climate change and pollution. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Fan Zhao , Yijia Chen , Dianhan Xi , Yongying Liu , Jiaqi Wang , Shigeru Tabeta , Katsunori Mizuno

Underwater surveys provide long-term data for informing management strategies, monitoring coral reef health, and estimating blue carbon stocks. Advances in broad-scale survey methods, such as robotic underwater vehicles, have increased the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Scarlett Raine , Frederic Maire , Niko Suenderhauf , Tobias Fischer

Underwater image understanding is crucial for both submarine navigation and seabed exploration. However, the low illumination in underwater environments degrades the imaging quality, which in turn seriously deteriorates the performance of…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Xin Zuo , Jiaran Jiang , Jifeng Shen , Wankou Yang