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Underwater litter is widely spread across aquatic environments such as lakes, rivers, and oceans, significantly impacting natural ecosystems. Current monitoring technologies for detecting underwater litter face limitations in survey…

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

Single image super-resolution (SISR) is a very popular topic nowadays, which has both research value and practical value. In daily life, we crop a large image into sub-images to do super-resolution and then merge them together. Although…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Junyu , Wang , Rong Song

An algorithm is proposed for the segmentation of image into multiple levels using mean and standard deviation in the wavelet domain. The procedure provides for variable size segmentation with bigger block size around the mean, and having…

Due to the significant information loss in low-resolution (LR) images, it has become extremely challenging to further advance the state-of-the-art of single image super-resolution (SISR). Reference-based super-resolution (RefSR), on the…

Computer Vision and Pattern Recognition · Computer Science 2019-03-11 Zhifei Zhang , Zhaowen Wang , Zhe Lin , Hairong Qi

Recently, satellites with high temporal resolution have fostered wide attention in various practical applications. Due to limitations of bandwidth and hardware cost, however, the spatial resolution of such satellites is considerably low,…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Jiaming Wang , Zhenfeng Shao , Tao Lu , Xiao Huang , Ruiqian Zhang , Yu Wang

Recent efforts have witnessed remarkable progress in Satellite Video Super-Resolution (SVSR). However, most SVSR methods usually assume the degradation is fixed and known, e.g., bicubic downsampling, which makes them vulnerable in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Yi Xiao , Qiangqiang Yuan , Qiang Zhang , Liangpei Zhang

Underwater image restoration and enhancement are crucial for correcting color distortion and restoring image details, thereby establishing a fundamental basis for subsequent underwater visual tasks. However, current deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yufeng Tian , Yifan Chen , Zhe Sun , Libang Chen , Mingyu Dou , Jijun Lu , Ye Zheng , Xuelong Li

In machine learning based single image super-resolution, the degradation model is embedded in training data generation. However, most existing satellite image super-resolution methods use a simple down-sampling model with a fixed kernel to…

Computer Vision and Pattern Recognition · Computer Science 2020-02-27 Xiang Zhu , Hossein Talebi , Xinwei Shi , Feng Yang , Peyman Milanfar

In this paper, we propose GuideSR, a novel single-step diffusion-based image super-resolution (SR) model specifically designed to enhance image fidelity. Existing diffusion-based SR approaches typically adapt pre-trained generative models…

Image and Video Processing · Electrical Eng. & Systems 2025-05-02 Aditya Arora , Zhengzhong Tu , Yufei Wang , Ruizheng Bai , Jian Wang , Sizhuo Ma

The temporal and spatial resolution of rainfall data is crucial for environmental modeling studies in which its variability in space and time is considered as a primary factor. Rainfall products from different remote sensing instruments…

Computer Vision and Pattern Recognition · Computer Science 2022-09-23 Muhammed Sit , Bong-Chul Seo , Ibrahim Demir

Image Super-Resolution (SR) provides a promising technique to enhance the image quality of low-resolution optical sensors, facilitating better-performing target detection and autonomous navigation in a wide range of robotics applications.…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Fan Wang , Jiangxin Yang , Yanlong Cao , Yanpeng Cao , Michael Ying Yang

Recognition of features in satellite imagery (forests, swimming pools, etc.) depends strongly on the spatial scale of the concept and therefore the resolution of the images. This poses two challenges: Which resolution is best suited for…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Shreelekha Revankar , Cheng Perng Phoo , Utkarsh Mall , Bharath Hariharan , Kavita Bala

Where are the Earth's streams flowing right now? Inland surface waters expand with floods and contract with droughts, so there is no one map of our streams. Current satellite approaches are limited to monthly observations that map only the…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Dolores Garcia , Gonzalo Mateo-Garcia , Hannes Bernhardt , Ron Hagensieker , Ignacio G. Lopez Francos , Jonathan Stock , Guy Schumann , Kevin Dobbs , Freddie Kalaitzis

Single image super-resolution (SISR), which aims to reconstruct a high-resolution (HR) image from a low-resolution (LR) observation, has been an active research topic in the area of image processing in recent decades. Particularly, deep…

Image and Video Processing · Electrical Eng. & Systems 2021-03-04 Honggang Chen , Xiaohai He , Linbo Qing , Yuanyuan Wu , Chao Ren , Ce Zhu

Neural Radiance Fields (NeRFs) have demonstrated remarkable capabilities in 3D reconstruction and novel view synthesis. However, most existing NeRF frameworks require complete retraining when new views are introduced incrementally, limiting…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Kriti Ghosh , Devjyoti Chakraborty , Lakshmish Ramaswamy , Suchendra M. Bhandarkar , In Kee Kim , Nancy O'Hare , Deepak Mishra

Despite the remarkable progress, weakly supervised segmentation approaches are still inferior to their fully supervised counterparts. We obverse the performance gap mainly comes from their limitation on learning to produce high-quality…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Yunchao Wei , Huaxin Xiao , Honghui Shi , Zequn Jie , Jiashi Feng , Thomas S. Huang

In an era where maritime infrastructures are crucial, advanced situational awareness solutions are increasingly important. The use of optical camera systems can allow real-time usage of maritime footage. This thesis presents an…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Borja Carrillo Perez

This work discusses how to choose performance measures to compare numerical simulations of a flood event with one satellite image, e.g., in a model calibration or validation procedure. A series of criterion are proposed to evaluate the…

Conventional super-resolution methods suffer from two drawbacks: substantial computational cost in upscaling an entire large image, and the introduction of extraneous or potentially detrimental information for downstream computer vision…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Tianyi Zhang , Kishore Kasichainula , Yaoxin Zhuo , Baoxin Li , Jae-sun Seo , Yu Cao

This study presents a new image super-resolution (SR) technique based on diffusion inversion, aiming at harnessing the rich image priors encapsulated in large pre-trained diffusion models to improve SR performance. We design a Partial noise…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Zongsheng Yue , Kang Liao , Chen Change Loy
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