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Underwater visual imaging is crucial for marine engineering, but it suffers from low contrast, blurriness, and color degradation, which hinders downstream analysis. Existing underwater image enhancement methods often treat the haze and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Chengqin Wu , Shuai Yu , Tuyan Luo , Qiuhua Rao , Qingson Hu , Jingxiang Xu , Lijun Zhang

Quality degradation is observed in underwater images due to the effects of light refraction and absorption by water, leading to issues like color cast, haziness, and limited visibility. This degradation negatively affects the performance of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 MD Raqib Khan , Anshul Negi , Ashutosh Kulkarni , Shruti S. Phutke , Santosh Kumar Vipparthi , Subrahmanyam Murala

Underwater environments pose significant challenges due to the selective absorption and scattering of light by water, which affects image clarity, contrast, and color fidelity. To overcome these, we introduce OceanLens, a method that models…

Image and Video Processing · Electrical Eng. & Systems 2024-11-21 Rajini Makam , Dhatri Shankari T M , Sharanya Patil , Suresh Sundram

Underwater image enhancement has attracted much attention due to the rise of marine resource development in recent years. Benefit from the powerful representation capabilities of Convolution Neural Networks(CNNs), multiple underwater image…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Yudong Wang , Jichang Guo , Huan Gao , Huihui Yue

In this paper, we present a conditional generative adversarial network-based model for real-time underwater image enhancement. To supervise the adversarial training, we formulate an objective function that evaluates the perceptual image…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Md Jahidul Islam , Youya Xia , Junaed Sattar

Robust vision restoration of underwater images remains a challenge. Owing to the lack of well-matched underwater and in-air images, unsupervised methods based on the cyclic generative adversarial framework have been widely investigated in…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Shuaizheng Yan , Xingyu Chen , Zhengxing Wu , Min Tan , Junzhi Yu

Compressive imaging is an emerging application of compressed sensing, devoted to acquisition, encoding and reconstruction of images using random projections as measurements. In this paper we propose a novel method to provide a scalable…

Information Theory · Computer Science 2013-10-07 Diego Valsesia , Enrico Magli

Underwater imagery is often compromised by factors such as color distortion and low contrast, posing challenges for high-level vision tasks. Recent underwater image restoration (UIR) methods either analyze the input image at full…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Alik Pramanick , Arijit Sur , V. Vijaya Saradhi

Background: Underwater images, in general, suffer from low contrast and high color distortions due to the non-uniform attenuation of the light as it propagates through the water. In addition, the degree of attenuation varies with the…

Image and Video Processing · Electrical Eng. & Systems 2022-01-20 Prasen Kumar Sharma , Ira Bisht , Arijit Sur

The exploration of underwater environments is essential for applications such as biological research, archaeology, and infrastructure maintenanceHowever, underwater imaging is challenging due to the waters unique properties, including…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Ozer Can Devecioglu , Serkan Kiranyaz , Turker Ince , Moncef Gabbouj

Underwater images taken from autonomous underwater vehicles (AUV's) often suffer from low light, high turbidity, poor contrast, motion-blur and excessive light scattering and hence require image enhancement techniques for object…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Sreeraj Rajan Warrier , D Sri Harshavardhan Reddy , Sriya Bada , Rohith Achampeta , Sebastian Uppapalli , Jayasri Dontabhaktuni

In this paper, we study the importance of pre-training for the generalization capability in the color constancy problem. We propose two novel approaches based on convolutional autoencoders: an unsupervised pre-training algorithm using a…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Firas Laakom , Jenni Raitoharju , Alexandros Iosifidis , Jarno Nikkanen , Moncef Gabbouj

Underwater imaging plays a pivotal role in marine exploration and ecological monitoring. However, it faces significant challenges of limited transmission bandwidth and severe distortion in the aquatic environment. In this work, to achieve…

Image and Video Processing · Electrical Eng. & Systems 2025-09-30 Linwei Zhu , Junhao Zhu , Xu Zhang , Huan Zhang , Ye Li , Runmin Cong , Sam Kwong

The two main impediments to continual learning are catastrophic forgetting and memory limitations on the storage of data. To cope with these challenges, we propose a novel, cognitively-inspired approach which trains autoencoders with Neural…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Ali Ayub , Alan R. Wagner

Due to the uneven absorption of different light wavelengths in aquatic environments, underwater images suffer from low visibility and clear color deviations. With the advancement of autonomous underwater vehicles, extensive research has…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Zengxi Zhang , Zeru Shi , Zhiying Jiang , Jinyuan Liu

We present a novel underwater image enhancement method termed SCNet to improve the image quality meanwhile cope with the degradation diversity caused by the water. SCNet is based on normalization schemes across both spatial and channel…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Zhenqi Fu , Xiaopeng Lin , Wu Wang , Yue Huang , Xinghao Ding

Underwater imagery often exhibits distorted coloration as a result of light-water interactions, which complicates the study of benthic environments in marine biology and geography. In this research, we propose an algorithm to restore the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Tianyi Zhang , Matthew Johnson-Roberson

Underwater image enhancement is such an important low-level vision task with many applications that numerous algorithms have been proposed in recent years. These algorithms developed upon various assumptions demonstrate successes from…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Risheng Liu , Xin Fan , Ming Zhu , Minjun Hou , Zhongxuan Luo

The increasing demand for high image quality in mobile devices brings forth the need for better computational enhancement techniques, and image denoising in particular. At the same time, the images captured by these devices can be…

Computer Vision and Pattern Recognition · Computer Science 2017-03-01 Tal Remez , Or Litany , Raja Giryes , Alex M. Bronstein

Handling various objects with different colors is a significant challenge for image colorization techniques. Thus, for complex real-world scenes, the existing image colorization algorithms often fail to maintain color consistency. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Subhankar Ghosh , Saumik Bhattacharya , Prasun Roy , Umapada Pal , Michael Blumenstein