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To overcome the constraints of the underwater environment and improve the accuracy and robustness of underwater target detection models, this paper develops a specialized dataset for underwater target detection and proposes an efficient…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Chang Liu

Weakly-supervised semantic segmentation under image tags supervision is a challenging task as it directly associates high-level semantic to low-level appearance. To bridge this gap, in this paper, we propose an iterative bottom-up and…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Xiang Wang , Shaodi You , Xi Li , Huimin Ma

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

Majority of deep learning methods utilize vanilla convolution for enhancing underwater images. While vanilla convolution excels in capturing local features and learning the spatial hierarchical structure of images, it tends to smooth input…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Song Zhang , Daoliang Li , Ran Zhao

Unsupervised semantic segmentation aims to obtain high-level semantic representation on low-level visual features without manual annotations. Most existing methods are bottom-up approaches that try to group pixels into regions based on…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Zhaoyuan Yin , Pichao Wang , Fan Wang , Xianzhe Xu , Hanling Zhang , Hao Li , Rong Jin

It plays a fundamental role to compactly represent the visual information towards the optimization of the ultimate utility in myriad visual data centered applications. With numerous approaches proposed to efficiently compress the texture…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Shurun Wang , Shiqi Wang , Wenhan Yang , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

Fully convolutional networks (FCN) has significantly improved the performance of many pixel-labeling tasks, such as semantic segmentation and depth estimation. However, it still remains non-trivial to thoroughly utilize the multi-level…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Yunzhi Zhuge , Pingping Zhang , Huchuan Lu

We aim to provide a computationally cheap yet effective approach for fine-grained image classification (FGIC) in this letter. Unlike previous methods that rely on complex part localization modules, our approach learns fine-grained features…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Wei Luo , Hengmin Zhang , Jun Li , Xiu-Shen Wei

Fine-grained image recognition is a longstanding computer vision challenge that focuses on differentiating objects belonging to multiple subordinate categories within the same meta-category. Since images belonging to the same meta-category…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Yifan Pu , Yizeng Han , Yulin Wang , Junlan Feng , Chao Deng , Gao Huang

Due to the absorption and scattering effects of the water, underwater images tend to suffer from many severe problems, such as low contrast, grayed out colors and blurring content. To improve the visual quality of underwater images, we…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Hui Li , Xi Yang , ZhenMing Li , TianLun Zhang

The semantic representation of deep features is essential for image context understanding, and effective fusion of features with different semantic representations can significantly improve the model's performance on salient object…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Han Sun , Jun Cen , Ningzhong Liu , Dong Liang , Huiyu Zhou

Existing deep image watermarking methods follow a fixed embedding-distortion-extraction pipeline, where the embedder and extractor are weakly coupled through a final loss and optimized in isolation. This design lacks explicit collaboration,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Fei Ge , Ying Huang , Jie Liu , Guixuan Zhang , Zhi Zeng , Shuwu Zhang , Hu Guan

Multi-modality image fusion aims at fusing modality-specific (complementarity) and modality-shared (correlation) information from multiple source images. To tackle the problem of the neglect of inter-feature relationships, high-frequency…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Xiaoli Zhang , Liying Wang , Libo Zhao , Xiongfei Li , Siwei Ma

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

Underwater optical images inevitably suffer from various degradation factors such as blurring, low contrast, and color distortion, which hinder the accuracy of object detection tasks. Due to the lack of paired underwater/clean images, most…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Bin Li , Li Li , Zhenwei Zhang , Yuping Duan

The trade-off between feature representation power and spatial localization accuracy is crucial for the dense classification/semantic segmentation of aerial images. High-level features extracted from the late layers of a neural network are…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Lei Ding , Hao Tang , Lorenzo Bruzzone

Despite that convolutional neural networks (CNN) have recently demonstrated high-quality reconstruction for single-image super-resolution (SR), recovering natural and realistic texture remains a challenging problem. In this paper, we show…

Computer Vision and Pattern Recognition · Computer Science 2018-04-10 Xintao Wang , Ke Yu , Chao Dong , Chen Change Loy

Underwater acoustic target recognition is critical for maritime applications, yet it faces challenges arising from the complex and diverse nature of ship-radiated noise. To address these issues, we propose a robust deep learning-based…

Signal Processing · Electrical Eng. & Systems 2026-05-22 Jiaping Yu , Shefeng Yan , Linlin Mao , Zeping Sui , Chunjin Jiang

Assigning geospatial objects with specific categories at the pixel level is a fundamental task in remote sensing image analysis. Along with rapid development in sensor technologies, remotely sensed images can be captured at multiple spatial…

Computer Vision and Pattern Recognition · Computer Science 2021-11-05 Libo Wang , Ce Zhang , Rui Li , Chenxi Duan , Xiaoliang Meng , Peter M. Atkinson

Depth information plays a crucial role in autonomous systems for environmental perception and robot state estimation. With the rapid development of deep neural network technology, depth estimation has been extensively studied and shown…

Robotics · Computer Science 2024-11-11 Quang Truong Nguyen , Thanh Nguyen Canh , Xiem HoangVan